Copper-metalated peptide palindrome derived from prion octarepeat: synthesis, aggregation, and oxidative transformations

Madhavaiah, C. ; Verma, Sandeep (2005) Copper-metalated peptide palindrome derived from prion octarepeat: synthesis, aggregation, and oxidative transformations Bioorganic & Medicinal Chemistry, 13 (9). pp. 3241-3248. ISSN 0968-0896

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Official URL: http://www.sciencedirect.com/science/article/pii/S...

Related URL: http://dx.doi.org/10.1016/j.bmc.2005.02.029

Abstract

We report construction of a bis-pentapeptide conjugate 4 containing truncated pentapeptide sequence from prion octarepeats. Its copper-laden derivative 5 demonstrated a propensity for aggregate formation, which was studied by atomic force microscopy. Oxidative biochemical transformations catalyzed by 5 were evaluated by nucleic acid cleavage and by neurotransmitter oxidation, in the presence of external co-oxidants. Preliminary mechanistic analysis provides a hint for the involvement of reactive oxygen species in such transformations.

Item Type:Article
Source:Copyright of this article belongs to Elsevier Science.
Keywords:Prion; Copper; Conjugate; Aggregation
ID Code:66193
Deposited On:21 Oct 2011 09:45
Last Modified:21 Oct 2011 09:45

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