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Kumar, Sanjeev ; Venkatesha, M. Achanna ; Balaram, Padmanabhan (2022) Mechanistic Investigations on N–Cα Bond Cleavages in Dibasic Peptides Containing Internal Lys and Arg Residues Journal of the American Society for Mass Spectrometry, 33 (9). pp. 1598-1606. ISSN 1044-0305

Dongre, Aparna Vilas ; Das, Sudip ; Bellur, Asutosh ; Kumar, Sanjeev ; Chandrashekarmath, Anusha ; Karmakar, Tarak ; Balaram, Padmanabhan ; Balasubramanian, Sundaram ; Balaram, Hemalatha (2021) Structural basis for the hyperthermostability of an archaeal enzyme induced by succinimide formation Biophysical Journal, 120 (17). pp. 3732-3746. ISSN 0006-3495

Kumar, Sanjeev ; Vijayasarathy, M. ; Venkatesha, M.A. ; Sunita, P. ; Balaram, P. (2020) Cone snail analogs of the pituitary hormones oxytocin/vasopressin and their carrier protein neurophysin. Proteomic and transcriptomic identification of conopressins and conophysins Biochimica et Biophysica Acta (BBA) - Proteins & Proteomics, 1868 (5). p. 140391. ISSN 1570-9639

Kumar, Sanjeev ; Venkatesha, M. Achanna ; Lall, Sahil ; Prakash, Sunita ; Balaram, Padmanabhan (2020) Mechanistic Insights into an Unusual Side-Chain-Mediated N–Cα Bond Cleavage under Collision-Induced Dissociation Conditions in the Disulfide-Containing Peptide Conopressin Journal of the American Society for Mass Spectrometry, 31 (5). pp. 1083-1092. ISSN 1044-0305

Kalmankar, Neha V. ; Venkatesan, Radhika ; Balaram, Padmanabhan ; Sowdhamini, Ramanathan (2020) Transcriptomic profiling of the medicinal plant Clitoria ternatea: identification of potential genes in cyclotide biosynthesis Scientific Reports, 10 (1). ISSN 2045-2322

Vijayasarathy, M. ; Balaram, P. (2019) Cone snail prolyl-4-hydroxylase α-subunit sequences derived from transcriptomic data and mass spectrometric analysis of variable proline hydroxylation in C. amadis venom Journal of Proteomics, 194 . pp. 37-48. ISSN 1874-3919

Basuroy, Krishnayan ; Kantharaju, Kamanna ; Aravinda, Subrayashastry ; Shamala, Narayanaswamy ; Balaram, Padmanabhan (2019) Pregabalin peptides: conformational comparison of γ3- and γ4-substituted γ-amino acids in αγααα pentapeptides Amino Acids, 51 (9). pp. 1297-1306. ISSN 0939-4451

Kalmankar, Neha V. ; Balaram, P. ; Ramanathan, Sowdhamini ; Venkatesan, Radhika (2018) Modeling and Conformational Analysis of Cyclotides, a Class of Macrocyclic Disulfide Bonded Plant Peptides Biophysical Journal, 114 (3). 49a. ISSN 0006-3495

Crisma, Marco ; Formaggio, Fernando ; Alemán, Carlos ; Torras, Joan ; Ramakrishnan, Chandrasekharan ; Kalmankar, Neha ; Balaram, Padmanabhan ; Toniolo, Claudio (2018) The fully‐extended conformation in peptides and proteins Peptide Science, 110 (5). e23100. ISSN 2475-8817

Vasantha, Basavalingappa ; Yamanappa, Hunashal ; Raghothama, Srinivasarao ; Balaram, Padmanabhan (2017) Conformational properties and aggregation of homo-oligomeric β3 (R)-valine peptides in organic solvents Biopolymers, 108 (3). e23011. ISSN 0006-3525

Vijayasarathy, Marimuthu ; Basheer, Soorej M. ; Franklin, Jayaseelan Benjamin ; Balaram, Padmanabhan (2017) Contryphan Genes and Mature Peptides in the Venom of Nine Cone Snail Species by Transcriptomic and Mass Spectrometric Analysis Journal of Proteome Research, 16 (2). pp. 763-772. ISSN 1535-3893

Vasantha, Basavalingappa ; George, Gijo ; Raghothama, Srinivasarao ; Balaram, Padmanabhan (2017) Homooligomeric β3 (R )-valine peptides: Transformation between C14 and C12 helical structures induced by a guest Aib residue Biopolymers, 108 (1). e22935. ISSN 0006-3525

Toniolo, Claudio ; Crisma, Marco ; Formaggio, Fernando ; Alemán, Carlos ; Ramakrishnan, Chandrasekharan ; Kalmankar, Neha ; Balaram, Padmanabhan (2017) Intramolecular backbone···backbone hydrogen bonds in polypeptide conformations. The other way around: ɛ-turn Biopolymers, 108 (1). e22911. ISSN 0006-3525

Pareek, Vidhi ; Samanta, Moumita ; Joshi, Niranjan V ; Balaram, Hemalatha ; Murthy, Mathur R. N. ; Balaram, Padmanabhan (2016) Connecting Active-Site Loop Conformations and Catalysis in Triosephosphate Isomerase: Insights from a Rare Variation at Residue 96 in the Plasmodial Enzyme ChemBioChem, 17 (7). pp. 620-629. ISSN 1439-4227

Reddy, Madhusudana M. B. ; Basuroy, Krishnayan ; Aravinda, Subrayashastry ; Balaram, Padmanabhan (2016) Crystallographic characterization of the α ,γ C12 helix in hybrid peptide sequences Journal of Peptide Science, 22 (8). pp. 504-510. ISSN 1075-2617

Bandyopadhyay, Debarati ; Prakash, Sunita ; Gupta, Kallol ; Balaram, Padmanabhan (2016) Mass spectrometric analysis of dimer-disrupting mutations in Plasmodium triosephosphate isomerase Analytical Biochemistry, 500 . pp. 45-50. ISSN 0003-2697

Kumar, Sanjeev ; Prakash, Sunita ; Gupta, Kallol ; Dongre, Aparna ; Balaram, Padmanabhan ; Balaram, Hemalatha (2016) Unexpected functional implication of a stable succinimide in the structural stability of Methanocaldococcus jannaschii glutaminase Nature Communications, 7 (1). ISSN 2041-1723

Chandrappa, Siddappa ; Madhusudana Reddy, M. B. ; Sonti, Rajesh ; Basuroy, Krishnayan ; Raghothama, Srinivasarao ; Balaram, Padmanabhan (2015) Directing peptide conformation with centrally positioned pre-organized dipeptide segments: studies of a 12-residue helix and β-hairpin Amino Acids, 47 (2). pp. 291-301. ISSN 0939-4451

Toniolo, Claudio ; Crisma, Marco ; Moretto, Alessandro ; Peggion, Cristina ; Formaggio, Fernando ; Alemán, Carlos ; Cativiela, Carlos ; Ramakrishnan, Chandrasekharan ; Balaram, Padmanabhan (2015) Peptide δ‐Turn: Literature Survey and Recent Progress Chemistry - A European Journal, 21 (40). pp. 13866-13877. ISSN 0947-6539

Bandyopadhyay, Debarati ; Murthy, Mathur R. N. ; Balaram, Hemalatha ; Balaram, Padmanabhan (2015) Probing the role of highly conserved residues in triosephosphate isomerase - analysis of site specific mutants at positions 64 and 75 in thePlasmodialenzyme FEBS Journal, 282 (20). pp. 3863-3882. ISSN 1742-464X

M. B. Reddy, Madhusudana ; Basuroy, K. ; Chandrappa, S. ; Dinesh, B. ; Vasantha, B. ; A. Venkatesha, Manjunath ; Balaram, P. (2015) Structural characterization of folded and extended conformations in peptides containing γ amino acids with proteinogenic side chains: crystal structures of γn, (αγ)n and γγδγ sequences New Journal of Chemistry, 39 (5). pp. 3319-3326. ISSN 1144-0546

Basuroy, Krishnayan ; Karuppiah, Vasantham ; Balaram, Padmanabhan (2014) C11/C9 Helices in Crystals of αβ Hybrid Peptides and Switching Structures between Helix Types by Variation in the α-Residue Organic Letters, 16 (17). pp. 4614-4617. ISSN 1523-7060

Sonti, Rajesh ; Dinesh, Bhimareddy ; Basuroy, Krishnayan ; Raghothama, Srinivasarao ; Shamala, Narayanaswamy ; Balaram, Padmanabhan (2014) C12 Helices in Long Hybrid (αγ)n Peptides Composed Entirely of Unconstrained Residues with Proteinogenic Side Chains Organic Letters, 16 (6). pp. 1656-1659. ISSN 1523-7060

Sonti, Rajesh ; Dinesh, Bhimareddy ; Basuroy, Krishnayan ; Raghothama, Srinivasarao ; Shamala, Narayanaswamy ; Balaram, Padmanabhan (2014) C12 Helices in Long Hybrid (αγ)n Peptides Composed Entirely of Unconstrained Residues with Proteinogenic Side Chains Organic Letters, 16 (6). pp. 1656-1659. ISSN 1523-7060

Sonti, Rajesh ; Rao, K. N. Shashanka ; Chidanand, Sudarshan ; Gowd, Konkallu Hanumae ; Raghothama, Srinivasarao ; Balaram, Padmanabhan (2014) Conformational Analysis of a 20-Membered Cyclic Peptide Disulfide fromConus virgowith a WPW Segment: Evidence for an Aromatic-Proline Sandwich Chemistry - A European Journal, 20 (17). pp. 5075-5086. ISSN 0947-6539

Aravinda, Subrayashastry ; Raghavender, Upadhyayula S. ; Rai, Rajkishor ; Harini, Veldore V. ; Shamala, Narayanaswamy ; Balaram, Padmanabhan (2013) Analysis of designed β-hairpin peptides: molecular conformation and packing in crystals Organic and Biomolecular Chemistry, 11 (25). p. 4220. ISSN 1477-0520

Dinesh, Bhimareddy ; Vinaya, Vishwanathan ; Raghothama, Srinivasarao ; Balaram, Padmanabhan (2013) C12-Helix Development in (αγ)nSequences - Spectroscopic Characterization of Boc-[Aib-γ4(R)Val]-OMe Oligomers European Journal of Organic Chemistry, 2013 (17). pp. 3590-3596. ISSN 1434-193X

Sonti, Rajesh ; Gowd, Konkallu Hanumae ; Rao, K. N. Shashanka ; Ragothama, Srinivasarao ; Rodriguez, Alex ; Perez, Juan Jesus ; Balaram, Padmanabhan (2013) Conformational Diversity in Contryphans fromConusVenom:cis-transIsomerisation and Aromatic/Proline Interactions in the 23-Membered Ring of a 7-Residue Peptide Disulfide Loop Chemistry - A European Journal, 19 (45). pp. 15175-15189. ISSN 0947-6539

Sonti, Rajesh ; Gopi, Hosahudya N. ; Muddegowda, Umashankara ; Ragothama, Srinivasarao ; Balaram, Padmanabhan (2013) A Designed Three-Stranded β-Sheet in an α/β Hybrid Peptide Chemistry - A European Journal, 19 (19). pp. 5955-5965. ISSN 0947-6539

Kuang, Zhihe ; Zhang, Min-Min ; Gupta, Kallol ; Gajewiak, Joanna ; Gulyas, Jozsef ; Balaram, Padmanabhan ; Rivier, Jean E. ; Olivera, Baldomero M. ; Yoshikami, Doju ; Bulaj, Grzegorz ; Norton, Raymond S. (2013) Mammalian Neuronal Sodium Channel Blocker μ-Conotoxin BuIIIB Has a Structured N-Terminus That Influences Potency ACS Chemical Biology, 8 (6). pp. 1344-1351. ISSN 1554-8929

Bhattacharyya, Moitrayee ; Gupta, Kallol ; Gowd, Konkallu Hanumae ; Balaram, Padmanabhan (2013) Rapid mass spectrometric determination of disulfide connectivity in peptides and proteins Molecular BioSystems, 9 (6). p. 1340. ISSN 1742-206X

Kalmankar, Neha V. ; Ramakrishnan, C. ; Balaram, P. (2013) Sparsely populated residue conformations in protein structures: Revisiting “experimental” Ramachandran maps Proteins: Structure, Function, and Bioinformatics, 82 (7). pp. 1101-1112. ISSN 0887-3585

Basuroy, Krishnayan ; Dinesh, Bhimareddy ; Reddy, M. B. Madhusudana ; Chandrappa, Siddapa ; Raghothama, Srinivasarao ; Shamala, Narayanaswamy ; Balaram, Padmanabhan (2013) Unconstrained Homooligomeric γ-Peptides Show High Propensity for C14 Helix Formation Organic Letters, 15 (18). pp. 4866-4869. ISSN 1523-7060

Dinesh, Bhimareddy ; Basuroy, Krishnayan ; Shamala, Narayanaswamy ; Balaram, Padmanabhan (2012) Structural characterization of folded pentapeptides containing centrally positioned β(R)Val, γ(R)Val and γ(S)Val residues Tetrahedron, 68 (23). pp. 4374-4380. ISSN 0040-4020

Vasudev, Prema G. ; Banerjee, Mousumi ; Ramakrishnan, C. ; Balaram, P. (2012) Asparagine and glutamine differ in their propensities to form specific side chain-backbone hydrogen bonded motifs in proteins Proteins: Structure, Function, and Bioinformatics, 80 (4). pp. 991-1002. ISSN 0887-3585

Gupta, Kallol ; Kumar, Mukesh ; Chandrashekara, Krishnappa ; Krishnan, Kozhalmannom S. ; Balaram, Padmanabhan (2012) Combined electron transfer dissociation-collision-induced dissociation fragmentation in the mass spectrometric distinction of leucine, isoleucine, and hydroxyproline residues in peptide natural products Journal of Proteome Research, 11 (2). pp. 515-522. ISSN 1535-3893

Aravinda, Subrayashastry ; Shamala, Narayanaswamy ; Karle, Isabella L. ; Balaram, Padmanabhan (2012) Characterization of bent helical conformations in polymorphic forms of a designed 18-residue peptide containing a central gly-pro segment Peptide Science, 98 (1). pp. 76-86.

Chandrappa, Siddappa ; Aravinda, Subrayashastry ; Raghothama, Srinivasarao ; Sonti, Rajesh ; Rai, Rajkishor ; Harini, Veldore V. ; Shamala, Narayanaswamy ; Balaram, Padmanabhan (2012) Helix and hairpin nucleation in short peptides using centrally positioned conformationally constrained dipeptide segments Organic and Biomolecular Chemistry, 10 . pp. 2815-2823. ISSN 1477-0520

Samanta, Moumita ; Murthy, M. R. N. ; Balaram, Hemalatha ; Balaram, Padmanabhan (2011) Revisiting the mechanism of the triosephosphate isomerase reaction: the role of the fully conserved glutamic acid 97 residue ChemBioChem, 12 (12). pp. 1886-1896. ISSN 1439-4227

Banerjee, Mousumi ; Gupta, Kallol ; Balaram, Hemalatha ; Balaram, Padmanabhan (2011) Mass spectrometric identification of an intramolecular disulfide bond in thermally inactivated triosephosphate isomerase from a thermophilic organism Methanocaldococcus jannaschii Rapid Communications in Mass Spectrometry, 25 (14). pp. 1915-1923. ISSN 0951-4198

Raghavender, Upadhyayula Surya ; Chatterjee, Bhaswati ; Saha, Indranil ; Rajagopal, Appavu ; Shamala, Narayanaswamy ; Balaram, Padmanabhan (2011) Entrapment of a water wire in a hydrophobic peptide channel with an aromatic lining Journal of Physical Chemistry B, 115 (29). pp. 9236-9243. ISSN 1089-5647

Samanta, Moumita ; Banerjee, Mousumi ; Murthy, R. N. Mathur ; Balaram, Hemalatha ; Balaram, Padmanabhan (2011) Probing the role of the fully conserved Cys126 in triosephosphate isomerase by site-specific mutagenesis - distal effects on dimer stability FEBS Journal, 278 (11). pp. 1932-1943. ISSN 1742-464X

Vasudev, Prema G. ; Chatterjee, Sunanda ; Shamala, Narayanaswamy ; Balaram, Padmanabhan (2011) Structural chemistry of peptides containing backbone expanded amino acid residues: conformational features of β, γ, and hybrid peptides Chemical Reviews, 111 (2). pp. 657-687. ISSN 0009-2665

Rajagopal, Appavu ; Aravinda, Subrayashastry ; Raghothama, Srinivasarao ; Shamala, Narayanaswamy ; Balaram, Padmanabhan (2011) Chain length effects on helix-hairpin distribution in short peptides with Aib-DAla and Aib-Aib segments Peptide Science, 96 (6). pp. 744-756.

Banerjee, Mousumi ; Balaram, Hemalatha ; Joshi, N. V. ; Balaram, P. (2011) Engineered dimer interface mutants of triosephosphate isomerase: the role of inter-subunit interactions in enzyme function and stability Protein Engineering Design and Selection, 24 (5). pp. 463-472. ISSN 1741-0126

Balaram, Padmanabhan (2010) Hybrid polypeptides: Gabapentin as a steroechemically constrained γ-amino acid residue Biopolymers: Peptide Science . ISSN 0006-3525

Sarojini, Vijayalekshmi ; Balaji Rao, R. ; Ragothama, S. ; Balaram, Padmanabhan (2010) Solution conformation of a tetradecapeptide stabilized by two di-n-propyl glycine residues Journal of Peptide Science, 16 (8). pp. 430-436. ISSN 1075-2617

Kantharaju, ; Raghothama, Srinivasarao ; Aravinda, Subrayashastry ; Shamala, Narayanaswamy ; Balaram, Padmanabhan (2010) Helical conformations of hexapeptides containing N-terminus diproline segments Biopolymers: Peptide Science, 94 (3). pp. 360-370. ISSN 0006-3525

Balaram, Padmanabhan (2010) Hybrid polypeptides: gabapentin as a steroechemically constrained γ- amino acid residue Peptide Science, 94 (6). pp. 733-741.

