Items where Author is "Tyagi, Jaya Sivaswami"

Article

Majumdar, Shyamasree De ; Vashist, Atul ; Dhingra, Sakshi ; Gupta, Rajesh ; Singh, Alka ; Challu, Vijay K. ; Ramanathan, V. D. ; Kumar, Prahlad ; Tyagi, Jaya Sivaswami (2012) Appropriate DevR (DosR)-mediated signaling determines transcriptional response, hypoxic viability and virulence of Mycobacterium tuberculosis PLos One, 7 (4). e35847. ISSN 1932-6203

Gupta, Rajesh Kumar ; Chauhan, Santosh ; Tyagi, Jaya Sivaswami (2011) K182G substitution in DevR or C₈G mutation in the Dev box impairs protein-DNA interaction and abrogates DevR-mediated gene induction in Mycobacterium tuberculosis FEBS Journal, 278 (12). pp. 2131-2139. ISSN 1742-464X

Chauhan, Santosh ; Tyagi, Jaya Sivaswami (2011) Analysis of transcription at the oriC locus in Mycobacterium tuberculosis Microbiological Research, 166 (6). pp. 508-514. ISSN 0944-5013

Chauhan, Santosh ; Sharma, Deepak ; Singh, Alka ; Surolia, Avadhesha ; Tyagi, Jaya Sivaswami (2011) Comprehensive insights into Mycobacterium tuberculosis DevR (DosR) regulon activation switch Nucleic Acids Research . No pp. given. ISSN 0305-1048

Gautam, Uma Shankar ; Chauhan, Santosh ; Tyagi, Jaya Sivaswami (2011) Determinants outside the DevR C-terminal domain are essential for cooperativity and robust activation of dormancy genes in Mycobacterium tuberculosis PLoS One, 6 (1). e16500. ISSN 1932-6203

Kumar, Mahadevan ; Malhotra, Meenakshi ; Hanif, Mahmud ; Tyagi, Jaya Sivaswami (2011) Exposure of sputum to phenol disinfectant in conjunction with the universal sample processing solution provides safety to laboratory workers during smear microscopy Journal of Medical Microbiology . pp. 0.031633-0. ISSN 0022-2615

Gautam, Uma Shankar ; Sikri, Kriti ; Tyagi, Jaya Sivaswami (2011) Threonine 82 residue of DevR (DosR) is essential for DevR activation and function in Mycobacterium tuberculosis despite its atypical location Journal of Bacteriology . No pp. given. ISSN 0021-9193

De Majumdar, Shyamasree ; Sharma, Deepak ; Vashist, Atul ; Kaur, Kohinoor ; Taneja, Neetu Kumra ; Chauhan, Santosh ; Challu, Vijay K. ; Ramanathan, V. D. ; Balasangameshwara, V. ; Kumar, Prahlad ; Tyagi, Jaya Sivaswami (2010) Co-expression of DevR and DevR_N-Aph proteins is associated with hypoxic adaptation defect and virulence attenuation of Mycobacterium tuberculosis PloS One, 5 (2). pp. e9448_1-e9448_6. ISSN 1932-6203

Chauhan, Santosh ; Singh, Alka ; Tyagi, Jaya Sivaswami (2010) A single-nucleotide mutation in the −10 promoter region inactivates the narK2X promoter in Mycobacterium bovis and Mycobacterium bovis BCG and has an application in diagnosis FEMS Microbiology Letters, 303 (2). pp. 190-196. ISSN 0378-1097

Taneja, Neetu Kumra ; Dhingra, Sakshi ; Mittal, Aditya ; Naresh, Mohit ; Tyagi, Jaya Sivaswami (2010) Mycobacterium tuberculosis transcriptional adaptation, growth arrest and dormancy phenotype development is triggered by vitamin C PLoS One, 5 (5). e10860. ISSN 1932-6203

Gupta, Rajesh Kumar ; Thakur, Tejender S. ; Desiraju, Gautam R. ; Tyagi, Jaya Sivaswami (2009) Structure-based design of devr inhibitor active against nonreplicating mycobacterium tuberculosis Journal of Medicinal Chemistry, 52 (20). pp. 6324-6334. ISSN 0022-2623

