Characteristics for determining nonpolar amino acid residues in amino acid sequences of certain globular proteins
Trikulenko, A.V.
Molekuliarnaia Biologiia 27(2): 320-322
1993
ISSN/ISBN: 0026-8984 PMID: 8487764 Document Number: 419707
A method of quantitative characterization of nonpolar residue distribution in amino acid sequences of globular proteins is proposed. It consists in determination of ratios of residues belonging to two selected amino acid subgroups: leucine, phenylalanine, tyrosine, tryptophan; and alanine, valine, isoleucine. It was found that the values of the proposed index of analyzed proteins are in the range 0.51-1.27, the mean value being 0.90 +/- 0.10.