Raghavender, U. S. ; Kantharaju, ; Aravinda, S. ; Shamala, N. ; Balaram, P. (2010) Hydrophobic peptide channels and encapsulated water wires Journal of the American Chemical Society, 132 (3). pp. 1075-1086. ISSN 0002-7863

Raghavender, Upadhyayula Surya ; Aravinda, Subrayashastry ; Rai, Rajkishor ; Shamala, Narayanaswamy ; Balaram, Padmanabhan (2010) Peptide hairpin nucleation with the obligatory Type I' β-turn Aib-^DPro segment Organic and Biomolecular Chemistry, 8 (14). pp. 3133-3135. ISSN 1477-0520

Thakur, Suman S. ; Ranganayaki, Rappal S. ; Gupta, Kallol ; Balaram, Padmanabhan (2009) Identification of α- and β-hydroxy acid containing cyclodepsipeptides in natural peptide mixtures using negative ion mass spectrometry Journal of the American Society for Mass Spectrometry, 20 (12). pp. 2221-2228. ISSN 1044-0305

Gayathri, P. ; Banerjee, Mousumi ; Vijayalakshmi, A. ; Balaram, Hemalatha ; Balaram, P. ; Murthy, M. R. N. (2009) Biochemical and structural characterization of residue 96 mutants of Plasmodium falciparum triosephosphate isomerase: active-site loop conformation, hydration and identification of a dimer-interface ligand-binding site Acta Crystallographica Section D: Biological Crystallography, 65 (8). pp. 847-857. ISSN 0907-4449

Banerjee, Mousumi ; Balaram, Hemalatha ; Balaram, Padmanabhan (2009) Structural effects of a dimer interface mutation on catalytic activity of triosephosphate isomerase: the role of conserved residues and complementary mutations FEBS Journal, 276 (15). pp. 4169-4183. ISSN 1742-464X

Thakur, Suman S. ; Balaram, Padmanabhan (2009) Characterization of alkali induced formation of lanthionine, trisulfides, and tetrasulfides from peptide disulfides using negative ion mass spectrometry Journal of the American Society for Mass Spectrometry, 20 (5). pp. 783-791. ISSN 1044-0305

Vasudev, Prema G. ; Aravinda, Subrayashastry ; Ananda, Kuppanna ; Veena, Shettykere Dayananda ; Nagarajan, Kuppuswamy ; Shamala, Narayanaswamy ; Balaram, Padmanabhan (2009) Crystal structures of a new polymorphic form of gabapentin monohydrate and the E and Z isomers of 4-tertiarybutylgabapentin Chemical Biology & Drug Design, 73 (1). pp. 83-96. ISSN 1397-002X

Petrovic, Ana G. ; Polavarapu, Prasad L. ; Mahalakshmi, R. ; Balaram, P. (2009) Characterization of folded conformations in a tetrapeptide containing two tryptophan residues by vibrational circular dichroism Chirality, 21 (1E). E76-E85. ISSN 0899-0042

Raghavender, Upadhyayula S. ; Aravinda, Subrayashastry ; Shamala, Narayanaswamy ; Kantharaju, ; Rai, Rajkishor ; Balaram, Padmanabhan (2009) Characterization of water wires inside hydrophobic tubular peptide structures Journal of the American Chemical Society, 131 (42). pp. 15130-15132. ISSN 0002-7863

Vasudev, Prema G. ; Chatterjee, Sunanda ; Ramakrishnan, Chandrasekharan ; Shamala, Narayanaswamy ; Balaram, Padmanabhan (2009) Conformational choices for the stereochemically constrained γ-amino acid residue gabapentin: theoretical studies and correlation with experimental results Peptide Science, 92 (5). pp. 426-435.

Kantharaju, ; Raghothama, Srinivasarao ; Raghavender, Upadhyayula Surya ; Aravinda, Subrayashastry ; Shamala, Narayanaswamy ; Balaram, Padmanabhan (2009) Conformations of heterochiral and homochiral proline-pseudoproline segments in peptides: context dependent cis-trans peptide bond isomerization Peptide Science, 92 (5). pp. 405-416.

Thakur, Suman S. ; Deepalakshmi, P. D. ; Gayathri, P. ; Banerjee, Mousumi ; Murthy, M. R. N. ; Balaram, P. (2009) Detection of the protein dimers, multiple monomeric states and hydrated forms of Plasmodium falciparum triosephosphate isomerase in the gas phase Protein Engineering Design and Selection, 22 (5). pp. 289-304. ISSN 1741-0126

Chatterjee, Sunanda ; Vasudev, Prema G. ; Raghothama, Srinivasarao ; Ramakrishnan, Chandrasekharan ; Shamala, Narayanaswamy ; Balaram, Padmanabhan (2009) Expanding the peptide β-turn in αγ hybrid sequences: 12 atom hydrogen bonded helical and hairpin turns Journal of the American Chemical Society, 131 (16). pp. 5956-5965. ISSN 0002-7863

Vasudev, Prema G. ; Chatterjee, Sunanda ; Shamala, Narayanaswamy ; Balaram, Padmanabhan (2009) Gabapentin: A stereochemically constrained γ amino acid residue in hybrid peptide design Accounts of Chemical Research, 42 (10). pp. 1628-1639. ISSN 0001-4842

Vasudev, Prema G. ; Chatterjee, Sunanda ; Ananda, Kuppanna ; Shamala, Narayanaswamy ; Balaram, Padmanabhan (2008) Hybrid αβ polypeptides: structural characterization of a C₁₂/C₁₀ helix with alternating hydrogen-bond polarity Angewandte Chemie International Edition, 47 (34). pp. 6430-6432. ISSN 1433-7851

Chatterjee, Bhaswati ; Saha, Indranil ; Raghothama, Srinivasarao ; Aravinda, Subrayashastry ; Rai, Rajkishor ; Shamala, Narayanaswamy ; Balaram, Padmanabhan (2008) Designed peptides with homochiral and heterochiral diproline templates as conformational constraints Chemistry: A European Journal, 14 (20). pp. 6192-6204. ISSN 0947-6539

Aravinda, Subrayashastry ; Shamala, Narayanaswamy ; Balaram, Padmanabhan (2008) Aib residues in peptaibiotics and synthetic sequences: Analysis of nonhelical conformations Chemistry and Biodiversity, 5 (7). pp. 1238-1262. ISSN 1612-1872

Gowd, Konkallu Hanumae ; Dewan, Kalyan Kumar ; Iengar, Prathima ; Krishnan, Kozhalmannom S. ; Balaram, Padmanabhan (2008) Probing peptide libraries from Conus achatinus using mass spectrometry and cDNA sequencing: identification of δ and ω-conotoxins Journal of Mass Spectrometry, 43 (6). pp. 791-805. ISSN 1076-5174

Hegde, Raghurama P. ; Aravinda, Subrayashastry ; Rai, Rajkishor ; Kaul, Ramesh ; Vijayalakshmi, Sarojini ; Rao, R. Balaji ; Shamala, Narayanaswamy ; Balaram, Padmanabhan (2008) Conformation of di-n-propylglycine residues (Dpg) in peptides: Crystal structures of a type I′β-turn forming tetrapeptide and an α-helical tetradecapeptide Journal of Peptide Science, 14 (5). pp. 648-659. ISSN 1075-2617

Thakur, Suman S. ; Balaram, Padmanabhan (2008) Fragmentation of peptide disulfides under conditions of negative ion mass spectrometry: Studies of oxidized glutathione and contryphan Journal of the American Society for Mass Spectrometry, 19 (3). pp. 358-366. ISSN 1044-0305

Vasudev, Prema G. ; Shamala, Narayanaswamy ; Balaram, Padmanabhan (2008) Nucleation, growth, and form in crystals of peptide helices Journal of Physical Chemistry, 112 (4). pp. 1308-1314. ISSN 0022-3654

Mandal, Amit Kumar ; Bisht, Shveta ; Bhat, Vijay S. ; Krishnaswamy, Patnam Rajagopalan ; Balaram, Padmanabhan (2008) Electrospray mass spectrometric characterization of hemoglobin Q (Hb Q-India) and a double mutant hemoglobin S/D in clinical samples. Clinical Biochemistry, 41 (1-2). pp. 75-81. ISSN 0009-9120

Vasudev, Prema G. ; Rai, Rajkishor ; Shamala, Narayanaswamy ; Balaram, Padmanabhan (2008) Conformations of β-amino acid residues in peptides: X-ray diffraction studies of peptides containing the achiral residue 1-aminocyclohexaneacetic acid, β^3,3Ac₆c Biopolymers: Peptide Science, 90 (2). pp. 138-150. ISSN 0006-3525

Saha, Indranil ; Chatterjee, Bhaswati ; Shamala, Narayanaswamy ; Balaram, Padmanabhan (2008) Crystal structures of peptide enantiomers and racemates: probing conformational diversity in heterochiral Pro-Pro sequences Peptide Science, 90 (4). pp. 537-543.

Chatterjee, Sunanda ; Vasudev, Prema G. ; Ananda, Kuppanna ; Raghothama, Srinivasarao ; Shamala, Narayanaswamy ; Balaram, Padmanabhan (2008) Multiple conformational states in crystals and in solution in αγ hybrid peptides. Fragility of the c₁₂ helix in short sequences Journal of Organic Chemistry, 73 (17). pp. 6595-6606. ISSN 0022-3263

Chatterjee, Sunanda ; Vasudev, Prema G. ; Raghothama, Srinivasarao ; Shamala, Narayanaswamy ; Balaram, Padmanabhan (2008) Solid state and solution conformations of a hybrid αγααγα hexapeptide. Characterization of a backbone expanded analog of the α-polypeptide 3₁₀-helix Biopolymers: Peptide Science, 90 (6). pp. 759-771. ISSN 0006-3525

Saikumari, Y. K. ; Balaram, P. (2008) An internally quenched fluorescent substrate for collagenase Peptide Science, 90 (2). pp. 131-137.

Tendulkar, S. R. ; Saikumari, Y. K. ; Patel, V. ; Raghotama, S. ; Munshi, T.K. ; Balaram, P. ; Chattoo, Bharat Bhushan (2007) Isolation, purification and characterization of an antifungal molecule produced by Bacillus licheniformis BC98, and its effect on phytopathogen Magnaporthe grisea Journal of Applied Microbiology, 103 (6). pp. 2331-2339. ISSN 1364-5072

Thakur, Suman S. ; Balaram, Padmanabhan (2007) Rapid mass spectral identification of contryphans. Detection of characteristic peptide ions by fragmentation of intact disulfide-bonded peptides in crude venom Rapid Communications in Mass Spectrometry, 21 (21). pp. 3420-3426. ISSN 0951-4198

Mandal, Amit Kumar ; Woodi, Murali ; Sood, Varun ; Krishnaswamy, Patnam Rajagopalan ; Rao, Anjali ; Ballal, Sudarshan ; Balaram, Padmanabhan (2007) Quantitation and characterization of glutathionyl haemoglobin as an oxidative stress marker in chronic renal failure by mass spectrometry Clinical Biochemistry, 40 (13-14). pp. 986-994. ISSN 0009-9120

Chatterjee, Sunanda ; Roy, Rituparna Sinha ; Balaram, P. (2007) Expanding the polypeptide backbone: Hydrogen-bonded conformations in hybrid polypeptides containing the higher homologues of α-amino acids Journal of the Royal Society Interface, 4 (15). pp. 587-606. ISSN 1742-5689

Mandal, Amit Kumar ; Ramasamy, Mani Ramakrishnan Santhana ; Sabareesh, Varatharajan ; Openshaw, Matthew E. ; Krishnan, Kozhalmannom S. ; Balaram, Padmanabhan (2007) Sequencing of T-superfamily conotoxins from conus virgo: Pyroglutamic acid identification and disulfide arrangement by MALDI mass spectrometry Journal of the American Society for Mass Spectrometry, 18 (8). pp. 1396-1404. ISSN 1044-0305

Rai, Rajkishor ; Vasudev, Prema G. ; Ananda, Kuppanna ; Raghothama, Srinivasarao ; Shamala, Narayanaswamy ; Karle, Isabella L. ; Balaram, Padmanabhan (2007) Hybrid peptides: Expanding the turn in peptide hairpins by the insertion of β-, γ-, and δ-residues Chemistry: A European Journal, 13 (20). pp. 5917-5926. ISSN 0947-6539

Gayathri, P. ; Banerjee, M. ; Vijayalakshmi, A. ; Azeez, S. ; Balaram, H. ; Balaram, P. ; Murthy, M. R. N. (2007) Structure of triosephosphate isomerase (TIM) from Methanocaldococcus jannaschii Acta Crystallographica Section D: Biological Crystallography, 63 (2). pp. 206-220. ISSN 0907-4449

Vasudev, Prema G. ; Ananda, Kuppanna ; Chatterjee, Sunanda ; Aravinda, Subrayashastry ; Shamala, Narayanaswamy ; Balaram, Padmanabhan (2007) Hybrid peptide design. Hydrogen bonded conformations in peptides containing the stereochemically constrained γ-amino acid residue, gabapentin Journal of the American Chemical Society, 129 (13). pp. 4039-4048. ISSN 0002-7863

Sabareesh, V. ; Ranganayaki, R. S. ; Raghothama, S. ; Bopanna, M. P. ; Balaram, Hemalatha ; Srinivasan, M. C. ; Balaram, P. (2007) Identification and Characterization of a Library of Microheterogeneous Cyclohexadepsipeptides from the Fungus Isaria Journal of Natural Products, 70 (5). pp. 715-729. ISSN 0163-3864

Mahalakshmi, Radhakrishnan ; Sengupta, Anindita ; Raghothama, Srinivasarao ; Shamala, Narayanaswamy ; Balaram, Padmanabhan (2007) Tryptophan rich peptides: Influence of indole rings on backbone conformation Biopolymers: Peptide Science, 88 (1). pp. 36-54. ISSN 0006-3525

Rai, Rajkishor ; Raghothama, Srinivasarao ; Sridharan, Rajagopalan ; Balaram, Padmanabhan (2007) Tuning the β-turn segment in designed peptide β-hairpins: Construction of a stable type I′ β-turn nucleus and hairpin-helix transition promoting segments Ч Biopolymers: Peptide Science, 88 (3). pp. 350-361. ISSN 0006-3525

Sabareesh, V. ; Hanumae Gowd, K. ; Ramasamy, P. ; Sudarslal, S. ; Krishnan, K. S. ; Sikdar, S. K. ; Balaram, P. (2006) Characterization of contryphans from Conus loroisii and Conus amadis that target calcium channels Peptides, 27 (11). pp. 2647-2654. ISSN 0196-9781

Saikumari, Yegnisettipalli K. ; Ravindra, Gudihal ; Balaram, Padmanabhan (2006) Structure formation in short designed peptides probed by proteolytic cleavage Protein and Peptide Letters, 13 (5). pp. 471-476. ISSN 0929-8665

Roy, Rituparna S. ; Gopi, Hosahudya N. ; Raghothama, Srinivasarao ; Karle, Isabella L. ; Balaram, Padmanabhan (2006) Hybrid peptide hairpins containing α- and ω-amino acids: conformational analysis of decapeptides with unsubstituted β, γ-, and δ-residues at positions 3 and 8 Chemistry: A European Journal, 12 (12). pp. 3295-3302. ISSN 0947-6539

Iengar, Prathima ; Joshi, N. V. ; Balaram, Padmanabhan (2006) Conformational and sequence signatures in β helix proteins Structure, 14 (3). pp. 529-542. ISSN 0969-2126

Sabareesh, Varatharajan ; Balaram, Padmanabhan (2006) Tandem electrospray mass spectrometric studies of proton and sodium ion adducts of neutral peptides with modified N- and C-termini: Synthetic model peptides and microheterogeneous peptaibol antibiotics Rapid Communications in Mass Spectrometry, 20 (4). pp. 618-628. ISSN 0951-4198

Sengupta, Anindita ; Roy, Rituparna S. ; Sabareesh, Varatharajan ; Shamala, Narayanaswamy ; Balaram, Padmanabhan (2006) Aggregation modes in sheets formed by protected β-amino acids and β-peptides Organic and Biomolecular Chemistry, 4 (6). pp. 1166-1173. ISSN 1477-0520

Nair, Sudarslal Sadasivan ; Nilsson, Carol L. ; Emmett, Mark R. ; Schaub, Tanner M. ; Hanumae Gowd, Konkallu ; Thakur, Suman S. ; Krishnan, K. S. ; Balaram, Padmanabhan ; Marshall, Alan G. (2006) De novo sequencing and disulfide mapping of a bromotryptophan-containing conotoxin by fourier transform ion cyclotron resonance mass spectrometry Analytical Chemistry, 78 (23). pp. 8082-8088. ISSN 0003-2700

Rai, Rajkishor ; Raghothama, Srinivasarao ; Balaram, Padmanabhan (2006) Design of a peptide hairpin containing a central three-residue loop Journal of the American Chemical Society, 128 (8). pp. 2675-2681. ISSN 0002-7863

Rai, Rajkishor ; Aravinda, Subrayashastry ; Kanagarajadurai, Karuppiah ; Raghothama, Srinivasarao ; Shamala, Narayanaswamy ; Balaram, Padmanabhan (2006) Diproline templates as folding nuclei in designed peptides. Conformational analysis of synthetic peptide helices containing amino terminal pro-pro segments Journal of the American Chemical Society, 128 (24). pp. 7916-7928. ISSN 0002-7863

Mahalakshmi, Radhakrishnan ; Raghothama, Srinivasarao ; Balaram, Padmanabhan (2006) NMR analysis of aromatic interactions in designed peptide β-hairpins Journal of the American Chemical Society, 128 (4). pp. 1125-1138. ISSN 0002-7863

Sengupta, Anindita ; Aravinda, Subrayashastry ; Shamala, Narayanaswamy ; Muruga Poopathi Raja, K. ; Balaram, Padmanabhan (2006) Structural studies of model peptides containing β-, γ and δ-amino acids Organic and Biomolecular Chemistry, 4 (22). pp. 4214-4222. ISSN 1477-0520

Mahalakshmi, Radhakrishnan ; Shanmugam, Ganesh ; Polavarapu, Prasad L. ; Balaram, Padmanabhan (2005) Circular dichroism of designed peptide helices and β-hairpins: analysis of trp- and tyr-rich peptides ChemBioChem, 6 (12). pp. 2152-2158. ISSN 1439-4227

Gowd, K. Hanumae ; Sabareesh, V. ; Sudarslal, S. ; Iengar, Prathima ; Franklin, Benjamin ; Fernando, Antony ; Dewan, Kalyan ; Ramaswami, Mani ; Sarma, Siddhartha P. ; Sikdar, Sujit ; Balaram, P. ; Krishnan, K. S. (2005) Novel peptides of therapeutic promise from Indian conidae Annals of the New York Academy of Sciences, 1056 . pp. 462-473. ISSN 0077-8923

Mahalakshmi, R. ; Sengupta, A. ; Raghothama, S. ; Shamala, N. ; Balaram, P. (2005) Tryptophan-containing peptide helices: Interactions involving the indole side chain The Journal of Peptide Research, 66 (5). pp. 277-296. ISSN 1397-002X

Sampathkumar, Rangasamy ; Balasubramanyam, Muthuswamy ; Sudarslal, Sadasivannair ; Rema, Mohan ; Mohan, Viswanthan ; Balaram, Padmanabhan (2005) Increased glutathionylated hemoglobin (HbSSG) in type 2 diabetes subjects with microangiopathy Clinical Biochemistry, 38 (10). pp. 892-899. ISSN 0009-9120

Vasudev, Prema G. ; Shamala, Narayanaswamy ; Ananda, Kuppanna ; Balaram, Padmanabhan (2005) C₉ helices and ribbons in γ-peptides: Crystal structures of gabapentin oligomers Angewandte Chemie International Edition, 44 (31). pp. 4972-4975. ISSN 1433-7851

Harini, Veldore Vidya ; Aravinda, Subrayashastry ; Rai, Rajkishor ; Shamala, Narayanaswamy ; Balaram, Padmanabhan (2005) Molecular conformation and packing of peptide hairpins in the solid state: Structures of two synthetic octapeptides containing 1-aminocycloalkane-1-carboxylic acid residues at the i+2 position of the βturn Chemistry: A European Journal, 11 (12). pp. 3609-3620. ISSN 0947-6539

Sengupta, A. ; Mahalakshmi, R. ; Shamala, N. ; Balaram, P. (2005) Aromatic interactions in tryptophan-containing peptides: crystal structures of model tryptophan peptides and phenylalanine analogs The Journal of Peptide Research, 65 (1). pp. 113-129. ISSN 1397-002X

Ranjini, Arumugam Sri ; Das, Puspendu K. ; Balaram, Padmanabhan (2005) Binding constant measurement by hyper-Rayleigh scattering: bilirubin-human serum albumin binding as a case study Journal of Physical Chemistry B, 109 (12). pp. 5950-5953. ISSN 1089-5647

Roy, Rituparna S. ; Gopi, Hosahudya N. ; Raghothama, S. ; Gilardi, Richard D. ; Karle, Isabella L. ; Balaram, Padmanabhan (2005) Peptide hairpins with strand segments containing α- and β-amino acid residues: Cross-strand aromatic interactions of facing Phe residues Biopolymers: Peptide Science, 80 (6). pp. 787-799. ISSN 0006-3525

Ravindra, Gudihal ; Balaram, Padmanabhan (2005) Plasmodium falciparum triosephosphate isomerase: new insights into an old enzyme Pure and Applied Chemistry, 77 (1). pp. 281-289. ISSN 0033-4545

Ananda, Kuppanna ; Vasudev, Prema G. ; Sengupta, Anindita ; Raja, K. Muruga Poopathi ; Shamala, Narayanaswamy ; Balaram, Padmanabhan (2005) Polypeptide helices in hybrid peptide sequences Journal of the American Chemical Society, 127 (47). pp. 16668-16674. ISSN 0002-7863

Aravinda, Subrayashastry ; Datta, Saumen ; Shamala, Narayanaswamy ; Balaram, Padmanabhan (2004) Hydrogen bond lengths in polypeptide helices: no evidence for short hydrogen bonds Angewandte Chemie, 116 (48). pp. 6896-6899. ISSN 0044-8249

Roy, Rituparna S. ; Karle, Isabella L. ; Raghothama, S. ; Balaram, P. (2004) αβ hybrid peptides: A polypeptide helix with a central segment containing two consecutive β-amino acid residues Proceedings of the National Academy of Sciences of the United States of America, 101 (47). pp. 16478-16482. ISSN 0027-8424

Eaazhisai, K. ; Balaram, H. ; Balaram, P. ; Murthy, M. R. N. (2004) Structures of unliganded and inhibitor complexes of W168F, a loop6 hinge mutant of Plasmodium falciparum Triosephosphate Isomerase: observation of an intermediate position of loop6 Journal of Molecular Biology, 343 (3). pp. 671-684. ISSN 0022-2836

Sarma, Siddhartha P. ; Kumar, G. Senthil ; Sudarslal, S. ; Iengar, Prathima ; Ramasamy, P. ; Sikdar, Sujit K. ; Krishnan, K. S. ; Balaram, Padmanabhan (2004) Solution structure of δ-Am2766: A highly hydrophobic δ-conotoxin from Conus amadis that inhibits inactivation of neuronal voltage-gated sodium channels Chemistry and Biodiversity, 2 (4). pp. 535-556. ISSN 1612-1872

Sudarslal, Sadasivannair ; Singaravadivelan, Govindaswamy ; Ramasamy, Palanisamy ; Ananda, Kuppanna ; Sarma, Siddhartha P. ; Sikdara, Sujit K. ; Krishnan, K. S. ; Balaram, Padmanabhan (2004) A novel 13 residue acyclic peptide from the marine snail, Conus monile, targets potassium channels Biochemical and Biophysical Research Communications, 317 (3). pp. 682-688. ISSN 0006-291X

Roy, R. S. ; Balaram, P. (2004) Conformational properties of hybrid peptides containing α- and ω-amino acids The Journal of Peptide Research, 63 (3). pp. 279-289. ISSN 1397-002X

Datta, Saumen ; Rathore, R. N. S. ; Vijayalakshmi, S. ; Vasudev, Prema G. ; Rao, R. Balaji ; Balaram, P. ; Shamala, N. (2004) Peptide helices with pendant cycloalkane rings. Characterization of conformations of 1-aminocyclooctane-1-carboxylic acid (Ac₈c) residues in peptides Journal of Peptide Science, 10 (3). pp. 160-172. ISSN 1075-2617

Ravindra, Gudihal ; Ranganayaki, Rappal. S. ; Raghothama, Srinivasa ; Srinivasan, Mandayam C. ; Gilardi, Richard D. ; Karle, Isabella L. ; Balaram, Padmanabhan (2004) Two novel hexadepsipeptides with several modified amino acid residues isolated from the fungus isaria Chemistry and Biodiversity, 1 (3). pp. 489-504. ISSN 1612-1872

Karle, I. L. ; Prasad, S. ; Balaram, P. (2004) A combined extended and helical backbone for Boc-(Ala-Leu-Ac₇c-)₂-OMe The Journal of Peptide Research, 63 (2). pp. 175-180. ISSN 1397-002X

Aravinda, Subrayashastry ; Harini, Veldore Vidya ; Shamala, Narayanaswamy ; Das, Chittaranjan ; Balaram, Padmanabhan (2004) Structure and assembly of designed β-hairpin peptides in crystals as models for β-sheet aggregation Biochemistry, 43 (7). pp. 1832-1846. ISSN 0006-2960

Parthasarathy, Sampathkumar ; Eaazhisai, Kandiah ; Balaram, Hemalatha ; Balaram, Padmanabhan ; Murthy, Mathur R. N. (2003) Structure of Plasmodium falciparum triose-phosphate isomerase-2-phosphoglycerate complex at 1.1-Å resolution Journal of Biological Chemistry, 270 . pp. 52461-52470. ISSN 0021-9258

Ananda, K. ; Aravinda, S. ; Vasudev, Prema G. ; Raja, K. Muruga Poopathi ; Sivaramakrishnan, H. ; Nagarajan, K. ; Shamala, N. ; Balaram, P. (2003) Stereochemistry of gabapentin and several derivatives: solid state conformations and solution equilibria Current Science, 85 (7). pp. 1002-1011. ISSN 0011-3891

Sudarslal, S. ; Majumdar, Sriparna ; Ramasamy, P. ; Dhawan, Ritu ; Pal, Prajna P. ; Ramaswami, Mani ; Lala, Anil K. ; Sikdar, S. K. ; Sarma, Siddhartha P. ; Krishnan, K. S. ; Balaram, P. (2003) Sodium channel modulating activity in a δ-conotoxin from an Indian marine snail FEBS Letters, 553 (1). pp. 209-212. ISSN 0014-5793

Aravinda, Subrayashastry ; Ananda, Kuppanna ; Shamala, Narayanaswamy ; Balaram, Padmanabhan (2003) α-γ hybrid peptides that contain the conformationally constrained gabapentin residue: characterization of mimetics of chain reversals Chemistry: A European Journal, 9 (19). pp. 4789-4795. ISSN 0947-6539

Pattanaik, Priyaranjan ; Jain, Bimba ; Ravindra, Gudihal ; Gopi, Hosahudya N. ; Pal, Prajna P. ; Balaram, Hemalatha ; Balaram, Padmanabhan (2003) Stage-specific profiling of Plasmodium falciparum proteases using an internally quenched multispecificity protease substrate Biochemical and Biophysical Research Communications, 309 (4). pp. 974-979. ISSN 0006-291X

Aravinda, S. ; Shamala, N. ; S. Roy, Rituparna ; Balaram, P. (2003) Non-protein amino acids in peptide design Proceedings of the Indian Academy of Sciences - Chemical Sciences, 115 (5-6). pp. 373-400. ISSN 0253-4134

Balaram, P. ; Singh, S. Kumar ; Babu, M. Madan (2003) Registering α-helices and β-strands using backbone C-H...O interactions Proteins: Structure, Function, and Bioinformatics, 51 (2). pp. 167-171. ISSN 0887-3585

Gopi, Hosahudya N. ; Ravindra, Gudihal ; Pal, Prajna P. ; Pattanaik, Priyaranjan ; Balaram, Hemalatha ; Balaram, Padmanabhan (2003) Proteolytic stability of β-peptide bonds probed using quenched fluorescent substrates incorporating a hemoglobin cleavage site FEBS Letters, 535 (1). pp. 175-178. ISSN 0014-5793

Pattanaik, Priyaranjan ; Ravindra, Gudihal ; Sengupta, Chandana ; Maithal, Kapil ; Balaram, Padmanabhan ; Balaram, Hemalatha (2003) Unusual fluorescence of W168 in Plasmodium falciparum triosephosphate isomerase, probed by single-tryptophan mutants European Journal of Biochemistry, 270 (4). pp. 745-756. ISSN 0014-2956

Aravinda, Subrayashastry ; Shamala, Narayanaswamy ; Das, Chittaranjan ; Sriranjini, Arumugam ; Karle, Isabella L. ; Balaram, Padmanabhan (2003) Aromatic-aromatic interactions in crystal structures of helical peptide scaffolds containing projecting phenylalanine residues Journal of the American Chemical Society, 125 (18). pp. 5308-5315. ISSN 0002-7863

Aravinda, Subrayashastry ; Shamala, Narayanaswamy ; Bandyopadhyay, Abhishek ; Balaram, Padmanabhan (2003) Probing the role of the C-H···O hydrogen bond stabilized polypeptide chain reversal at the c-terminus of designed peptide helices. Structural characterization of three decapeptides Journal of the American Chemical Society, 125 (49). pp. 15065-15075. ISSN 0002-7863

Sudha, R. ; Panda, M. ; Chandrasekhar, J. ; Balaram, Padmanabhan (2002) Structural effects on the formation of proton and alkali metal ion adducts of apolar, neutral peptides: electrospray ionization mass spectrometry and ab initio theoretical studies Chemistry: A European Journal, 8 (21). pp. 4980-4991. ISSN 0947-6539

Babu, M. Madan ; Singh, S. Kumar ; Balaram, P. (2002) A C-H...O hydrogen bond stabilized polypeptide chain reversal motif at the C terminus of helices in proteins Journal of Molecular Biology, 322 (7). pp. 871-880. ISSN 0022-2836

Aravinda, S. ; Shamala, N. ; Das, Chittaranjan ; Balaram, P. (2002) Structural analysis of peptide helices containing centrally positioned lactic acid residues Biopolymers, 64 (5). pp. 255-267. ISSN 0006-3525

Shakkottai, V. G. ; Sudha, R. ; Balaram, P. (2002) Gramicidin S: A peptide model for protein glycation and reversal of glycation using nucleophilic amines The Journal of Peptide Research, 60 (2). pp. 112-120. ISSN 1397-002X

Maithal, Kapil ; Ravindra, Gudihal ; Nagaraj, G. ; Singh, S. Kumar ; Balaram, Hemalatha ; Balaram, P. (2002) Subunit interface mutation disrupting an aromatic cluster in Plasmodium falciparum triosephosphate isomerase: effect on dimer stability Protein Engineering Design & Selection, 15 (7). pp. 575-584. ISSN 1741-0126

Maithal, Kapil ; Ravindra, Gudihal ; Balaram, Hemalatha ; Balaram, Padmanabhan (2002) Inhibition of Plasmodium falciparum triose-phosphate isomerase by chemical modification of an interface cysteine- electrospray ionization mass spectrometric analysis of differential cysteine reactivities Journal of Biological Chemistry, 277 . pp. 25106-25114. ISSN 0021-9258

Karle, Isabella ; Gopi, Hosahudya N. ; Balaram, Padmanabhan (2002) Infinite pleated β-sheet formed by the β-hairpin Boc-β-Phe-β-Phe-D-Pro-Gly-β-Phe-β-Phe-OMe Proceedings of the National Academy of Sciences of the United States of America, 99 (8). pp. 5160-5164. ISSN 0027-8424

Cheung, Eugene Y. ; McCabe, Emma E. ; Harris, Kenneth D. M. ; Johnston, Roy L. ; Tedesco, Emilio ; Raja, K. Muruga Poopathi ; Balaram, Padmanabhan (2002) C-H...O hydrogen bond mediated chain reversal in a peptide containing a γ-amino acid residue, determined directly from powder X-ray diffraction data Angewandte Chemie International Edition, 41 (3). pp. 494-496. ISSN 1433-7851

Venkatraman, Janani ; Nagana, Gowda A. ; Balaram, Padmanabhan (2002) Design and construction of an open multistranded β-sheet polypeptide stabilized by a disulfide bridge Journal of the American Chemical Society, 124 (18). pp. 4987-4994. ISSN 0002-7863

Venkatraman, Janani ; Gowda, G. A. Nagana ; Balaram, Padmanabhan (2002) Structural analysis of synthetic peptide fragments from EmrE, a multidrug resistance protein, in a membrane-mimetic environment Biochemistry, 41 (21). pp. 6631-6639. ISSN 0006-2960

Parthasarathy, S. ; Ravindra, G. ; Balaram, Hemalatha ; Balaram, P. ; Murthy, M. R. N. (2002) Structure of the plasmodium falciparum triosephosphate isomerase-phosphoglycolate complex in two crystal forms: Characterization of catalytic loop open and closed conformations in the ligand-bound state Biochemistry, 41 (44). pp. 13178-13188. ISSN 0006-2960

Parthasarathy, S. ; Balaram, H. ; Balaram, P. ; Murthy, M. R. N. (2002) Structures of Plasmodium falciparum triosephosphate isomerase complexed to substrate analogues: observation of the catalytic loop in the open conformation in the ligand-bound state Acta Crystallographica Section D: Biological Crystallography, D58 . pp. 1992-2000. ISSN 0907-4449

Aravinda, S. ; Shamala, N. ; Rajkishore, R. ; Gopi, H. N. ; Balaram, P. (2002) A crystalline β-hairpin peptide nucleated by a type I' Aib-D-Ala β-turn. Evidence for cross-strand aromatic interactions Angewandte Chemie International Edition, 41 . pp. 3863-3865. ISSN 1433-7851

Gopi, Hosahudya N. ; Roy, Rituparna S. ; R. Raghothama, Srinivasa ; Karle, Isabella L. ; Balaram, Padmanabhan (2002) β-hairpins generated from hybrid peptide sequences containing both α- and β-amino acids Helvetica Chimica Acta, 85 (10). pp. 3313-3330. ISSN 0018-019X

Uma, M. V. ; Balaram, P. ; Sudha, R. (2001) Spermidine as a potential biosynthetic precursor to the 1,5-diazabicyclo[4:3:0]nonene residue in the efrapeptins The Journal of Peptide Research, 58 (5). pp. 375-379. ISSN 1397-002X

Karle, Isabella L. ; Das, Chittaranjan ; Balaram, P. (2001) Effects of hydrogen-bond deletion on peptide helices: Structural characterization of depsipeptides containing lactic acid Biopolymers, 59 (4). pp. 276-289. ISSN 0006-3525

Singh, S. Kumar ; Maithal, Kapil ; Balaram, Hemalatha ; Balaram, P. (2001) Synthetic peptides as inactivators of multimeric enzymes: Inhibition of Plasmodium falciparum triosephosphate isomerase by interface peptides FEBS Letters, 501 (1). pp. 19-23. ISSN 0014-5793

Venkatraman, Janani ; Aggarwal, Kamna ; Balaram, P. (2001) Helical peptide models for protein glycation: proximity effects in catalysis of the amadori rearrangement Chemistry & Biology, 8 (7). pp. 611-615. ISSN 1074-5521

Raya, Soumya S. ; Singh, S. Kumar ; Balaram, P. (2001) An electrospray ionization mass spectrometry investigation of 1-anilino-8-naphthalene-sulfonate (ANS) binding to proteins Journal of the American Society for Mass Spectrometry, 12 (4). pp. 428-438. ISSN 1044-0305

Karle, Isabella L. ; Gopi, Hosahudya N. ; Balaram, Padmanabhan (2001) Peptide hybrids containing α- and β-amino acids: structure of a decapeptide β-hairpin with two facing β-phenylalanine residues Proceedings of the National Academy of Sciences of the United States of America, 98 (7). pp. 3716-3719. ISSN 0027-8424

Das, Chittaranjan ; Naganagowda, G. A. ; Karle, Isabella L. ; Balaram, P. (2001) Designed β-hairpin peptides with defined tight turn stereochemistry Biopolymers, 58 (3). pp. 335-346. ISSN 0006-3525

Das, Chittaranjan ; Shankaramma, S. Channaveerappa ; Balaram, Padmanabhan (2001) Molecular carpentry: Piecing together helices and hairpins in designed peptides Chemistry: A European Journal, 7 (4). pp. 840-847. ISSN 0947-6539

