Protein & Peptide Letters

Prof. Ben M. Dunn  
Department of Biochemistry and Molecular Biology
University of Florida
College of Medicine
P.O. Box 100245
Gainesville, FL
USA
Email: bdunn@ufl.edu

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Why Inverse Proteins Are Relatively Abundant

Author(s): Jean-Christophe Nebel and Claude Godfrey Charles Walawage

Affiliation: Faculty of Computing, Information Systems and Mathematics, Kingston University, Kingston-upon-Thames, KT1 2EE, UK.

Keywords: Amino acid propensity, inverse proteins, nullomers, random peptide chains, repeats

Abstract:

Studies have shown that inverse proteins are relatively abundant. In this work, we investigate the proposition that the repeat patterns they share with protein sequences explain this phenomenon. Using a new artificial set of peptide sequences which also display these features and a random set, we show that the presence of repeats contributes to protein sequence similarity. Further analysis confirms that most inverse proteins exhibit repeats. Therefore, we suggest the relative abundance of inverse proteins can be explained by the fact they display the same repeat structures and amino acid propensity of existing proteins.

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Article Details

VOLUME: 17
ISSUE: 7
Page: [854 - 860]
Pages: 7
DOI: 10.2174/092986610791306698