A Lattice Model for Protein Structure Prediction at Low Resolution

Overview

Journal Proc Natl Acad Sci U S A

Specialty Science

Date 1992 Apr 1

PMID 1557356

Citations 41

Authors

D A Hinds

M Levitt

Affiliations

Soon will be listed here.

Abstract

The prediction of the folded structure of a protein from its sequence has proven to be a very difficult computational problem. We have developed an exceptionally simple representation of a polypeptide chain, with which we can enumerate all possible backbone conformations of small proteins. A protein is represented by a self-avoiding path of connected vertices on a tetrahedral lattice, with several amino acid residues assigned to each lattice vertex. For five small structurally dissimilar proteins, we find that we can separate native-like structures from the vast majority of non-native folds by using only simple structural and energetic criteria. This method demonstrates significant generality and predictive power without requiring foreknowledge of any native structural details.

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