Venkatraman, Janani ; Naganagowda, G. A. ; Sudha, R. ; Balaram, Padmanabhan (2001) De novo design of a five-stranded β-sheet anchoring a metal-ion binding site Chemical Communications (24). pp. 2660-2661. ISSN 1359-7345

Venkatraman, Janani ; Shankaramma, Sasalu C. ; Balaram, Padmanabhan (2001) Design of folded peptides Chemical Reviews, 101 (10). pp. 3131-3152. ISSN 0009-2665

Das, C. ; Balaram, P. ; Nayak, V. ; Raghothama, S. (2000) Synthetic protein design: construction of a four-stranded β-sheet structure and evaluation of its integrity in methanol-water systems The Journal of Peptide Research, 56 (5). pp. 307-317. ISSN 1397-002X

Ratnaparkhi, Girish S. ; Awasthi, Satish Kumar ; Rani, P. ; Balaram, P. ; Varadarajan, R. (2000) Structural and thermodynamic consequences of introducing α-aminoisobutyric acid in the S peptide of ribonuclease S Protein Engineering Design & Selection, 13 (10). pp. 697-702. ISSN 1741-0126

Kaul, Ramesh ; Banumathi, S. ; Velmurugan, D. ; Rao, R. Balaji ; Balaram, P. (2000) Conformational choice at α,α-di-n-propylglycine residues: helical or fully extended structures? Biopolymers, 54 (3). pp. 159-167. ISSN 0006-3525

Aravinda, S. ; Shamala, N. ; Pramanik, Animesh ; Das, Chittaranjan ; Balaram, P. (2000) An unusual C-H ... O hydrogen bond mediated reversal of polypeptide chain direction in a synthetic peptide helix Biochemical and Biophysical Research Communications, 273 (3). pp. 933-936. ISSN 0006-291X

David, Sunil A. ; Awasthi, Satish K. ; Balaram, P. (2000) The role of polar and facial amphipathic character in determining lipopolysaccharide-binding properties in synthetic cationic peptides Innate Immunity, 6 (3). pp. 249-256. ISSN 1753-4259

Kaul, R. ; Balaram, P. ; Banumathi, S. ; Velmurugan, D. ; Ravikumar, K. ; Balaji Rao, R. (2000) Context-dependent conformation of diethylglycine residues in peptides The Journal of Peptide Research, 55 (4). pp. 271-278. ISSN 1397-002X

Karle, Isabella L. ; Das, Chittaranjan ; Balaram, Padmanabhan (2000) De novo protein design: crystallographic characterization of a synthetic peptide containing independent helical and hairpin domains Proceedings of the National Academy of Sciences of the United States of America, 97 (7). pp. 3034-3037. ISSN 0027-8424

Vijayalakshmi, S. ; Rao, R. Balaji ; Karle, I. L. ; Balaram, P. (2000) Comparison of helix-stabilizing effects of α,α-dialkyl glycines with linear and cycloalkyl side chains Biopolymers, 53 (1). pp. 84-98. ISSN 0006-3525

Zhao, Chunxia ; Polavarapu, Prasad L. ; Das, Chittaranjan ; Balaram, P. (2000) Vibrational circular dichroism of β-hairpin peptides Journal of the American Chemical Society, 122 (34). pp. 8228-8231. ISSN 0002-7863

Awasthi, Satish K. ; Shankaramma, S. C. ; Raghothama, S. ; Balaram, P. (1999) Solvent-induced β-hairpin to helix conformational transition in a designed peptide Biopolymers, 58 (5). pp. 465-476. ISSN 0006-3525

Ray, Soumya S. ; Balaram, Hemalatha ; Balaram, P. (1999) Unusual stability of a multiply nicked form of Plasmodium falciparum triosephosphate isomerase Chemistry & Biology, 6 (9). pp. 625-637. ISSN 1074-5521

Balaram, P. (1999) De novo design: backbone conformational constraints in nucleating helices and β-hairpins The Journal of Peptide Research, 54 (3). pp. 195-199. ISSN 1397-002X

Bhattacharjya, S. ; Venkatraman, J. ; Balaram, P. ; Kumar, A. (1999) Fluoroalcohols as structure modifiers in peptides and proteins: hexafluoroacetone hydrate stabilizes a helical conformation of melittin at low pH The Journal of Peptide Research, 54 (2). pp. 100-111. ISSN 1397-002X

Prasanna, Variath ; Gopal, B. ; Murthy, M. R. N. ; Santi, Daniel V. ; Balaram, Padmanabhan (1999) Effect of amino acid substitutions at the subunit interface on the stability and aggregation properties of a dimeric protein: role of Arg 178 and Arg 218 at the dimer interface of thymidylate synthase Proteins: Structure, Function, and Bioinformatics, 34 (3). pp. 356-368. ISSN 0887-3585

Konnert, J. ; Karle, J. ; Karle, I. L. ; Uma, K. ; Balaram, P. (1999) Isomorphous replacement combined with anomalous dispersion in the linear equations: application to a crystal containing four nonapeptide conformers Acta Crystallographica Section D, 55 (2). pp. 448-457. ISSN 0907-4449

Kaul, Ramesh ; Balaram, P. (1999) Stereochemical control of peptide folding Bioorganic & Medicinal Chemistry, 7 (1). pp. 105-117. ISSN 0968-0896

Ray, Soumya S. ; Balaram, P. (1999) 1-Anilino-8-naphthalene-sulfonate (ANS) binding to proteins investigated by electrospray ionization mass spectrometry: correlation of gas-phase dye binding to population of molten globule states in solution Journal of Physical Chemistry B, 103 (34). pp. 7068-7072. ISSN 1089-5647

Velanker, S. S. ; Gokhale, R. S. ; Ray, Soumya S. ; Gopal, B. ; Parthasarathy, S. ; Santi, D. V. ; Balaram, P. ; Murthy, M. R. N. (1999) Disulfide engineering at the dimer interface of lactobacillus casei thymidylate synthase: crystal structure of the T155C/E188C/C244T mutant Protein Science, 8 (4). pp. 930-933. ISSN 0961-8368

Shankaramma, S. C. ; Singh, S. Kumar ; Sathyamurthy, Aruna ; Balaram, P. (1999) Insertion of methylene units into the turn segment of designed β-hairpin peptides Journal of the American Chemical Society, 121 (23). pp. 5360-5363. ISSN 0002-7863

Datta, Saumen ; Uma, Manjappara V. ; Shamala, N. ; Balaram, P. (1999) Stereochemistry of Schellman motifs in peptides: crystal structure of a hexapeptide with a C-terminus 6 →1 hydrogen bond Biopolymers, 50 (1). pp. 13-22. ISSN 0006-3525

Gokhale, Rajesh S. ; Ray, Soumya S. ; Balaram, Hemalatha ; Balaram, P. (1999) Unfolding of Plasmodium falciparum triosephosphate isomerase in urea and guanidinium chloride: evidence for a novel disulfide exchange reaction in a covalently cross-linked mutant Biochemistry, 38 (1). pp. 423-431. ISSN 0006-2960

Das, Chittaranjan ; Balaram, P. ; Raghothama, S. (1999) A four stranded β-sheet structure in a designed, synthetic polypeptide Journal of the Chemical Society - Series Chemical Communications (11). pp. 967-968. ISSN 0022-4936

Gunasekaran, K. ; Gomathi, L. ; Ramakrishnan, C. ; Chandrasekhar, J. ; Balaram, P. (1998) Conformational interconversions in peptide β-turns: analysis of turns in proteins and computational estimates of barriers Journal of Molecular Biology, 284 (5). pp. 1505-1516. ISSN 0022-2836

Gopal, B. ; Ray, Soumya S. ; Gokhale, R. S. ; Balaram, H. ; Murthy, M. R. N. ; Balaram, P. (1998) Cavity-creating mutation at the dimer interface of Plasmodium falciparum triosephosphate isomerase: restoration of stability by disulfide cross-linking of subunits Biochemistry, 38 (1). pp. 478-486. ISSN 0006-2960

Gopal, B. ; Prasanna, V. ; Parthasarathy, S. ; Santi, D. V. ; Balaram, P. ; Murthy, M. R. N. (1998) Crystals of a thymidylate synthase mutant offer insights into crystal packing and plasticity of protein-protein contacts Current Science, 75 (3). pp. 299-304. ISSN 0011-3891

Karle, Isabella L. ; Perozzo, Mary Ann ; Mishra, Vinod K. ; Balaram, Padmanabhan (1998) Crystal structure of the channel-forming polypeptide antiamoebin in a membrane-mimetic environment Proceedings of the National Academy of Sciences of the United States of America, 95 (10). pp. 5501-5504. ISSN 0027-8424

Raghothama, S. ; Chaddha, Manjula ; Banumathi, S. ; Ravikumar, Krishnan ; Velmurugan, D. ; Balaram, P. (1998) Conformational interconversions in peptide β-turns: discrimination between enantiomeric conformations by chiral perturbation Biopolymers, 45 (3). pp. 191-202. ISSN 0006-3525

Gunasekaran, K. ; Nagarajaram, H. A. ; Ramakrishnan, C. ; Balaram, P. (1998) Stereochemical punctuation marks in protein structures: glycine and proline containing helix stop signals Journal of Molecular Biology, 275 (5). pp. 917-932. ISSN 0022-2836

Bhattacharjya, Surajit ; Balaram, Padmanabhan ; Awasthi, Satish K. ; Adiga, P. Radhakantha (1998) Folded conformations of antigenic peptides from riboflavin carrier protein in aqueous hexafluoroacetone Protein Science, 7 (1). pp. 123-131. ISSN 0961-8368

Prasanna, Variath ; Bhattacharjya, Surajit ; Balaram, Padmanabhan (1998) Synthetic interface peptides as inactivators of multimeric enzymes: inhibitory and conformational properties of three fragments from lactobacillus casei thymidylate synthase Biochemistry, 37 (19). pp. 6883-6893. ISSN 0006-2960

Das, Chittaranjan ; Raghothama, S. ; Balaram, P. (1998) A designed three stranded β-sheet peptide as a multiple β-hairpin model Journal of the American Chemical Society, 120 (23). pp. 5812-5813. ISSN 0002-7863

Banerjee, Arindam ; Balaram, P. (1997) Stereochemistry of peptides and polypeptides containing omega amino acids Current Science, 73 (12). pp. 1067-1077. ISSN 0011-3891

Bhattacharjya, Surajit ; Balaram, P. (1997) Effects of organic solvents on protein structures: observation of a structured helical core in hen egg-white lysozyme in aqueous dimethylsulfoxide Proteins: Structure, Function, and Bioinformatics, 29 (4). pp. 492-507. ISSN 0887-3585

Setha, Subhendu ; Balaram, P. ; Mathew, M. K. (1997) Characterization of a 22-residue peptide derived from a designed ion channel Biochimica et Biophysica Acta: Biomembranes, 1328 (2). pp. 177-184. ISSN 0005-2736

Karle, Isabella L. ; Banerjee, Arindam ; Balaram, Padmanabhan (1997) Design of two-helix motifs in peptides: Crystal structure of a system of linked helices of opposite chirality and a model helix-linker peptide Folding and Design, 2 (4). pp. 203-210. ISSN 1359-0278

Rajan, Rahul ; Awasthi, Satish K. ; Bhattacharjya, Surajit ; Balaram, P. (1997) "Teflon-coated peptides": hexafluoroacetone trihydrate as a structure stabilizer for peptides Biopolymers, 42 (2). pp. 125-128. ISSN 0006-3525

Velanker, Sameer S. ; Ray, Soumya S. ; Gokhale, Rajesh S. ; Suma S., ; Balaram, Hemalatha ; Balaram, P. ; Murthy, M. R. N. (1997) Triosephosphate isomerase from Plasmodium falciparum: the crystal structure provides insights into antimalarial drug design Structure, 5 (6). pp. 751-761. ISSN 0969-2126

Datta, Saumen ; Shamala, N. ; Banerjee, Arindam ; Balaram, P. (1997) Hydrogen bonding in peptide helices analysis of two independent helices in the crystal structure of a peptide Boc-Val-Ala-Leu-Aib-Val-Ala-Phe-OMe The Journal of Peptide Research, 49 (6). pp. 604-611. ISSN 1397-002X

Bhattacharjya, Surajit ; Balaram, Padmanabhan (1997) Hexafluoroacetone hydrate as a structure modifier in proteins: characterization of a molten globule state of hen egg-white lysozyme Protein Science, 6 (5). pp. 1065-1073. ISSN 0961-8368

Seth, S. ; Balaram, P. ; Mathew, M. K. (1997) Helix-sheet interconversion in a synthetic pore lining peptide derived from a designed ion channel Current Science, 72 (7). pp. 509-512. ISSN 0011-3891

Datta, Saumen ; Shamala, N. ; Banerjee, Arindam ; Balaram, P. (1997) Conformational variability of Gly-Gly segments in peptides: A comparison of the crystal structures of an acyclic pentapeptide and an octapeptide Biopolymers, 41 (3). pp. 331-336. ISSN 0006-3525

Bhattacharjya, Surajit ; David, Sunil A. ; Mathan, V. I. ; Balaram, P. (1997) Polymyxin B nonapeptide: conformations in water and in the lipopolysaccharide-bound state determined by two-dimensional NMR and molecular dynamics Biopolymers, 41 (3). pp. 251-265. ISSN 0006-3525

Aparna, K. ; Krishnamurthy, S. S. ; Nethaji, M. ; Balaram, P. (1997) Amino acid-lanthanide interactions-2. The X-ray crystal structures of lanthanide and calcium complexes of 1-amino cyclohexane-1-carboxylic acid (Acc⁶), [Nd₂(Acc⁶)₆(H₂O)₆](ClO₄)₆·(H₂O)₆ (1), [Er₂(Acc⁶)₄(H₂O)₈](ClO₄)₆·(H₂O)₁₁ (2) and [Ca₅(Acc⁶)₁₂(H₂O)₆](ClO₄)₁₀·(H₂O)₄ (3) Polyhedron, 16 (3). pp. 507-514. ISSN 0277-5387

Gunasekaran, K. ; Ramakrishnan, C. ; Balaram, P. (1997) Beta-hairpins in proteins revisited: lessons for de novo design Protein Engineering Design & Selection, 10 (10). pp. 1131-1141. ISSN 1741-0126

Datta, Saumen ; Shamala, N. ; Banerjee, Arindam ; Pramanik, Animesh ; Bhattacharjya, Surajit ; Balaram, P. (1997) Characterization of helix terminating schellman motifs in peptides. Crystal structure and nuclear overhauser effect analysis of a synthetic heptapeptide helix Journal of the American Chemical Society, 119 (39). pp. 9246-9251. ISSN 0002-7863

Sujay Subbayya, I. N. ; Ray, Sowmya S. ; Balaram, P. ; Balaram, Hemalatha (1997) Metabolic enzymes as potential drug targets in Plasmodium falciparum Indian Journal of Medical Research, 106 . pp. 79-94. ISSN 0971-5916

Banerjee, A. ; Raghothama, S. ; Balaram, P. (1997) Peptide design. Helix-helix motifs in synthetic sequences Journal of the Chemical Society, Perkin Transactions 2 . pp. 2087-2094. ISSN 0300-9580

Karle, I. L. ; Kaul, R. ; Balaji Rao, R. ; Raghothama, S. ; Balaram, P. (1997) Stereochemical analysis of higher α,α-dialkylglycine containing peptides. Characterization of local helical conformations at dipropylglycine residues and observation of a novel hydrated multiple β -turn structure in crystals of a glycine rich peptide Journal of the American Chemical Society, 119 (50). pp. 12048-12054. ISSN 0002-7863

Datta, Saumen ; Kaul, Ramesh ; Balaji Rao, R. ; Shamala, N. ; Balaram, P. (1997) Stereochemistry of linking segments in the design of helix-helix motifs in peptides. Crystallographic comparison of a glycyl- dipropylglycyl-glycyl segment in a tripeptide and a 14-residue peptide Journal of the Chemical Society, Perkin Transactions 2 . pp. 1659-1664. ISSN 0300-9580

Karle, I. L. ; Pramanik, Animesh ; Banerjee, Arindam ; Bhattacharjya, Surajit ; Balaram, P. (1997) ω-amino acids in peptide design. Crystal structures and solution conformations of peptide helices containing a β-alanyl-γ-aminobutyryl segment Journal of the American Chemical Society, 119 (39). pp. 9087-9095. ISSN 0002-7863

Banerjee, Arindam ; Pramanik, Animesh ; Bhattacharjya, Surajit ; Balaram, P. (1996) Omega amino acids in peptide design: incorporation into helices Biopolymers, 39 (6). pp. 769-777. ISSN 0006-3525

Gunasekarana, K. ; Ramakrishnan, C. ; Balaram, P. (1996) Disallowed Ramachandran conformations of amino acid residues in protein structures Journal of Molecular Biology, 264 (1). pp. 191-198. ISSN 0022-2836

David, S. A. ; Awasthi, S. K. ; Wiese, A. ; Ulmer, A. J. ; Lindner, B. ; Brandenburg, K. ; Seydel, U. ; Rietschel, E. Th. ; Sonesson, A. ; Balaram, P. (1996) Characterization of the interactions of a polycationic, amphiphilic, terminally branched oligopeptide with lipid A and lipopolysaccharide from the deep rough mutant of salmonella minnesota Innate Immunity, 3 (5). pp. 369-379. ISSN 1753-4259

Prasad, Sudhanand ; Rao, R .Balaji ; Bergstrand, Hakan ; Lundquist, Britta ; Becker, Elmer L. ; Balaram, P. (1996) Conformation-activity correlations for chemotactic tripeptide analogs incorporating dialkyl residues with linear and cyclic alkyl sidechains at position 2 International Journal of Peptide and Protein Research, 48 (4). pp. 312-318. ISSN 0367-8377

Rajan, Rahul ; Balaram, P. (1996) A model for the interaction of trifluoroethanol with peptides and proteins International Journal of Peptide and Protein Research, 48 (4). pp. 328-336. ISSN 0367-8377

Banerjee, Arindam ; Raghothama, Srinivasa Rao ; Karle, Isabella L. ; Balaram, Padmanabhan (1996) Ambidextrous molecules: Cylindrical peptide structures formed by fusing left- and right-handed helices Biopolymers, 39 (3). pp. 279-285. ISSN 0006-3525