Chauhan, Santosh ; Tyagi, Jaya Sivaswami (2009) Powerful induction of divergent tgs1-Rv3131 genes in Mycobacterium tuberculosis is mediated by DevR interaction with a high-affinity site and an adjacent cryptic low-affinity site Journal of Bacteriology, 191 (19). pp. 6075-6081. ISSN 0021-9193

Chauhan, Santosh ; Kumar, Anil ; Singhal, Amit ; Tyagi, Jaya Sivaswami ; Krishna Prasad, H. (2009) CmtR, a cadmium-sensing ArsR-SmtB repressor, cooperatively interacts with multiple operator sites to autorepress its transcription in Mycobacterium tuberculosis FEBS Journal, 276 (13). pp. 3428-3439. ISSN 1742-464X

Haldar, Sagarika ; Sharma, Neera ; Gupta, V. K. ; Tyagi, Jaya Sivaswami (2009) Efficient diagnosis of tuberculous meningitis by detection of Mycobacterium tuberculosis DNA in cerebrospinal fluid filtrates using PCR Journal of Medical Microbiology, 58 (5). pp. 616-624. ISSN 0022-2615

Malhotra, Vandana ; Tyagi, Jaya Sivaswami ; Clark-Curtiss, Josephine E. (2009) DevR-mediated adaptive response in Mycobacterium tuberculosis H37Ra: links to asparagine metabolism Tuberculosis, 89 (2). pp. 169-174. ISSN 1472-9792

Chauhan, Santosh ; Tyagi, Jaya Sivaswami (2008) Interaction of DevR with multiple binding sites synergistically activates divergent transcription of narK2-Rv1738 genes in Mycobacterium tuberculosis Journal of Bacteriology, 190 (15). pp. 5394-5403. ISSN 0021-9193

Chauhan, Santosh ; Tyagi, Jaya Sivaswami (2008) Cooperative binding of phosphorylated DevR to upstream sites is necessary and sufficient for activation of the Rv3134c-devRS operon in Mycobacterium tuberculosis: implication in the induction of DevR target genes Journal of Bacteriology, 190 (12). pp. 4301-4312. ISSN 0021-9193

Haldar, Sagarika ; Chakravorty, Soumitesh ; Bhalla, Manpreet ; De Majumdar, Shyamasree ; Tyagi, Jaya Sivaswami (2007) Simplified detection of Mycobacterium tuberculosis in sputum using smear microscopy and PCR with molecular beacons Journal of Medical Microbiology, 56 (10). pp. 1356-1362. ISSN 0022-2615

Sharma, Deepak ; Tyagi, Jaya Sivaswami (2007) The value of comparative genomics in understanding mycobacterial virulence: Mycobacterium tuberculosis H37Ra genome sequencing — a worthwhile endeavour Journal of Biosciences, 32 (2). pp. 185-189. ISSN 0250-5991

Pathak, Divya ; Chakravorty, Soumitesh ; Hanif, Mahmud ; Tyagi, Jaya Sivaswami (2007) Lysis of tubercle bacilli in fresh and stored sputum specimens: implications for diagnosing tuberculosis in stored and paucibacillary specimens by PCR BMC Microbiology, 7 (1). pp. 83_1-83_7. ISSN 1471-2180

Taneja, Neetu Kumra ; Tyagi, Jaya Sivaswami (2007) Resazurin reduction assays for screening of anti-tubercular compounds against dormant and actively growing Mycobacterium tuberculosis, Mycobacterium bovis BCG and Mycobacterium smegmatis Journal of Antimicrobial Chemotherapy, 60 (2). pp. 288-293. ISSN 0305-7453

Sharma, Deepak ; Bose, Arpita ; Shakila, H. ; Das, Taposh K. ; Tyagi, Jaya Sivaswami ; Ramanathan, V. D. (2006) Expression of mycobacterial cell division protein, FtsZ, and dormancy proteins, DevR and Acr, within lung granulomas throughout guinea pig infection FEMS Immunology & Medical Micribiology, 48 (3). pp. 329-336. ISSN 0928-8244

