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Evaluation of a novel method for the identification of coevolving protein residues

Dufton, M.J. and Pritchard, L. and Bladon, P. and Mitchell, J. (2001) Evaluation of a novel method for the identification of coevolving protein residues. Protein Engineering, 14 (6). pp. 549-55. ISSN 0269-2139

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Abstract

A novel method for the identification of correlated pairs in aligned homologous protein sequences is presented and evaluated against a model of simulated protein evolution incorporating covariation. Our method is shown to be capable of identifying all coevolutionary pairs of sites, with minimal interference by background correlations, in aligned sequence sets containing ∼60 sequences with a tree depth of at least 30 accepted point mutations. This result is expected even in the presence of a large degree of neutral and non-correlated evolution. It is postulated that, since naturally occurring protein families may be subject to stronger selection pressures and a lesser degree of neutral evolution, this method of covariation analysis may be generally more robust than the model would indicate

Item type: Article
ID code: 37698
Keywords: coevolution , proteins , covariation , PAM, branching events, accepted point mutation BE, Chemistry, Biochemistry, Molecular Biology
Subjects: Science > Chemistry
Department: Faculty of Science > Pure and Applied Chemistry
Related URLs:
    Depositing user: Pure Administrator
    Date Deposited: 16 Feb 2012 13:42
    Last modified: 04 Sep 2014 18:53
    URI: http://strathprints.strath.ac.uk/id/eprint/37698

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