Distances and classification of amino acids for different protein secondary structures

Details Distances and classification of amino acids for different protein secondary structures Distances and classification of amino acids for different protein secondary structures

2002-11-07

arxiv.org/abs/physics/0211033v5

PRE 67,051927 (2003)

Physics

Biological Physics

15 pages, 8 figures

Scientific paper

10.1103/PhysRevE.67.051927

Window profiles of amino acids in protein sequences are taken as a description of the amino acid environment. The relative entropy or Kullback-Leibler distance derived from profiles is used as a measure of dissimilarity for comparison of amino acids and secondary structure conformations. Distance matrices of amino acid pairs at different conformations are obtained, which display a non-negligible dependence of amino acid similarity on conformations. Based on the conformation specific distances clustering analysis for amino acids is conducted.

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