Title
Identifying the binding mode of a molecular scaffold.
Abstract
We describe a method for docking of a scaffold-based series and present its advantages over docking of individual ligands, for determining the binding mode of a molecular scaffold in a binding site. The method has been applied to eight different scaffolds of protein kinase inhibitors (PKI). A single analog of each of these eight scaffolds was previously crystallized with different protein kinases. We have used FlexX to dock a set of molecules that share the same scaffold, rather than docking a single molecule. The main mode of binding is determined by the mode of binding of the largest cluster among the docked molecules that share a scaffold. Clustering is based on our 'nearest single neighbor' method [J. Chem. