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Protein & Peptide Letters

Editor-in-Chief

ISSN (Print): 0929-8665
ISSN (Online): 1875-5305

Presence of Distinct Virtual Backbone Torsion angles in Dipeptide Conformers

Author(s): S. Gupta, B.M. Grail and J.W. Payne

Volume 9 , Issue 2 , 2002

Page: [133 - 138] Pages: 6

DOI: 10.2174/0929866023408904

Price: $65

Abstract

Zwitterionic dipeptides have recently been shown to exist in water mainly as nine conformational forms with specific combinations of backbone ψ, ω and φ torsions, which allows conformer-specific molecular recognition of peptide ligands by proteins. Here, we show that pairs of virtual backbone torsions can also define these nine conformational forms, and that comparing these virtual torsions in dipeptides with those of backbone-modified pseudopeptides offers an improved procedure for evaluating peptidomimetics for therapeutic applications.

Keywords: dipeptide conformus, torsion angle, zwitterionic dipeptide, specific, virsual torsion, molecular recognition template


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