Datta, S. ; Shamala, N. ; Gurunath, R. ; Balaram, P. (1996) Observation of a mixed antiparallel and parallel β-sheet motif in the crystal structure of Boc-Ala-Ile-Aib-OMe International Journal of Peptide and Protein Research, 48 (3). pp. 209-214. ISSN 0367-8377

Karle, I. L. ; Awasthi, S. K. ; Balaram, P. (1996) A designed beta-hairpin peptide in crystals Proceedings of the National Academy of Sciences of the United States of America, 93 (16). pp. 8189-8193. ISSN 0027-8424

Karle, Isabella L. ; Rao, R. Balaji ; Kaul, Ramesh ; Prasad, Sudhanand ; Balaram, P. (1996) Peptide design: Crystal structure of a helical peptide module attached to a potentially nonhelical amino terminal segment Biopolymers, 39 (1). pp. 75-83. ISSN 0006-3525

Karle, Isabella L. ; Gurunath, R. ; Prasad, Sudhanand ; Rao, R. Balaji ; Balaram, P. (1996) Crystal structures of a nonapeptide helix containing α,α-di-n-butylglycine (Dbg), Boc-G1y-Dbg-Ala-Val-Ala-Leu-Aib-Val-Leu-OMe International Journal of Peptide and Protein Research, 47 (5). 376 - 382. ISSN 0367-8377

Karle, Isabella L. ; Banerjee, Arindam ; Bhattacharjya, Surajit ; Balaram, P. (1996) Solid state and solution conformations of a helical peptide with a central gly-gly segment Biopolymers, 38 (4). pp. 515-526. ISSN 0006-3525

Karle, I. L. ; Flippen-Anderson, J. L. ; Uma, K. ; Balaram, P. (1996) Effects of end group and aggregation on helix conformation: Crystal structure of Ac-(Aib-Val-Ala-Leu)₂-Aib-OMe Journal of Peptide Science, 2 (2). pp. 106-116. ISSN 1075-2617

Agarwalla, Sanjay ; Gokhale, Rajesh S. ; Balaram, P. ; Santi, Daniel V. (1996) Covalent tethering of the dimer interface annuls aggregation in thymidylate synthase Protein Science, 5 (2). pp. 270-277. ISSN 0961-8368

Awasthi, Satish Kumar ; Raghothama, Srinivasa Rao ; Balaram, Padmanabhan (1996) Conformational variability in short acyclic peptides. Stabilization of multiple β-turn structures in organic solvents Journal of the Chemical Society, Perkin Transactions 2, 2 . pp. 2701-2706. ISSN 0300-9580

Gokhale, Rajesh S. ; Agarwalla, Sanjay ; Santi, Daniel V. ; Balaram, Padmanabhan (1996) Covalent reinforcement of a fragile region in the dimeric enzyme thymidylate synthase stabilizes the protein against chaotrope-induced unfolding Biochemistry, 35 (22). pp. 7150-7158. ISSN 0006-2960

Banerjee, Arindam ; Datta, S. ; Pramanik, Animesh ; Shamala, N. ; Balaram, P. (1996) Heterogeneity and stability of helical conformations in peptides: crystallographic and NMR studies of a model heptapeptide Journal of the American Chemical Society, 118 (40). pp. 9477-9483. ISSN 0002-7863

Raghothama, S. ; Chaddha, M. ; Balaram, P. (1996) NMR analysis of a conformational transition in an acyclic peptide. Model system for studying helix unfolding Journal of Physical Chemistry, 100 (50). pp. 19666-19671. ISSN 0022-3654

S. K., Awasthi ; S., Raghothama ; Balaram, P. (1995) A designed β-hairpin peptide Biochemical and Biophysical Research Communications, 216 (1). pp. 375-381. ISSN 0006-291X

Gunasekaran, K. ; Ramakrishnan, C. ; Balaram, P. (1995) Stereochemical analysis of the antigenic tip of the V3 loop peptide of HIV-1 gp120 International Journal of Peptide and Protein Research, 46 (5). pp. 359-363. ISSN 0367-8377

David, S. A. ; Mathan, V. I. ; Balaram, P. (1995) Interactions of linear dicationic molecules with lipid A: structural requisites for optimal binding affinity Innate Immunity, 2 (5). pp. 325-336. ISSN 1753-4259

Sankarapandi, S. ; Sukumar, M. ; Balaram, P. ; Manoharan, P. T. (1995) Biradicals as ESR probes of conformations in model β-turn peptides Biochemical and Biophysical Research Communications, 213 (2). pp. 439-446. ISSN 0006-291X

David, S. A. ; Balaram, P. ; Mathan, V. I. (1995) Characterization of the interaction of lipid A and lipopolysaccharide with human serum albumin: implications for an endotoxin carrier function for albumin Innate Immunity, 2 (2). pp. 99-106. ISSN 1753-4259

Gurunath, Ramanathan ; Beena, T. K. ; Adiga, P. R. ; Balaram, P. (1995) Enhancing peptide antigenicity by helix stabilization FEBS Letters, 361 (2-3). pp. 176-178. ISSN 0014-5793

Prasad, Sudhanand ; Rao, R. Balaji ; Balaram, P. (1995) Contrasting solution conformations of peptides containing α,α-dialkylated residues with linear and cyclic side chains Biopolymers, 35 (1). pp. 11-20. ISSN 0006-3525

Balaram, P. (1995) β-Turn conformations in crystal structures of model peptides containing α,α-Di-n-propylglycine and α,α-Di-n-butylglycine Biopolymers, 35 (1). pp. 1-9. ISSN 0006-3525

Gurunath, R. ; Balaram, P. (1995) A nonhelical, multiple β-turn conformation in a glycine-rich heptapeptide fragment of trichogin A IV containing a single central α-aminoisobutyric acid residue Biopolymers, 35 (1). pp. 21-29. ISSN 0006-3525

Karle, Isabella L. ; Gurunath, R. ; Prasad, Sudhanand ; Kaul, Ramesh ; Rao, R. Balaji ; Balaram, P. (1995) Peptide design. Structural evaluation of potential nonhelical segments attached to helical modules Journal of the American Chemical Society, 117 (38). pp. 9632-9637. ISSN 0002-7863

Aparna, K. ; Krishnamurthy, S. S. ; Nethaji, M. ; Balaram, P. (1994) Amino acid-lanthanide interactions. Crystal structures of lanthanide complexes of α- amino isobutyric acid (Aib), [La₂(Aib)₄(H₂O)₈](ClO₄) ₆ and [Pr₂(Aib)₄(H₂O)₈]Cl₆·H₂O Polyhedron, 13 (21). pp. 2993-2997. ISSN 0277-5387

Karle, I. L. ; Flippen-Anderson, J. L. ; Uma, K. ; Balaram, P. (1994) Hydration and distortion of peptide helices in crystals. α-helical structure of a dodecapeptide, Boc-(Ala-Leu-Aib)4-OMe International Journal of Peptide & Protein Research, 44 (5). pp. 491-498. ISSN 0367-8377

Karle, Isabella L. ; Flippen-Anderson, Judith L. ; Gurunath, R. ; Balaram, P. (1994) Facile transition between 3₁₀- and α-helix: structures of 8-, 9-, and 10-residue peptides containing the -(Leu-Aib-Ala)₂-Phe-Aib-fragment Protein Science, 3 (9). pp. 1547-1555. ISSN 0961-8368

Gurunath, R. ; Balaram, P. (1994) Incorporation of a potentially helix-breaking D-Phe-Pro sequence into the center of a right-handed 16-residue peptide helix Biochemical and Biophysical Research Communications, 202 (1). pp. 241-245. ISSN 0006-291X

Karle, Isabella L. ; Flippen-Anderson, Judith L. ; Agarwalla, S. ; Balaram, P. (1994) Conformation of the flexible bent helix of Leu¹-zervamicin in crystal C and a possible gating action for ion passage Biopolymers, 34 (6). pp. 721-735. ISSN 0006-3525

David, Sunil A. ; Bechtel, Bethany ; Annaiah, Cariappa ; Mathan, V. I. ; Balaram, P. (1994) Interaction of cationic amphiphilic drugs with lipid A: Implications for development of endotoxin antagonists Biochimica et Biophysica Acta (BBA) - Lipids and Lipid Metabolism, 1212 (2). pp. 167-175. ISSN 0005-2760

Prasad, S. ; Mitra, S. ; Subramanian, E. ; Velmurugan, D. ; Rao, R. B. ; Balaram, P. (1994) Coexistence of folded and extended conformations of a tripeptide containing α,α-di-n-propylglycine in crystals Biochemical and Biophysical Research Communications, 198 (2). pp. 424-430. ISSN 0006-291X

Gokhale, Rajesh S. ; Agarwalla, Sanjay ; Francis, V. S. ; Santi, Daniel V. ; Balaram, P. (1994) Thermal stabilization of thymidylate synthase by engineering two disulfide bridges across the dimer interface Journal of Molecular Biology, 235 (1). pp. 89-94. ISSN 0022-2836

Aparna, K. ; Balaram, P. ; Krishnamurthy, S. S. ; Nethaj, M. (1994) Peptide-lanthanide interactions International Journal of Peptide and Protein Research, 43 (1). pp. 19-22. ISSN 0367-8377

Karle, Isabella L. ; Rao, R. Balaji ; Prasad, Sudhanand ; Kaul, Ramesh ; Balaram, P. (1994) Nonstandard amino acids in conformational design of peptides. Helical structures in crystals of 5-10 residue peptides containing dipropylglycine and dibutylglycine Journal of the American Chemical Society, 116 (23). pp. 10355-10361. ISSN 0002-7863

Schellenberger, U. ; Balaram, P. ; Francis, V. S. N. K. ; Shoichet, B. K. ; Santi, Daniel V. (1994) Partial restoration of activity to Lactobacillus casei thymidylate synthase following inactivation by domain deletion Biochemistry, 33 (18). pp. 5623-5629. ISSN 0006-2960

Srinivasan, N. ; Anuradha, V. S. ; Ramakrishnan, C. ; Sowdhamini, R. ; Balaram, P. (1993) Conformational characteristics of asparaginyl residues in proteins International Journal of Peptide and Protein Research, 44 (2). pp. 112-122. ISSN 0367-8377

Uma, K. ; Kishore, R. ; Balaram, P. (1993) Stereochemical constraints in peptide design: analysis of the influence of a disulfide bridge and an α-aminoisobutyryl residue on the conformation of a hexapeptide Biopolymers, 33 (6). pp. 865-871. ISSN 0006-3525

Karle, Isabella L. ; Flippen-Anderson, Judith L. ; Uma, K. ; Balaram, P. (1993) Unfolding of an α-helix in peptide crystals by solvation: conformational fragility in a heptapeptide Biopolymers, 33 (5). pp. 827-837. ISSN 0006-3525

Nagarajaram, H. A. ; Sowdhamini, R. ; Ramakrishnan, C. ; Balaram, P. (1993) Termination of right handed helices in proteins by residues in left handed helical conformations FEBS Letters, 321 (1). pp. 79-83. ISSN 0014-5793

Karle, I. L. ; Flippen-Anderson, J. L. ; Uma, K. ; Balaram, P. (1993) Accommodation of a D-Phe residue into a right-handed 310-helix: Structure of Boc-D-Phe-(Aib)4-Gly-L-Leu-(Aib)2-Ome, an analogue of the amino terminal segment of antiamoebins and emerimicins Biopolymers, 33 (3). pp. 401-407. ISSN 0006-3525

Sansom, M. S. P. ; Balaram, P. ; Karle, I. L. (1993) Ion channel formation by zervamicin-IIB European Biophysics Journal, 21 (6). pp. 369-383. ISSN 0175-7571

Sowdhamini, R. ; Ramakrishnan, C. ; Balaram, P. (1993) Modelling multiple disulphide loop containing polypeptides by random conformation generation. The test cases of α-conotoxin GI and edothelin I Protein Engineering Design & Selection, 6 (8). pp. 873-882. ISSN 1741-0126

Karle, I. L. ; Flippen-Anderson, J. L. ; Uma, K. ; Balaram, P. (1993) Peptide mimics for structural features in proteins. Crystal structures of three heptapeptide helices with a C-terminal 6→1 hydrogen bond International Journal of Peptide & Protein Research, 42 . pp. 401-410. ISSN 0367-8377

David, S. A. ; Balasubramanian, K. A. ; Mathan, V. I. ; Balaram, P. (1992) Analysis of the binding of polymyxin B to endotoxic lipid A and core glycolipid using a fluorescent displacement probe Biochimica et Biophysica Acta (BBA) - Lipids and Lipid Metabolism, 1165 (2). pp. 147-152. ISSN 0005-2760

Bardi, R. ; Piazzesi, A. M. ; Crisma, M. ; Toniolo, C. ; Sukumar, M. ; Balaram, P. (1992) Structure of N-tert-butyloxycarbonyl α-aminoisobutyryl-DL-pipecolyl α-aminoisobutyric acid methyl ester Acta Crystallographica Section C, 48 (9). pp. 1645-1648. ISSN 0108-2701

Agarwalla, S. ; Mellor, I. R. ; Sansom, M. S. P. ; Karle, I. L. ; Flippen-Anderson, J. L. ; Uma, K. ; Krishna, K. ; Sukumar, M. ; Balaram, P. (1992) Zervamicins, a structurally characterised peptide model for membrane ion channels Biochemical and Biophysical Research Communications, 186 (1). pp. 8-15. ISSN 0006-291X

Balaram, P. ; Krishna, K. ; Sukumar, M. ; Mellor, I. R. ; Sansom, Mark S. P. (1992) The properties of ion channels formed by zervamicins European Biophysics Journal, 21 (2). pp. 117-128. ISSN 0175-7571

Sowdhamini, R. ; Srinivasan, N. ; Ramakrishnan, C. ; Balaram, P. (1992) Orthogonal ββ motifs in proteins Journal of Molecular Biology, 223 (4). pp. 845-851. ISSN 0022-2836

David, S. A. ; Mathan, V. I. ; Balaram, P. (1992) Interaction of melittin with endotoxic lipid A Biochimica et Biophysica Acta (BBA) - Lipids and Lipid Metabolism, 1123 (3). pp. 269-274. ISSN 0005-2760

Bardi, R. ; Piazzesi, A. M. ; Crisma, M. ; Toniolo, C. ; Balaram, P. ; Sukumar, M. (1992) Crystal structure of (S)-pipecolic acid (2R,3R)-tartrate, C₁₀H₁₇NO₈ Zeitschrift für Kristallographie, 202 (1-2). pp. 174-176. ISSN 0044-2968

Bardi, R. ; Piazzesi, A. M. ; Crisma, M. ; Toniolo, C. ; Balaram, P. ; Sukumar, M. (1992) Crystal structure of N-tert-butyloxycarbonyl-(S)-pipecolyl-α-aminoisobutyric acid, C₁₅H₂₆N₂O₅ Zeitschrift fur Kristallographie, 202 (1-2). pp. 171-173. ISSN 0044-2968

Bardi, R. ; Piazzesi, A. M. ; Crisma, M. ; Toniolo, C. ; Sudhanand, ; Balaji Rao, R. ; Balaram, P. (1992) Crystal structure of tert-butyloxycarbonyl-α-amino-isobutyryl-C-α,α-di-n-butylglycyl-methylester, C₂₀H₃₈N₂O₅ Zeitschrift für Kristallographie, 202 (3-4). pp. 302-305. ISSN 0044-2968

Karle, Isabella L. ; Flippen-Anderson, Judith L. ; Sukumar, Muppalla ; Balaram, Padmanabhan (1992) Differences in hydration and association of helical Boc-Val-Ala-Leu-Aib-Val-Ala-Leu-(Val-Ala-Leu-Aib)2-OMe·xH2O in two crystalline polymorphs Journal of Medicinal Chemistry, 35 (21). pp. 3885-3889. ISSN 0022-2623

Karle, Isabella L. ; Flippen-Anderson, Judith L. ; Sukumar, M. ; Balaram, P. (1992) Helix packing of leucine-rich peptides: A parallel leucine ladder in the structure of Boc-Aib-Leu-Aib-Aib-Leu-Leu-Leu-Aib-Leu-Aib-OMe Proteins: Structure, Function, and Bioinformatics, 12 (4). pp. 324-330. ISSN 0887-3585

David, A. S. A. ; Balaram, P. ; Mathan, V. I. (1992) Interaction of basic amphiphilic polypeptide antimicrobials, gramicidin S, tyrocidin and efrapeptin with endotoxic lipid Medical Microbiology Letters, 2 (1). pp. 42-47. ISSN 1018-4627

Balaram, Padmanabhan (1992) Non-standard amino acids in peptide design and protein engineering Current Opinion in Structural Biology, 2 (6). pp. 845-851. ISSN 0959-440X

Balaram, P. (1992) The design and construction of synthetic protein mimics Pure and Applied Chemistry, 64 (8). pp. 1061-1066. ISSN 0033-4545

Valle, G. ; Bardi, R. ; Piazzesi, A. M. ; Crisma, M. ; Toniolo, C. ; Cavicchioni, G. ; Uma, K. ; Balaram, P. (1991) Crystal state conformation of three model monomer units for the β-bend ribbon structure Biopolymers, 31 (14). pp. 1669-1676. ISSN 0006-3525

Valle, G. ; Crisma, M. ; Toniolo, C. ; Sudhanand, ; Balaji Rao, R. ; Sukumar, M. ; Balaram, P. (1991) Stereochemistry of peptides containing 1-aminocycloheptane-1-carboxylic acid (Ac₇c) International Journal of Peptide & Protein Research, 38 (6). pp. 511-518. ISSN 0367-8377

Karle, I. L. ; Flippen-Anderson, J. L. ; Agarwalla, S. ; Balaram, P. (1991) Crystal structure of [Leu1]zervamicin, a membrane ion-channel peptide: implications for gating mechanisms Proceedings of the National Academy of Sciences of the United States of America, 88 (12). pp. 5307-5311. ISSN 0027-8424

Piazzesi, Anna Maria ; Bardi, Renaato ; Crisma, Marco ; Banora, Gian Maria ; Toniolo, Claudio ; Chauhan, Virander Singh ; Kaur, Paramjeet ; Uma, Kuchibhotla ; Balaram, Padmanabhan (1991) Conformational restrictions of peptides via backbone modification: solution and crystal-state analysis of Boc-L-Pro-Δ^ZPhe-Gly-NH₂ Gazzetta Chimica Italiana, 121 . pp. 1-7. ISSN 0016-5603

