Title
Modeling Robust QSAR. 1. Coding Molecules in 3D-QSAR - from a Point to Surface Sectors and Molecular Volumes.
Abstract
Shape analysis is a powerful tool in chemistry and drug design. In the current work, we compare the results of CoMFA and Comparative Molecular Surface Analysis (CoMSA), the 3D-QSAR method, for a series of hypolipidemic and antiplatelet asarones and antifungal N-myristoyltransferase inhibitors. In this publication we show that a sector CoMSA formalism enables an analysis of the biological activity that is more directly related to the molecular shape and individual molecular functionalities than the traditional uniform and directionless CoMFA field. Iterative Variable Elimination allowed us to identify the potential pharmacophoric sites. We modeled QSARs for both series and demonstrate that sector-based molecular descriptors give very predictive models and allow one to generate a spatial interpretation of the QSAR models. In particular, we identified the central aromatic ring and carbonyl functions as the moieties determining the activity of the asarones series, while the pattern of substitution of the aromatic ring determines the activity of N-myristoyltransferase inhibitors.
Year
DOI
Venue
2005
10.1021/ci0501488
JOURNAL OF CHEMICAL INFORMATION AND MODELING
DocType
Volume
Issue
Journal
45
5
ISSN
Citations 
PageRank 
1549-9596
1
0.37
References 
Authors
0
4
Name
Order
Citations
PageRank
Rafal Gieleciak1143.15
Tomasz Magdziarz261.70
Andrzej Bak3123.44
Jaroslaw Polanski4528.90