Prediction of transmembrane helix configurations by replica-exchange simulations

Details Prediction of transmembrane helix configurations by replica-exchange simulations Prediction of transmembrane helix configurations by replica-exchange simulations

2003-09-14

arxiv.org/abs/cond-mat/0309338v1

Physics

Condensed Matter

Statistical Mechanics

12 pages, 4 figures, (LaTeX)

Scientific paper

10.1016/j.cplett.2003.10.153

We propose a method for predicting helical membrane protein structures by computer simulations. Our method consists of two parts. In the first part, amino-acid sequences of the transmembrane helix regions are obtained from one of existing WWW servers. In the second part, we perform a replica-exchange simulation of these transmembrane helices with some constraints and identify the predicted structure as the global-minimum-energy state. We have tested the method with the dimeric transmembrane domain of glycophorin A. The structure obtained from the prediction was in close agreement with the experimental data.

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