Karle, Isabella L. ; Flippen-Anderson, Judith L. ; Sukumar, M. ; Uma, K. ; Balaram, P. (1991) Modular design of synthetic protein mimics. Crystal structure of two seven-residue helical peptide segments linked by .epsilon.-aminocaproic acid Journal of the American Chemical Society, 113 (10). pp. 3952-3956. ISSN 0002-7863

Karle, Isabella L. ; Flippen-Anderson, Judith L. ; Uma, K. ; Balaram, P. (1990) Helix aggregation in peptide crystals: occurrence of either all parallel or antiparallel packing motifs for α-helices in polymorphs of Boc-Aib-Ala-Leu-Ala-Leu-Aib-Leu-Ala-Leu-Aib-OMe Biopolymers, 29 (14). pp. 1835-1845. ISSN 0006-3525

Karle, I. L. ; Flippen-Anderson, J. L. ; Uma, K. ; Balaram, P. (1990) Parallel zippers formed by alpha-helical peptide columns in crystals of Boc-Aib-Glu(OBzl)-Leu-Aib-Ala-Leu-Aib-Ala-Lys(Z)-Aib-OMe Proceedings of the National Academy of Sciences of the United States of America, 87 (20). pp. 7921-7925. ISSN 0027-8424

Karle, I. L. ; Flippen-Anderson, J. L. ; Uma, K. ; Balaram, P. (1990) Helix construction using α-aminoisobutyryl residues in a modular approach to synthetic protein design. Conformational properties of an apolar decapeptide in two different crystal forms and in solution Current Science, 59 (17-18). pp. 875-885. ISSN 0011-3891

Karle, Isabella L. ; Flippen-Anderson, Judith L. ; Uma, K. ; Balaram, Hemalatha ; Balaram, P. (1990) Peptide design: influence of a guest Aib-Pro segment on the stereochemistry of an Oligo-Val sequence - solution conformations and crystal structure of Boc-(Val)₂-Aib-Pro-(Val)₃-OMe Biopolymers, 29 (10-11). pp. 1433-1442. ISSN 0006-3525

Srinivasan, N. ; Sowdhamini, R. ; Ramakrishnan, C. ; Balaram, P. (1990) Conformations of disulfide bridges in proteins International Journal of Peptide and Protein Research, 36 (2). pp. 147-155. ISSN 0367-8377

Karle, I. L. ; Flippen-Anderson, J. L. ; Sukumar, M. ; Balaram, P. (1990) Parallel and antiparallel aggregation of α helices International Journal of Peptide and Protein Research, 35 (6). pp. 518-526. ISSN 0367-8377

Balaram, Hemalatha ; Uma, K. ; Balaram, P. (1990) Synthetic peptide models for protein secondary structures β-sheet formation in acyclic cystine peptides International Journal of Peptide and Protein Research, 35 (6). pp. 495-500. ISSN 0367-8377

Karle, Isabella L. ; Flippen-Anderson, Judith L. ; Uma, K. ; Balaram, P. (1990) Apolar peptide models for conformational heterogeneity, hydration, and packing of polypeptide helices: crystal structure of hepta- and octapeptides containing α-aminoisobutyric acid Proteins: Structure, Function, and Bioinformatics, 7 (1). pp. 62-73. ISSN 0887-3585

Toniolo, C. ; Crisma, M. ; Valle, G. ; Bonora, G. M. ; Polinelli, S. ; Becker, E. L. ; Freer, R. J. ; Balaram, P. (1990) Conformationally restricted formyl-methionyl tripeptide chemoattractants Proceedings of the 11th American Peptide Symposium . pp. 630-631.

Karle, I. L. ; Flippen-Anderson, J. L. ; Uma, K. ; Balaram, P. (1990) Hydration of helix backbones of hydrophobic peptides Proceedings of the 11th American Peptide Symposium . pp. 544-547.

Karle, Isabella L. ; Flippen-Anderson, Judith L. ; Uma, K. ; Sukumar, M. ; Balaram, P. (1990) Modular design of synthetic protein mimics. Crystal structures, assembly, and hydration of two 15- and 16-residue apolar, leucyl-rich helical peptides Journal of the American Chemical Society, 112 (25). pp. 9350-9356. ISSN 0002-7863

Karle, Isabella L. ; Balaram, Padmanabhan (1990) Structural characteristics of α-helical peptide molecules containing aib residues Biochemistry, 29 (29). pp. 6747-6756. ISSN 0006-2960

Krishna, K. ; Sukumar, M. ; Balaram, P. (1990) Structural chemistry and membrane modifying activity of the fungal polypeptides zervamicins, antiamoebins and efrapeptins Pure and Applied Chemistry, 62 (7). pp. 1417-1420. ISSN 0033-4545

Karle, Isabella L. ; Flippen-Anderson, Judith L. ; Uma, K. ; Balaram, P. (1990) Synthetic peptide helices in crystals: structure and antiparallel and skewed packing motifs for α-helices in two isomeric decapeptides Biopolymers, 30 (7-8). pp. 719-731. ISSN 0006-3525

Uma, K. ; Balaram, P. (1989) Peptide design: an analysis of studies using α-aminoisobutyric acid (Aib) and Z α β -dehydrophenylalanine (Δ^Z-Phe) Indian Journal of Chemistry - Section B: Organic and Medicinal Chemistry, 28 . pp. 705-710. ISSN 0376-4699

Karle, I. L. ; Flippen-Anderson, J. L. ; Kishore, R. ; Balaram, P. (1989) Cystine peptides antiparallel β-sheet conformation of the cyclic biscystine pep tide [Boc-Cys-Ala-Cys-NHCH₃]₂ International Journal of Peptide and Protein Research, 34 (1). pp. 37-41. ISSN 0367-8377

Uma, K. ; Balaram, P. ; Kaur, P. ; Sharma, Ashwani Kumar ; Chauhan, V. S. (1989) Conformations of peptides containing Z-α,β-dehydroleucine (Δ^ZLeu). A comparison of Boc-Pro-Δ^ZLeu-Gly-NHEt and Boc-Pro-Δ^ZPhe-Gly-NHEt International Journal of Biological Macromolecules, 11 (3). pp. 169-17. ISSN 0141-8130

Chauhan, V. S. ; Uma, K. ; Kaur, Paramjeet ; Balaram, P. (1989) Conformations of dehydrophenylalanine containing peptides: nmr studies of an acyclic hexapeptide with two Δ^z-Phe residues Biopolymers, 28 (3). pp. 763-771. ISSN 0006-3525

Karle, I. L. ; Flippen-Anderson, J. L. ; Uma, K. ; Balaram, P. (1989) Solvated helical backbones: X-ray diffraction study of Boc-Ala-Leu-Aib-Ala-Leu-Aib-OMe · H₂O Biopolymers, 28 (3). pp. 773-781. ISSN 0006-3525

Karle, I. L. ; Flippen-Anderson, J. L. ; Uma, K. ; Balaram, H. ; Balaram, P. (1989) Alpha-helix and mixed 3(10)/alpha-helix in cocrystallized conformers of Boc-Aib-Val-Aib-Aib-Val-Val-Val-Aib-Val-Aib-OMe PNAS, 86 (3). pp. 765-769. ISSN 0027-8424.

Raghothama, S. ; Ramakrishnan, C. ; Balasubramanian, D. ; Balaram, P. (1989) Conformational analysis of cyclolinopeptide A, a cyclic nonapeptide: nuclear overhauser effect and energy minimization studies Biopolymers, 28 (2). pp. 573-588. ISSN 0006-3525

Kaur, Paramjeet ; Uma, K. ; Balaram, P. ; Chauhan, V. S. (1989) Synthetic and conformational studies on dehydrophenylalanine containing model peptides International Journal of Peptide and Protein Research, 33 (2). pp. 103-109. ISSN 0367-8377

Moretto, V. ; Crisma, M. ; Bonora, G. M. ; Toniolo, C. ; Balaram, Hemalatha ; Balaram, P. (1989) Comparison of the effect of five guest residues on the β-sheet conformation of host (L-val)n oligopeptides Macromolecules, 22 (7). pp. 2939-2944. ISSN 0024-9297

Toniolo, C. ; Crisma, M. ; Valle, G. ; Bonora, G. M. ; Polinelli, S. ; Becker, E. L. ; Freer, R. J. ; Sudhanand, ; Balaji Raao, R. ; Balaram, P. ; Sukumar, M. (1989) Conformationally restricted formyl methionyl tripeptide chemoattractants: a three-dimensional structure-activity study of analogs incorporating a C ^α,α-dialkylated glycine at position 2 Peptide Research, 2 (4). pp. 275-281. ISSN 1040-5704

Karle, Isabella L. ; Flippen-Anderson, Judith L. ; Uma, K. ; Balaram, P. (1989) Modular design of synthetic protein mimics. characterization of the helical conformation of a 13-residue peptide in crystals Biochemistry, 26 (16). pp. 6696-6701. ISSN 0006-2960

Toniolo, C. ; Bardi, R. ; Piazzesi, A. M. ; Crisma, M. ; Balaram, P. ; Sukumar, M. ; Paul, P. K. C. (1989) Preferred conformations of pipecolic acid-containing peptides Proceedings of the 20th European Peptide Symposium . pp. 477-479.

Sowdhamini, R. ; Srinivasan, N. ; Shoichet, Brian ; Santi, Daniel V. ; Ramakrishnan, C. ; Balaram, P. (1989) Stereochemical modeling of disulfide bridges. Criteria for introduction into proteins by site-directed mutagenesis Protein Engineering Design & Selection, 3 (2). pp. 95-103. ISSN 1741-0126

Karle, Isabella L. ; Flippen-Anderson, Judith L. ; Uma, K. ; Balaram, P. (1988) Aggregation studies in crystals of apolar helical peptides: Boc-Aib-Val-Ala-Leu-Aib-Val-Ala-Leu-Aib-OMe International Journal of Peptide and Protein Research, 32 (6). pp. 536-543. ISSN 0367-8377

Das, Manoj K. ; Krishna, K. ; Balaram, P. (1988) Membrane Modifying activity of four peptide components of antiamoebin, a microheterogeneous fungal antibiotic Indian Journal of Biochemistry & Biophysics, 25 . pp. 560-565. ISSN 0301-1208

Chandrasekhar, K. ; Das, Manoj K. ; Anil Kumar, ; Balaram, P. (1988) Molecular conformation of alamethicin in dimethylsulfoxide solution. A two-dimensional n.m.r. study International Journal of Peptide and Protein Research, 32 (3). pp. 167-174. ISSN 0367-8377

Karle, Isabella L. ; Flippen-Anderson, Judith L. ; Sukumar, Mupalla ; Balaram, Padmanabhan (1988) Monoclinic polymorph of Boc-Trp-Ile-Ala-Aib-Ile-Val-Aib-Leu-Aib-Pro-OMe(anhydrous) International Journal of Peptide and Protein Research, 31 (6). pp. 567-576. ISSN 0367-8377

Antony Raj, P. ; Das, Manoj K. ; Balaram, P. (1988) Conformations and mitochondrial uncoupling activity of synthetic emerimicin fragments Biopolymers, 27 (4). pp. 683-701. ISSN 0006-3525

Chauhan, V. S. ; Uma, K. ; Kumar, Arun ; Balaram, P. (1988) Conformations of dehydrophenylalanine containing peptides nuclear overhauser effect study of two acyclic tetrapeptides International journal of peptide and protein research, 31 (4). pp. 349-358. ISSN 0367-8377

Uma, K. ; Balaram, H. ; Raghothama, S. ; Balaram, P. (1988) Simultaneous observation of positive and negative nuclear overhauser effects in oligopeptides due to segmental motion Biochemical and Biophysical Research Communications, 151 (1). pp. 153-157. ISSN 0006-291X

Karle, I. L. ; Flippen-Anderson, Judith ; Uma, K. ; Balaram, P. (1988) Aqueous channels within apolar peptide aggregates: solvated helix of the α-aminoisobutyric acid (Aib)-containing peptide Boc-(Aib-Ala-Leu)₃-Aib-OMe.2H₂O.CH₃OH in crystals Proceedings of the National Academy of Sciences of the United States of America, 85 (2). pp. 299-303. ISSN 0027-8424

Chauhan, V. S. ; Kaur, Paramjeet ; Sen, Nirupa ; Uma, K. ; Jacob, Jose ; Balaram, P. (1988) Conformational analysis of an active chemotactic peptide analog containing z-dehydrophbnylalanine at position 3 Tetrahedron, 44 (8). pp. 2359-2366. ISSN 0040-4020

Valle, Giovanni ; Crisma, Marco ; Toniolo, Claudio ; Sen, Nirupa ; Sukumar, Muppalla ; Balaram, Padmanabhan (1988) Crystallographic characterization of the conformation of the 1-aminocyclohexane-1-carboxylic acid residue in simple derivatives and peptides Journal of Chemical Soceity, Perkin Transactions 2 . pp. 393-398. ISSN 1472-779X

Karle, Isabella L. ; Kishore, R. ; Raghothama, S. ; Balaram, P. (1988) Cyclic cystine peptides. Antiparallel β-sheet conformation for the 20-membered ring in Boc-Cys-Val-Aib-Ala-Leu-Cys-NHMe Journal of the American Chemical Society, 110 (6). pp. 1958-1963. ISSN 0002-7863

Bardi, R. ; Piazzesi, A. M. ; Toniolo, C. ; Sen, N. ; Balaram, H. ; Balaram, P. (1988) Structures of pivaloyl-L-prolyl-N-methyl-D-phenylalaninamide and pivaloyl-L-prolyl-N-methyl-D-valinamide Acta Crystallographica Section C, 44 . pp. 1972-1976. ISSN 0108-2701

Kishore, R. ; Raghothama, S. ; Balaram, P. (1988) Synthetic peptide models for the redox-active disulfide loop of glutaredoxin. Conformational studies Biochemistry, 27 (7). pp. 2462-2471. ISSN 0006-2960

Ramakrishnan, C. ; Sukumar, M. ; Balaram, P. (1987) Nuclear overhauser effects as probes of peptide structure. A diagnostic for left-handed helical conformations Biochemical and Biophysical Research Communications, 149 (3). pp. 953-959. ISSN 0006-291X

Purana, Kasturi Lahiri ; Raghothama, S. ; Balaram, P. (1987) A ¹H-NMR study of bilirubin IXα solubilization by cholate micelles: application of nuclear Overhauser effects Biochimica et Biophysica Acta (BBA) - Lipids and Lipid Metabolism, 922 (1). pp. 67-77. ISSN 0005-2760

Kishore, R. ; Ishizaki, H. ; Tu, A. T. ; Ravi, A. ; Balaram, P. (1987) Disulfide conformations in 14-membered loops investigated by Raman spectroscopy and circular dichroism International Journal of Peptide & Protein Research, 30 (4). pp. 474-480. ISSN 0367-8377

Karle, Isabella L. ; Flippen-Anderson, Judith ; Sukumar, Muppalla ; Balaram, P. (1987) Conformation of a 16-residue zervamicin IIA analog peptide containing three different structural features: 3₁₀-helix, α-helix, and β-bend ribbon Proceedings of the National Academy of Sciences of the United States of America, 84 (15). pp. 5087-5091. ISSN 0027-8424

Kishore, R. ; Raghothama, S. ; Balaram, P. (1987) Cystine peptides: the intramolecular antiparallel β-sheet conformation of a 20-membered cyclic peptide disulfide Biopolymers, 26 (6). pp. 873-891. ISSN ISSN

Puranam, Kasturi Lahiri ; Balaram, P. (1987) Solubilization of bilirubin by cholate micelles. Spectroscopic and gel permeation studies Proceedings of the Indian Academy of Sciences - Chemical Sciences, 98 (5-6). pp. 453-468. ISSN 0253-4134

Puranam, Kasturi Lahiri ; Balaram, P. (1987) Spectroscopic studies on the interaction of bilirubin with symmetrical alkyl diamines Journal of Biosciences, 11 (1-4). pp. 485-493. ISSN 0250-5991

Chauhan, V. S. ; Sharma, Ashwani K. ; Uma, K. ; Paul, P. K. C. ; Balaram, P. (1987) Conformations of dehydrophenylalanine containing peptides: NMR studies on three tripeptides with a central dehydrophenylalanyl residue International journal of peptide and protein research, 29 (1). pp. 126-133. ISSN 0367-8377

Kishore, R. ; Raghothama, S. ; Balaram, P. (1987) Cystine peptides. Spectroscopic studies on the conformation of a cyclic pentapeptide disulfide International Journal of Peptide & Protein Research, 29 . pp. 381-391. ISSN 0367-8377

Karle, Isabella L. ; Sukumar, Muppalla ; Balaram, P. (1986) Parallel packing of α-helices in crystals of the zervamicin IIA analog Boc-Trp-Ile-Ala-Aib-Ile-Val-Aib-Leu-Aib-Pro-OMe.2H₂0 Proceedings of the National Academy of Sciences of the United States of America, 83 (24). pp. 9284-9288. ISSN 0027-8424

Bardi, R. ; Piazzesi, A. M. ; Toniolo, C. ; Sukumar, M. ; Balaram, P. (1986) Stereochemistry of peptides containing 1-aminocyclopentanecarboxylic acid (Acc⁵): solution and solid-state conformations of Boc-Acc⁵-Acc⁵-NHMe Biopolymers, 25 (9). pp. 1635-1644. ISSN 0006-3525

Bardia, R. ; Piazzesia, A. M. ; Tonioloa, C. ; Raj, P. Antony ; Raghothama, S. ; Balaram, P. (1986) Conformations of the amino aterminal tetrapeptide of emerimicins and antiamoebins in solution and in the solid state International Journal of Biological Macromolecules, 8 (4). pp. 201-206. ISSN 0141-8130

Sampath, D. S. ; Balaram, P. (1986) Resolution of racemic gossypol and interaction of individual enantiomers with serum albumins and model peptides Biochimica et Biophysica Acta: General Subjects, 882 (2). pp. 183-186. ISSN 0304-4165

Bardi, R. ; Piazzesi, A. M. ; Toniolo, C. ; Antony Raj, P. ; Raghothama, S. ; Balaram, P. (1986) Solid state and solution conformation of Boc-L-Met-Aib-L-Phe-OMe. Beta-turn conformation of a sequence related to an active chemotactic peptide analog International Journal of Peptide & Protein Research, 27 (3). pp. 229-238. ISSN 0367-8377

