Predictions of tertiary stuctures of $\alpha$-helical membrane proteins by replica-exchange method with consideration of helix deformations

TL;DR

This paper introduces an enhanced replica-exchange method for predicting the tertiary structures of alpha-helical membrane proteins, accounting for helix deformations to improve accuracy in structure prediction.

Contribution

The study presents a novel prediction approach that incorporates helix deformations into the replica-exchange method, enabling more accurate modeling of membrane protein structures.

Findings

Predicted structures matched experimental data.

Method effectively captures helix distortions.

Applicable to various transmembrane proteins.

Abstract

We propose an improved prediction method of the tertiary structures of $\alpha$-helical membrane proteins based on the replica-exchange method by taking into account helix deformations. Our method allows wide applications because transmembrane helices of native membrane proteins are often distorted. In order to test the effectiveness of the present method, we applied it to the structure predictions of glycophorin A and phospholamban. The results were in accord with experiments.