Title
MS-WHIM Scores for Amino Acids: A New 3D-Description for Peptide QSAR and QSPR Studies
Abstract
Several descriptors applied to peptide structure-activity and/or structure-property relationships have been developed in recent years. This report describes new descriptors for the natural amino acids which have been derived from the principal component analysis (PCA) applied on the MS-WHIM 3D-description matrices. MS-WHIM indexes are a collection of 36 statistical indexes aimed at extracting and condensing steric and electrostatic 3D-properties of a molecule. These new descriptors have been developed both on extended side-chain conformation and on rotamer library of natural amino acids. The method appeared to be more potent when describing a single conformation (i.e. extended) than when applied collectively on library conformation families. MS-WHIM scores, however, were shown to efficacely describe and correctly classify the natural amino acid features and to provide sound statistical models either predicting activities of two peptide sets taken as a test or correlating amino acid chemicophysical properties, like water-accessible surface area, to general structural features of amino acids.
Year
DOI
Venue
1999
10.1021/ci980211b
JOURNAL OF CHEMICAL INFORMATION AND COMPUTER SCIENCES
Keywords
Field
DocType
amino acid
Quantitative structure–activity relationship,Conformational isomerism,Amino acid,Computational chemistry,Peptide,Steric effects,Chemistry,Principal component analysis
Journal
Volume
Issue
ISSN
39
3
0095-2338
Citations 
PageRank 
References 
11
0.74
1
Authors
2
Name
Order
Citations
PageRank
Andrea Zaliani16210.45
Emanuela Gancia2516.01