Balaram, Hemalatha ; Sukumar, M. ; Balaram, P. (1986) Stereochemistry of α-aminoisobutyric acid peptides in solution: conformations of decapeptides with a central triplet of contiguous L-amino acids Biopolymers, 25 (11). pp. 2209-2223. ISSN 0006-3525

Das, Manoj K. ; Raghothama, S. ; Balaram, P. (1986) Membrane channel forming polypeptides. Molecular conformation and mitochondrial uncoupling activity of antiamoebin, an α-aminoisobutyric acid containing peptide Biochemistry, 25 (22). pp. 7110-7117. ISSN 0006-2960

Sahal, Dinkar ; Balaram, P. (1986) Peptide models of electrostatic interactions in proteins: NMR studies on two β-turn tetrapeptides containing Asp-His and Asp-Lys salt bridges Biochemistry, 25 (20). pp. 6004-6013. ISSN 0006-2960

Paul, P. K. C. ; Sukumar, M. ; Bardi, R. ; Piazzesi, A. M. ; Valle, G. ; Toniolo, C. ; Balaram, P. (1986) Stereochemically constrained peptides. Theoretical and experimental studies on the conformations of peptides containing 1-aminocyclohexanecarboxylic acid Journal of the American Chemical Society, 108 (20). pp. 6363-6370. ISSN 0002-7863

Sampath, D. S. ; Balaram, P. (1986) A rapid procedure for the resolution of racemic gossypol Journal of the Chemical Society - Series Chemical Communications, 1986 (9). pp. 649-650. ISSN 0022-4936

Kishore, R. ; Anil Kumar, ; Balaram, P. (1985) Cystine peptides. The anti parallel β-sheet conformation of two synthetic cyclic bi(cystine peptides) Journal of the American Chemical Society, 107 (26). pp. 8019-8023. ISSN 0002-7863

Kishore, R. ; Balaram, P. (1985) Stabilization of γ-turn conformations in peptides by disulfide bridging Biopolymers, 24 (11). pp. 2041-2043. ISSN 0006-3525

Das, M. K. ; Basu, A. ; Balaram, P. (1985) Effects of membrane channel-forming polypeptides on mitochondrial oxidative phosphorylation. A comparison of alamethicin, gramicidin A, melittin and tetraacetyl melittin Biochemistry International, 11 (3). pp. 357-363. ISSN 0158-5231

Francis, A. K. ; Vijayakumar, E. K. S. ; Balaram, P. ; Vijayan, M. (1985) A helical peptide containing a majority of valyl residues International Journal of Peptide and Protein Research, 26 (2). pp. 214-223. ISSN 0367-8377

Raj, P. Antony ; Balaram, P. (1985) Conformational effects on peptide aggregation in organic solvents: spectroscopic studies of two chemotactic tripeptide analogs Biopolymers, 24 (7). pp. 1131-1146. ISSN 0006-3525

Sukumar, M. ; Raj, P. Antony ; Balaram, P. ; Becker, E. L. (1985) A highly active chemotactic peptide analog incorporating the unusual residue 1-aminocyclohexanecarboxylic acid at position 2 Biochemical and Biophysical Research Communications, 128 (1). pp. 339-344. ISSN 0006-291X

Marr-Leisy, Debra ; Lahiri, Kasturi ; Balaram, P. (1985) Bilirubin binding to polypeptides and chiral amines. Induced circular dichroism and fluorescence studies International Journal of Peptide and Protein Research, 25 (3). pp. 290-296. ISSN 0367-8377

Suguna, K. ; Ramakumar, S. ; Nagaraj, R. ; Balaram, P. (1985) Structure of cyclo(-α-aminoisobutyryl-L-phenylalanyl-), CHNO Acta Crystallographica Section C: Crystal Structure Communications, 41 (2). pp. 284-286. ISSN 0108-2701

Bardi, R. ; Piazzesi, A. M. ; Toniolo, C. ; Sukumar, M. ; Antony Raj, P. ; Balaram, P. (1985) Conformations of peptides containing 1-aminocyclohexanecarboxylic acid (Acc⁶). Crystal structures of two model peptides International Journal of Peptide and Protein Research, 25 (6). pp. 628-639. ISSN 0367-8377

Balaram, P. (1985) Proton NMR studies of peptide conformations Proceedings of the Indian Academy of Sciences - Chemical Sciences, 95 (1-2). pp. 21-38. ISSN 0253-4134

Kishore, R. ; Balaram, P. (1984) Synthesis and conformations of stereochemically restricted analogs of Leu⁵-enkephalinamide. Substitution of α-aminoisobutyric acid and 1-aminocyclopentane-1-carboxylic acid at positions 2 and 3 Indian Journal of Chemistry, 23B . pp. 1137-1144. ISSN 0019-5103

Ranganathan, M. ; Balaram, P. (1984) ¹³C NMR studies on trifluoroacetyl derivatives of 2-acetamido-2-deoxyhexoses Organic Magnetic Resonance, 22 (11). pp. 717-719. ISSN 0030-4921

Das, Manoj K. ; Balaram, P. (1984) Interactions of the channel forming peptide alamethicin with artificial and natural membranes Journal of Biosciences, 6 (4). pp. 337-348. ISSN 0250-5991

Whaley, Kevin J. ; Sampath, D. S. ; Balaram, P. (1984) Optically active gossypol as a circular dichroism probe of interactions with serum albumins Biochimica et Biophysica Acta: General Subjects, 801 (1). pp. 127-130. ISSN 0304-4165

Venkataram Prasad, B. V. ; Balaram, H. ; Balaram, P. (1984) Acyclic peptides as conformational models. Crystal structure of Boc-Aib-Leu-Pro-NHMe ±2H₂O International Journal of Peptide and Protein Research, 24 (2). pp. 135-140. ISSN 0367-8377

Whaley, Kevin J. ; Sampath, D. S. ; Balaram, P. (1984) A circular dichroism study of (+) gossypol binding to proteins Biochemical and Biophysical Research Communications, 121 (3). pp. 953-959. ISSN 0006-291X

Vijayakumar, E. K. S. ; Sudha, T. S. ; Balaram, P. (1984) Circular dichroism studies of α-aminoisobutyric acid-containing peptides: Chain length and solvent effects in alternating Aib-L-Ala and Aib-L-Val sequences Biopolymers, 23 (5). pp. 877-886. ISSN 0006-3525

Vijayakumar, E. K. S. ; Balaram, P. (1984) Peptide models for the bacteriorhodopsin chromophore. Retinylidene-lysine systems containing aspartic acid and serine residues Photochemistry and Photobiology, 39 (5). pp. 667-672. ISSN 0031-8655

Balaram, P. (1984) Peptides as bioorganic models Proceedings of the Indian Academy of Sciences - Chemical Sciences, 93 (4). pp. 703-717. ISSN 0253-4134

Crisma, M. ; Fasman, G. D. ; Balaram, H. ; Balaram, P. (1984) Peptide models for β-turns International Journal of Peptide and Protein Research, 23 (4). pp. 411-419. ISSN 0367-8377

Thomas, Albert ; Narasinga Rao, B. N. ; Balaram, P. ; Anil Kumar, (1984) Application of two-dimensional correlation spectroscopy for assignment of NMR spectra of peptides Current Science, 53 (5). pp. 225-230. ISSN 0011-3891

Iqbala, M. ; Balaram, P. ; Showell, H. J. ; Freer, R. J. ; Becker, E. L. (1984) Conformationally constrained chemotactic peptide analogs of high biological activity FEBS Letters, 165 (2). pp. 171-174. ISSN 0014-5793

Kishore, R. ; Balaram, P. (1984) Cyclic biscystine peptides. Models for antiparallel β-sheet conformations Journal of the Chemical Society - Series Chemical Communications, 1984 (12). pp. 778-779. ISSN 0022-4936

Ravi, A. ; Balaram, P. (1984) Stabilization of β-turn conformations in Pro-X sequences by disulphide bridging. Synthesis and solution conformations of five cyclic cystine peptides Tetrahedron, 40 (13). pp. 2577-2583. ISSN 0040-4020

Venkataram Prasad, B. V. ; Balaram, P. ; Benedetti, Etlore (1984) The stereochemistry of peptides containing α-aminoisobutyric acid Critical Reviews in Biochemistry and Molecular Biology, 16 (4). pp. 307-348. ISSN 1040-9238

Khan, M. Islam ; Mathew, M. K. ; Mazumdar, T. ; Pain, D. ; Surolia, N. ; Das, M. K. ; Balaram, P. ; Surolia, A. (1983) Fluorescence polarization as a tool to study lectin-sugar interaction Journal of Biosciences, 5 (1). pp. 31-39. ISSN 0250-5991

Sudha, T. S. ; Vijayakumar, E. K. S. ; Balaram, P. (1983) Circular dichroism studies of helical oligopeptides: can 310 and α-helical conformations be chiroptically distinguished? Chemical Biology & Drug Design, 22 (4). pp. 464-468. ISSN 1397-002X

Rao, Ch. Pulla ; Balaram, P. ; Rao, C. N. R. (1983) ¹³C-n.m.r. studies of the conformational changes in proline oligomers brought about by lithium and calcium salts International Journal of Biological Macromolecules, 5 (5). pp. 289-295. ISSN 0141-8130

Rao, Ch. Pulla ; Balaram, P. ; Rao, C. N. R. (1983) Infrared spectroscopic study of C₇ intramolecular hydrogen bonds in peptides Biopolymers, 22 (9). pp. 2091-2104. ISSN 0006-3525

Vijayakumar, E. K. S. ; Balaram, P. (1983) Stereochemistry of α-aminoisobutyric acid peptides in solution: helical conformations of protected decapeptides with repeating Aib-L-Ala and Aib-L-Val sequences Biopolymers, 22 (9). pp. 2133-2140. ISSN 0006-3525

Kishore, R. ; Mathew, M. K. ; Balaram, P. (1983) A fluorescent peptide model for the thioredoxin active site FEBS Letters, 159 (1-2). pp. 221-224. ISSN 0014-5793

Ravi, A. ; Balaram, P. (1983) Cyclic peptide disulfides: consecutive β-turn conformation of a synthetic model peptide corresponding to the active site of thioredoxin Biochimica et Biophysica Acta (BBA) - Protein Structure and Molecular Enzymology, 745 (3). pp. 301-309. ISSN 0167-4838

Mathew, M. K. ; Balaram, P. (1983) A helix dipole model for alamethicin and related transmembrane channels FEBS Letters, 157 (1). pp. 1-5. ISSN 0014-5793

Francis, A. K. ; Iqbal, M. ; Balaram, P. ; Vijayan, M. (1983) Crystal structure of Boc-Ala-Aib-Ala-Aib-Aib-methyl ester, a pentapeptide fragment of the channel-forming ionophore suzukacillin Biopolymers, 22 (6). pp. 1499-1505. ISSN 0006-3525

Francis, A. K. ; Iqbal, M. ; Balaram, P. ; Vijayan, M. (1983) The crystal structure of a 3₁₀ helical decapeptide containing α-aminoisobutyric acid FEBS Letters, 155 (2). pp. 230-232. ISSN 0014-5793

Sudha, T. S. ; Balaram, P. (1983) Stabilization of β-turn conformations in enkephalins α-Aminoisobutyric acid analogs International Journal of Peptide and Protein Research, 21 (4). pp. 381-388. ISSN 0367-8377

Mathew, M. K. ; Balaram, P. (1983) Alamethicin and related membrane channel forming polypeptides Molecular and Cellular Biochemistry, 50 (1). pp. 47-64. ISSN 0300-8177

Ravi, A. ; Venkataram Prasad, B. V. ; Balaram, P. (1983) Cyclic peptide disulfides. Solution and solid-state conformation of Boc-Cys-Pro-Aib-Cys-NHMe with a disulfide bridge from Cys to Cys, a disulfide-bridged peptide helix Journal of the American Chemical Society, 105 (1). pp. 105-109. ISSN 0002-7863

Prasad, B. V. Venkataram ; Sudha, T. Subrahmanyam ; Balaram, Padmanabhan (1983) Molecular structure of Boc-Aib-Aib-Phe-Met-NH₂·DMSO. A fragment of a biologically active enkephalin analogue Journal of Chemical Soceity, Perkin Transanction 1 . pp. 417-421. ISSN 0300-922X

Balaram, Hemalatha ; Venkataram Prasad, B. V. ; Balaram, P. (1983) Multiple conformational states of a Pro-Pro peptide. Solid-state and solution conformations of Boc-Aib-Pro-Pro-NHMe Journal of the American Chemical Society, 105 (12). pp. 4065-4071. ISSN 0002-7863

Rao, B. N. Narasinga ; Anil Kumar, ; Balaram, Hemalatha ; Ravi, A. ; Balaram, P. (1983) Nuclear Overhauser effects and circular dichroism as probes of β-turn conformations in acyclic and cyclic peptides with pro-X sequences Journal of the American Chemical Society, 105 (25). pp. 7423-7428. ISSN 0002-7863

Vijayakumar, E. K. S. ; Balaram, P. (1983) Solution conformations of penta and heptapeptides containing repetitive α-aminoisobutyryl-L-alanyl and α-aminoisobutyryl-L-valyl sequences Tetrahedron, 39 (16). pp. 2725-2731. ISSN 0040-4020

Balaram, Hemalatha ; Venkataram Prasad, B. V. ; Balaram, P. (1982) Conformational transitions in a Pro-Pro peptide on dissolution of single crystals Biochemical and Biophysical Research Communications, 109 (3). pp. 825-831. ISSN 0006-291X

Rao, Ch. Pulla ; Balaram, P. (1982) Molecular structure of t-butyloxycarbonyl-Leu-Aib-Pro-Val-Aib-methyl ester, a fragment of alamethicin and suzukacillin: A 3₁₀-helical pentapeptide Biopolymers, 21 (12). pp. 2461-2472. ISSN 0006-3525

Vijayasarathy, S. ; Shivaji, S. ; Balaram, P. (1982) Bull sperm plasma and acrosomal membranes: fluorescence studies of lipid phase fluidity Biochemical and Biophysical Research Communications, 108 (2). pp. 585-591. ISSN 0006-291X

Vijayasarathy, S. ; Balaram, P. (1982) Regional differentiation in bull sperm plasma membranes Biochemical and Biophysical Research Communications, 108 (2). pp. 760-769. ISSN 0006-291X

Iqbal, M. ; Balaram, P. (1982) The helical conformations of 14- and 16-residue fragments of suzukacillin, a membrane channel-forming polypeptide Biochimica et Biophysica Acta (BBA) - Protein Structure and Molecular Enzymology, 706 (2). pp. 179-187. ISSN 0167-4838

Suguna, K. ; Ramakumar, S. ; Shamala, N. ; Prasad, B. V. Venkataram ; Balaram, P. (1982) Crystal structures of diketopiperazines containing α-aminoisobutyric acid: Cyclo(Aib-Aib) and cyclo(Aib-L-Ile) Biopolymers, 21 (9). pp. 1847-1855. ISSN 0006-3525

Iqbal, M. ; Balaram, P. (1982) Aggregation of apolar peptides in organic solvents. Concentration dependence of ¹H-nmr parameters for peptide NH groups in 3₁₀ helical decapeptide fragment of suzukacillin Biopolymers, 21 (7). pp. 1427-1433. ISSN 0006-3525

Venkataram Prasad, B. V. ; Balaram, Hemalatha ; Balaram, P. (1982) Type II β-turn conformation of pivaloyl-L-prolyl-α-aminoisobutyryl-N-methylamide: theoretical, spectroscopic, and X-ray studies Biopolymers, 21 (7). pp. 1261-1273. ISSN 0006-3525

Francis, A. K. ; Rao, Ch. Pulla ; Iqbal, M. ; Nagaraj, R. ; Vijayan, M. ; Balaram, P. (1982) Helical conformations of three crystalline pentapeptide fragments of suzukacillin, a membrane channel forming polypeptide Biochemical and Biophysical Research Communications, 106 (4). pp. 1240-1247. ISSN 0006-291X

Mathew, M. K. ; Nagaraj, R. ; Balaram, P. (1982) Membrane channel-forming polypeptides. Aqueous phase aggregation and membrane-modifying activity of synthetic fluorescent alamethicin fragments Journal of Biological Chemistry, 257 (5). pp. 2170-2176. ISSN 0021-9258

Prasad, B. V. Venkataram ; Balaram, P. (1982) X-Pro peptides. A theoretical study of the hydrogen bonded conformations of (α-aminoisobutyryl-L-prolyl)_n sequences International Journal of Biological Macromolecules, 4 (2). pp. 99-102. ISSN 0141-8130

Mathew, M. K. ; Nagaraj, R. ; Balaram, P. (1982) Ionophore-mediated transmembrane movement of divalent cations in small unilamellar liposomes: an evaluation of the chlortetracycline fluorescence technique and correlations with black lipid membrane studies Journal of Membrane Biology, 65 (1-2). pp. 13-17. ISSN 0022-2631

Kamwaya, M. E. ; Oster, O. ; Bradaczek, H. ; Ponnuswamy, M. N. ; Parthasarathy, S. ; Nagaraj, R. ; Balaram, P. (1982) Structure of tert-butyloxycarbonyl-L-alanyl-L-proline monohydrate (t-Boc-Ala-Pro) Acta Crystallographica Section B: Structural Science, 38 (1). pp. 172-176. ISSN 0108-7681

Venkatachalapathi, Y. V. ; Venkataram Prasad, B. V. ; Balaram, P. (1982) Conformational analysis of small disulfide loops. Spectroscopic and theoretical studies on a synthetic cyclic tetrapeptide containing cystine Biochemistry, 21 (22). pp. 5502-5509. ISSN 0006-2960

Francis, Athappilly K. ; Iqbal, Mohammed ; Balaram, Padmanabhan ; Vijayan, Mamannamana (1982) The crystal structure of the amino-terminal pentapeptide of suzukacillin. Occurrence of a four-fold peptide helix Journal of Chemical Soceity Perkin Transactions 2 (10). pp. 1235-1239. ISSN 1472-779X

Venkataram Prasad, B. V. ; Ravi, A. ; Balaram, P. (1981) Molecular structure of a cyclic tetrapeptide disulfide. A novel 3₁₀ helical conformation with an S-S bridge Biochemical and Biophysical Research Communications, 103 (4). pp. 1138-1144. ISSN 0006-291X

