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Phys. Rev. Lett. 102, 088103 (2009) [4 pages]

Analysis of Correlations between Energy and Residue Fluctuations in Native Proteins and Determination of Specific Sites for Binding

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Turkan Haliloglu1 and Burak Erman2
1Polymer Research Center, Bogazici University, Bebek, Istanbul, Turkey
2Department of Chemical and Biological Engineering, Koc University, Sariyer, 34450 Istanbul, Turkey

Received 21 October 2008; published 27 February 2009

The Gaussian network model is used to derive the correlations between energy and residue fluctuations in native proteins. Residues are identified that respond strongly to energy fluctuations and that display correlations with the remaining residues of the protein at the highest modes. We postulate that these residues are located at specific sites for drug binding. We test the validity of this postulate on a data set of 33 structurally distinct proteins in the unbound state. Detailed results are presented for drug binding to the HIV protease.

© 2009 The American Physical Society

URL:
http://link.aps.org/doi/10.1103/PhysRevLett.102.088103
DOI:
10.1103/PhysRevLett.102.088103
PACS:
87.14.E−