Chakravorty, Soumitesh ; Pathak, Divya ; Dudeja, Mridu ; Haldar, Sagarika ; Hanif, M. ; Tyagi, Jaya Sivaswami (2006) PCR amplification of shorter fragments from the devR (Rv3133c) gene significantly increases the sensitivity of tuberculosis diagnosis FEMS Microbiology Letters, 257 (2). pp. 306-311. ISSN 0378-1097

Bagchi, Gargi ; Chauhan, Santosh ; Sharma, Deepak ; Tyagi, Jaya Sivaswami (2005) Transcription and autoregulation of the Rv3134c-devR-devS operon of Mycobacterium tuberculosis Microbiology, 151 (12). pp. 4045-4053. ISSN 1350-0872

Chakravorty, Soumitesh ; Sen, Manas Kamal ; Tyagi, Jaya Sivaswami (2005) Diagnosis of extrapulmonary tuberculosis by smear, culture, and PCR using universal sample processing technology Journal of Clinical Microbiology, 43 (9). pp. 4357-4362. ISSN 0095-1137

Haldar, Sagarika ; De Majumdar, Shyamasree ; Chakravorty, Soumitesh ; Tyagi, Jaya Sivaswami ; Bhalla, Manpreet ; Sen, M. K. (2005) Detection of acid-fast bacilli in postlysis debris of clinical specimens improves the reliability of PCR Journal of Clinical Microbiology, 43 (7). pp. 3580-3581. ISSN 0095-1137

Chakravorty, Soumitesh ; Tyagi, Jaya Sivaswami (2005) Novel multipurpose methodology for detection of mycobacteria in pulmonary and extrapulmonary specimens by smear microscopy, culture, and PCR Journal of Clinical Microbiology, 43 (6). pp. 2697-2702. ISSN 0095-1137

Chakravorty, Soumitesh ; Dudeja, Mridu ; Hanif, M. ; Tyagi, Jaya Sivaswami (2005) Utility of universal sample processing methodology, combining smear microscopy, culture, and PCR, for diagnosis of pulmonary tuberculosis Journal of Clinical Microbiology, 43 (6). pp. 2703-2708. ISSN 0095-1137

Saini, Deepak Kumar ; Tyagi, Jaya Sivaswami (2005) High-throughput microplate phosphorylation assays based on DevR-DevS/Rv2027c 2-component signal transduction pathway to screen for novel antitubercular compounds Journal of Biomolecular Screening, 10 (3). pp. 215-224. ISSN 1087-0571

Saini, Deepak Kumar ; Malhotra, Vandana ; Tyagi, Jaya Sivaswami (2004) Cross talk between DevS sensor kinase homologue, Rv2027c, and DevR response regulator of Mycobacterium tuberculosis FEBS Letters, 565 (1-3). pp. 75-80. ISSN 0014-5793

Saini, Deepak Kumar ; Malhotra, Vandana ; Dey, Deepanwita ; Pant, Neha ; Das, Taposh K. ; Tyagi, Jaya Sivaswami (2004) DevR-DevS is a bona fide two-component system of Mycobacterium tuberculosis that is hypoxia-responsive in the absence of the DNA-binding domain of DevR Microbiology, 150 (4). pp. 865-875. ISSN 1350-0872

Malhotra, Vandana ; Sharma, Deepak ; Ramanathan, V. D. ; Shakila, H. ; Saini, Deepak K. ; Chakravorty, Soumitesh ; Das, Taposh K. ; Li, Qing ; Silver, Richard F. ; Narayanan, P. R. ; Tyagi, Jaya Sivaswami (2004) Disruption of response regulator gene, devR, leads to attenuation in virulence of Mycobacterium tuberculosis FEMS Microbiology Letters, 231 (2). pp. 237-245. ISSN 0378-1097

Tyagi, Jaya Sivaswami ; Sharma, Deepak (2004) Signal transduction systems of mycobacteria with special reference to M. tuberculosis Current Science, 86 (1). pp. 93-102. ISSN 0011-3891