Pulla Rao, Ch. ; Shamala, N. ; Nagaraj, R. ; Rao, C. N. R. ; Balaram, P. (1981) Hydrophobic channels in crystals of an α-aminoisobutyric acid pentapeptide Biochemical and Biophysical Research Communications, 103 (3). pp. 898-904. ISSN 0006-291X

Balaram, P. ; Mathewa, M. K. ; Nagaraj, R. (1981) Fluorescent alamethicin fragments a study of membrane activity and aqueous phase aggregation Biochimica et Biophysica Acta: Biomembranes, 649 (2). pp. 336-342. ISSN 0005-2736

Ishizaki, H. ; Balaram, P. ; Nagaraj, R. ; Venkatachalapathi, Y. V. ; Tu, A. T. (1981) Determination of β-turn conformation by laser Raman spectroscopy Biophysical Journal, 36 (3). pp. 509-517. ISSN 0006-3495

Mathew, M. K. ; Ravi, A. ; Balaram, P. (1981) Disulfide luminescence. Emission characteristics of cyclic tetrapeptide disulfides Biochemical and Biophysical Research Communications, 103 (2). pp. 498-504. ISSN 0006-291X

Sudha, T. S. ; Balaram, P. (1981) Conformational flexibility in enkephalins: solvent dependent transitions in peptides with Gly-Gly segments detected by circular dichroism FEBS Letters, 134 (1). pp. 32-36. ISSN 0014-5793

Iqbal, M. ; Nagaraj, R. ; Balaram, P. (1981) H N.M.R. studies of protected α-aminoisobutyric acid containing peptides: chemical shift nonequivalence of benzyloxycarbonyl methylene protons International Journal of Peptide and Protein Research, 18 (2). pp. 208-213. ISSN 0367-8377

Iqbal, M. ; Balaram, P. (1981) Membrane channel forming polypeptides. 270-MHz hydrogen-1 nuclear magnetic resonance studies on the conformation of the 11-21 fragment of suzukacillin Biochemistry, 20 (17). pp. 4866-4871. ISSN 0006-2960

Venkatachalapathi, Y. V. ; Nair, C. M. K. ; Vijayan, M. ; Balaram, P. (1981) X-Pro peptides: solution and solid-state conformation of benzyloxycarbonyl-(Aib-Pro)methyl ester, a type I β-turn Biopolymers, 20 (6). pp. 1123-1136. ISSN 0006-3525

Venkatachalapathi, Y. V. ; Balaram, P. (1981) X-Pro peptides: synthesis and solution conformation of benzyloxycarbonyl-(Aib-Pro)₄methyl ester. Evidence for a novel helical structure Biopolymers, 20 (6). pp. 1137-1145. ISSN 0006-3525

Islam Khan, M. ; Surolia, Avadhesha ; Surolia, Namita ; Mathew, Mathew K. ; Balaram, Padmnabhan (1981) Fluorescence polarization as a tool to study lectin-sugar interaction: an investigation of the binding of 4-methylumbelliferyl β-D-galactopyranoside to Abrus precatorious agglutinin European Journal of Biochemistry, 115 (1). pp. 149-152. ISSN 0014-2956

Nair, C. M. K. ; Nagaraj, R. ; Ramaprasad, S. ; Balaram, P. ; Vijayan, M. (1981) Internal water bridge and antiparallel sheet in the structure of benzyloxycarbonyl-L-alanyl-D-phenylalanyl-L-proline monohydrate Acta Crystallographica Section B: Structural Science, 37 (3). pp. 597-601. ISSN 0108-7681

Venkatachalapathi, Y. V. ; Balaram, P. (1981) Temperature dependence of peptide NH chemical shifts in benzene: delineation of solvent-shielded and exposed amide protons Biopolymers, 20 (3). pp. 625-628. ISSN 0006-3525

Narayanan, Revathi ; Balaram, P. (1981) Fluorescence and N.M.R. studies of the binding of cholinergic fluorescent probes to horse serum cholinesterase International Journal of Peptide and Protein Research, 17 (2). pp. 170-180. ISSN 0367-8377

Mathew, M. K. ; Nagaraj, R. ; Balaram, P. (1981) Alamethicin and synthetic peptide fragments as uncouplers of mitochondrial oxidative phosphorylation. Effect of chain length and change Biochemical and Biophysical Research Communications, 98 (2). pp. 548-555. ISSN 0006-291X

Iqbal, M. ; Balaram, P. (1981) The 3₁₀ helical conformation of the amino terminal decapeptide of suzukacillin. 270 MHz hydrogen-1 NMR evidence for eight intramolecular hydrogen bonds Journal of the American Chemical Society, 103 (18). pp. 5548-5552. ISSN 0002-7863

Nagaraj, Ramakrishnan ; Balaram, Padmanabhan (1981) Alamethicin, a transmembrane channel Accounts of Chemical Research, 14 (11). pp. 356-362. ISSN 0001-4842

Woodward, R. B. ; Logusch, E. ; Nambiar, K. P. ; Sakan, K. ; Ward, D. E. ; Au-Yeung, B. W. ; Balaram, P. ; Browne, L. J. ; Card, P. J. ; Chen, C. H. (1981) Asymmetric total synthesis of erythromycin. 1. Synthesis of an erythronolide a secoacid derivative via asymmetric induction Journal of the American Chemical Society, 103 (11). pp. 3210-3213. ISSN 0002-7863

Woodward, R. B. ; Au-Yeung, B. W. ; Balaram, P. ; Browne, L. J. ; Ward, D. E. ; Card, P. J. ; Chen, C. H. (1981) Asymmetric total synthesis of erythromycin. 2. synthesis of an erythronolide A lactone system Journal of the American Chemical Society, 103 (11). pp. 3213-3215. ISSN 0002-7863

Woodward, R. B. ; Logusch, E. ; Nambiar, K. P. ; Sakan, K. ; Ward, D. E. ; Au-Yeung, B. W. ; Balaram, P. ; Browne, L. J. ; Card, P. J. ; Chen, C. H. (1981) Asymmetric total synthesis of erythromycin. 3. Total synthesis of erythromycin Journal of the American Chemical Society, 103 (11). pp. 3215-3217. ISSN 0002-7863

Nagaraj, R. ; Balaram, P. (1981) Conformations of synthetic alamethicin fragments. Evidence for 3 helical folding from 270-MHz hydrogen-1 nuclear magnetic resonance and circular dichroism studies Biochemistry, 20 (10). pp. 2828-2835. ISSN 0006-2960

Iqbal, M. ; Balaram, P. (1981) Membrane channel forming polypeptides. 270-MHz proton magnetic resonance studies of the aggregation of the 11-21 fragment of suzukacillin in organic solvents Biochemistry, 20 (25). pp. 7278-7284. ISSN 0006-2960

Nagaraj, R. ; Balaram, P. (1981) Racemization at proline residues during peptide bond formation : a study of diastereomeric mixtures of synthetic alamethicin fragments by 270 MHz ¹H NMR Tetrahedron, 37 (10). pp. 2001-2005. ISSN 0040-4020

Nagaraj, R. ; Balaram, P. (1981) Solution phase synthesis of alamethicin I Tetrahedron, 37 (6). pp. 1263-1270. ISSN 0040-4020

Nagaraj, R. ; Mathew, M. K. ; Balaram, P. (1980) Cation translocating effects of alamethicin and its synthetic fragments in lipid membranes: influence of peptide chain length and charge FEBS Letters, 121 (2). pp. 365-368. ISSN 0014-5793

Nagaraj, R. ; Venkatachalapathi, Y. V. ; Balaram, P. (1980) Rotational isomerism about the C_α-CO bond in proline derivatives International Journal of Peptide and Protein Research, 16 (4). pp. 291-298. ISSN 0367-8377

Iqbal, M. ; Shivaji, S. ; Vijayasarathy, S. ; Balaram, P. (1980) Synthetic peptides as chemoattractants for bull spermatozoa structure activity correlations Biochemical and Biophysical Research Communications, 96 (1). pp. 235-242. ISSN 0006-291X

Narayanan, Revathi ; Balaram, P. (1980) Synthesis of homologous fluorescent carboxylates and their application to the study of bovine serum albumin Bioorganic Chemistry, 9 (3). pp. 352-362. ISSN 0045-2068

Narayanan, R. ; Balaram, P. (1980) Fluorescent probe studies of biological membranes and model systems Journal of Scientific and Industrial Research (JSIR), 39 . pp. 441-452. ISSN 0022-4456

Narayanan, R. ; Paul, R. ; Balaram, P. (1980) Fluorescent probe studies of mixed micelles of phospholipids and bile salts. Effect of cholesterol incorporation Biochimica et Biophysica Acta: Biomembranes, 597 (1). pp. 70-82. ISSN 0005-2736

Ranganathan, M. ; Balaram, P. (1980) Trifluoroacetic anhydride. A convenient NMR solvent for carbohydrates. 270 MHz ¹H NMR studies of 2-acetamido-2-deoxyhexoses Organic Magnetic Resonance, 13 (3). pp. 220-223. ISSN 0030-4921

Venkataram Prasad, B. V. ; Shamala, N. ; Nagaraj, R. ; Balaram, P. (1980) The crystal structure of benzyloxycarbonyl-(α-aminoisobutyryl)-L-alanyl methyl ester Acta Crystallographica Section B: Structural Science, 36 (1). pp. 107-110. ISSN 0108-7681

Islam Khan, M. ; Mathew, Mathew K. ; Balaram, Padmanabhan ; Surolia, Avadhesha (1980) Fluorescence-polarization studies on binding of 4-methylumbelliferyl β-D-galactopyranoside to Ricinus communis (castor-bean) agglutinin Biochemical Journal, 191 . pp. 395-400. ISSN 0264-6021

Rao, C. Pulla ; Nagaraj, R. ; Rao, C. N. R. ; Balaram, P. (1980) Infrared studies on the conformation of synthetic alamethicin fragments and model peptides containing α-aminoisobutyric acid Biochemistry, 19 (3). pp. 425-431. ISSN 0006-2960

Nagaraj, R. ; Balaram, P. (1980) Membrane modifying linear polypeptide antibiotics Proceedings of the Indian National Science Academy - Part A: Physical Sciences . pp. 199-218. ISSN 0370-0046

Rao, Ch. Pulla ; Balaram, Padmanabhan ; Ramachandra Rao, C. N. (1980) ¹³C nuclear magnetic resonance studies of the binding of alkali and alkaline earth metal salts to amides Journal of the Chemical Society, Faraday Transactions 1: Physical Chemistry in Condensed Phases, 76 . pp. 1008-1013. ISSN 0300-9599

Mathew, M. K. ; Balaram, P. (1980) A reinvestigation of chlortetracycline fluorescence: effect of pH, metal ions, and environment Journal of Inorganic Biochemistry, 13 (4). pp. 339-346. ISSN 0162-0134

Paul, Ranajit ; Mathew, M. K. ; Narayanan, R. ; Balaram, P. (1979) Fluorescent probe and NMR studies of the aggregation of bile salts in aqueous solution Chemistry and Physics of Lipids, 25 (4). pp. 345-356. ISSN 0009-3084

Nagaraj, R. ; Sudha, T. S. ; Shivaji, S. ; Balaram, P. (1979) Enkephalin analogs. Introduction of stereochemical constraints, metal binding sites and fluorescent groups FEBS Letters, 106 (2). pp. 271-274. ISSN 0014-5793

Venkatachalapathi, Y. V. ; Balaram, P. (1979) An incipient 3₁₀ helix in Piv-Pro-Pro-Ala-NHMe as a model for peptide folding Nature, 281 . pp. 83-84. ISSN 0028-0836

Nagaraj, R. ; Balaram, P. (1979) Fluorescent hydrophobic peptide fragments of emerimicin. Models for the study of peptide aggregation and interactions with lipids and proteins Biochemical and Biophysical Research Communications, 89 (4). pp. 1041-1049. ISSN 0006-291X

Venkataram Prasad, B. V. ; Shamala, N. ; Nagaraj, R. ; Chandrasekaran, R. ; Balaram, P. (1979) Crystal and molecular structure of benzyloxycarbonyl-α-aminoisobutyryl-L-prolyl methylamide: the observation of an X₂-Pro₃ Type III β-Turn Biopolymers, 18 (7). pp. 1635-1646. ISSN 0006-3525

Pulla Rao, Ch. ; Nagaraj, R. ; Rao, C. N. R. ; Balaram, P. (1979) Infrared spectroscopy as a probe for the development of secondary structure in the amino-terminal segment of alamethicin FEBS Letters, 100 (2). pp. 244-248. ISSN 0014-5793

Rao, B. N. Narasinga ; Ramakrishnan, C. ; Balaram, P. (1979) Metal binding to pyridoxal derivatives. An NMR study of the interaction of Eu(III) with pyridoxal phosphate and pyridoxamine phosphate Journal of Biosciences, 1 (1). pp. 35-47. ISSN 0250-5991

Nagaraj, R. ; Shamala, N. ; Balaram, P. (1979) Stereochemically constrained linear peptides. Conformations of peptides containing α -aminoisobutyric acid Journal of the American Chemical Society, 101 (1). pp. 16-20. ISSN 0002-7863

Mohanakumaran Nair, C. ; Vijayan, Mamannamana ; Venkatachalapathi, Yalamoori V. ; Balaram, Padmanabhan (1979) X-ray crystal structure of pivaloyl-D-Pro-L-Pro-L-Ala-N-methylamide; observation of a consecutive β-turn conformation Journal of the Chemical Society, Chemical Communications (24). pp. 1183-1184. ISSN 0022-4936

Nagaraj, R. ; Balaram, P. (1978) A stereochemically-constrained enkephalin analog: α-Aminoisobutyryl² methionine⁵ enkephalinamide FEBS Letters, 96 (2). pp. 273-276. ISSN 0014-5793

Narayanan, R. ; Balaram, P. (1978) Homologous cholinergic fluorescent probes. Synthesis and fluorescence properties FEBS Letters, 93 (1). pp. 38-42. ISSN 0014-5793

Rao, D. N. Ramakrishna ; Mahadevan, S. ; Balaram, P. (1978) Structural studies of the hen's egg lipovitellins. NMR and fluorescence investigations Chemistry and Physics of Lipids, 22 (2). pp. 105-113. ISSN 0009-3084

Paul, Ranajit ; Balaram, P. (1978) A fluorescent probe study of the solubilisation of cholesterol by bile salt-phospholipid micelles Biochemical and Biophysical Research Communications, 81 (3). pp. 850-857. ISSN 0006-291X

Narayanan, R. ; Balaram, P. (1978) Fluorescent probe studies of biomembranes and model systems - the design and use of anionic site reporters Proceedings of the National Symposium on Biomembranes and Model Systems . pp. 53-57.

Shamala, N. ; Nagaraj, R. ; Balaram, P. (1977) The crystal and molecular structure of the amino terminal tetrapeptide of alamethicin. a novel 3₁₀ helical Biochemical and Biophysical Research Communications, 79 (1). pp. 292-298. ISSN 0006-291X

Ranganathan, Melpakkam ; Rao, Vallurupalli S. R. ; Balaram, Padmanabhan (1977) Acyclic sugars: the ring-opening of 2-acetamido-2-deoxyhexopyranoses in trifluoroacetic acid Carbohydrate Research, 58 (1). pp. 245-248. ISSN 0008-6215

Krishnan, K. S. ; Balaram, P. (1977) Nuclear magnetic resonance studies of the enzymatic hydrolysis of acetylcholine: a critical comment Molecular Pharmacology, 13 (4). pp. 621-624. ISSN 0026-895X

Das, Manoj K. ; Vithayathil, Paul J. ; Balaram, P. (1977) Stabilisation of enzyme structures by inhibitors: a nuclear magnetic resonance study of the effect of phosphate on the acid unfolding of ribonuclease a International Journal of Peptide and Protein Research, 10 (1). pp. 9-16. ISSN 0367-8377

Nagaraj, Ramakrishnan ; Balaram, Padmanabhan (1977) Facile diketopiperazine formation from dipeptides containing α-aminoisobutyric acid. Conformational factors influencing cyclisation Heterocycles, 7 (2). pp. 885-890. ISSN 0385-5414

Ganguly, J. ; Paul, Ranjit ; Ramesha, C. S. ; Balaram, P. (1977) Mechanism of cholesterol lowering effects of polyunsaturated fats Proceedings of the 1st FAOB Congress, Nagoya, Japan . pp. 105-113.

Krishnan, K. S. ; Balaram, P. (1976) Mammalian brain plasma membranes: isolation, enzymatic, and chemical characterization Experimental Cell Research, 101 (2). pp. 299-306. ISSN 0014-4827

Narayanan, Revathi ; Balaram, P. (1976) Synthesis and fluorescence properties of a probe for membrane anionic sites Biochemical and Biophysical Research Communications, 70 (4). pp. 1122-1128. ISSN 0006-291X

Krishnan, K. S. ; Balaram, P. (1976) Cation binding to brain plasma membranes: an evaluation of the use of anionic fluorescent probes Archives of Biochemistry and Biophysics, 174 (2). pp. 420-430. ISSN 0003-9861

Krishnan, K. S. ; Balaram, P. (1976) A nuclear magnetic resonance study of the interaction of serotonin with gangliosides FEBS Letters, 63 (2). pp. 313-315. ISSN 0014-5793

Krishnan, K. S. ; Balaram, P. (1975) Perturbation of lipid structures by fluorescent probes FEBS Letters, 60 (2). pp. 419-422. ISSN 0014-5793

Balaram, P. ; Bothner-By, A. A. ; Breslow, Esther (1973) Nuclear magnetic resonance studies of the interaction of peptides and hormones with bovine neurophysin Biochemistry, 12 (23). pp. 4695-4704. ISSN 0006-2960

Balaram, P. ; Bothner-By, A. A. ; Breslow, E. (1972) Localization of tyrosine at the binding site of neurophysin II by negative nuclear Overhouser effects Journal of the American Chemical Society, 94 (11). pp. 4017-4018. ISSN 0002-7863

Balaram, P. ; Bothner-By, A. A. ; Dadok, J. (1972) Negative nuclear Overhuaser effects as probes of macromolecular structure Journal of the American Chemical Society, 94 (11). pp. 4015-4017. ISSN 0002-7863