Journal
JOURNAL OF CHEMICAL INFORMATION AND COMPUTER SCIENCES
Volume 41, Issue 5, Pages 1427-1435Publisher
AMER CHEMICAL SOC
DOI: 10.1021/ci010369n
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Hydrophobicity is a useful concept to rationalize the role played by amino acid residues in terms of buried or exposed conformationd with regard to the aqueous environment in proteins. The relationship of this concept with distinct approaches to represent the molecular surface is analyzed by computing reliable surface areas for three definitions namely the van der Waals, solvent-accessible, and solvent-excluded molecular surfaces. The surface areas are obtained for all of the naturally occurring amino acids by first setting a proper reference standard state and then calculating their values for a database of proteins containing a total of 4297 residues. Despite the great differences in these molecular sufaces, proper indexes are here defined for handling the information of interest to study the hydrophobic behavior of amino acids provided by such surfaces.
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