Saini, Deepak Kumar ; Pant, Neha ; Das, Taposh K. ; Tyagi, Jaya Sivaswami (2002) Cloning, overexpression, purification, and matrix-assisted refolding of DevS (Rv 3132c) histidine protein kinase of Mycobacterium tuberculosis Protein Expression and Purification, 25 (1). pp. 203-208. ISSN 1046-5928

Mayuri, ; Bagchi, Gargi ; Das, Taposh K. ; Tyagi, Jaya Sivaswami (2002) Molecular analysis of the dormancy response in Mycobacterium smegmatis: expression analysis of genes encoding the DevR-DevS two-component system, Rv3134c and chaperone α-crystallin homologues FEMS Microbiology Letters, 211 (2). pp. 231-237. ISSN 0378-1097

Tyagi, Jaya Sivaswami ; Sharma, Deepak (2002) Mycobacterium smegmatis and tuberculosis Trends in Microbiology, 10 (2). pp. 68-69. ISSN 0966-842X

Verma, Anita ; Sampla, Avinash K. ; Tyagi, Jaya Sivaswami (1999) Mycobacterium tuberculosis rrn promoters: differential usage and growth rate-dependent control Journal of Bacteriology, 181 (14). pp. 4326-4333. ISSN 0021-9193

Tyagi, Jaya Sivaswami ; Das, Taposh K. ; Kinger, Asha K. (1996) An M. tuberculosis DNA fragment contains genes encoding cell division proteins ftsX and ftsE, a basic protein and homologues of PemK and small protein B Gene, 177 (1-2). pp. 59-67. ISSN 0378-1119

Verma, Anita ; Kinger, Asha Kiran ; Tyagi, Jaya Sivaswami (1994) Functional analysis of transcription of the Mycobacterium tuberculosis 16S rDNA-encoding gene Gene, 148 (1). pp. 113-118. ISSN 0378-1119

Kinger, Asha Kiran ; Tyagi, Jaya Sivaswami (1993) Identification and cloning of genes differentially expressed in the virulent strain of Mycobacterium tuberculosis Gene, 131 (1). pp. 113-117. ISSN 0378-1119

Tyagi, Jaya Sivaswami ; Pastan, Ira (1990) Purification o calf thymus RNA polymerase II for in vitro transcription studies Journal of Biochemical and Biophysical Methods, 21 (1). pp. 1-8. ISSN 0165-022X

Tyagi, Jaya Sivaswami ; Hirano, Hideyasu ; Pastan, Ira (1985) Modulation of fibronectin gene activity in chick embryo fibroblasts transformed by a temperature-sensitive strain (ts68) of Rous sarcoma virus Nucleic Acids Research, 13 (22). pp. 8275-8284. ISSN 0305-1048

Abraham, Irene ; Tyagi, Jaya Sivaswami ; Gottesman, Michael M. (1982) Transfer of genes to chinese hamster ovary cells by DNA-mediated transformation Somatic Cell and Molecular Genetics, 8 (1). pp. 23-39. ISSN 0740-7750

Tyagi, Jaya Sivaswami ; Venkitasubramanian, T. A. (1981) The role of glycolysis in aflatoxin biosynthesis Canadian Journal of Microbiology, 27 (12). pp. 1276-1282. ISSN 0008-4166

Tyagi , Jaya Sivaswami ; Tyagi, Anil Kumar ; Venkitasubramanian, T. A. (1981) Some factors regulating [1-¹⁴C] acetate incorporation into aflatoxins by spheroplasts and spheroplast lysates from Aspergillus parasiticus Toxicon, 19 (4). pp. 445-454. ISSN 0041-0101

Tyagi, Jaya Sivaswami ; Tyagi, Anil Kumar ; Venkitasubramanian, T. A. (1981) Some factors regulating [1-¹⁴C] acetate incorporation into aflatoxins by spheroplasts and spheroplast lysates from Aspergillus parasiticus Toxicon, 19 (4). pp. 445-454. ISSN 0041-0101