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Predicting binding modes from free energy calculations.

Abstract：

:To produce reliable predictions of bioactive conformations is a major challenge in the field of structure-based inhibitor design and is a requirement for accurate binding free energy predictions with structure-based methods. A series of HIV-1 reverse transcriptase inhibitors was cross-docked using a non-native crystal structure that resulted in two distinct clusters of possible conformations. One of these clusters was compatible with an existing crystal structure, whereas the other displayed a flipped heterocyclic group. Binding free energies, using the non-native crystal structure, calculated from several scoring functions, were similar for the two clusters, and no conclusion about the binding mode could be drawn from these results. The two clusters could be separated through rescoring with the linear interaction method (LIE) in combination with molecular dynamics simulations, which leads to a binding mode prediction in line with experimental crystallographic data. Further, the LIE model produces the best correlation between experimental and calculated binding free energies among the tested scoring methods.

journal_name

J Med Chem

journal_title

Journal of medicinal chemistry

authors

Nervall M,Hanspers P,Carlsson J,Boukharta L,Aqvist J

doi

10.1021/jm701218j

subject

Has Abstract

pub_date

2008-05-08 00:00:00

pages

2657-67

issue

9

eissn

0022-2623

issn

1520-4804

journal_volume

51

pub_type

杂志文章

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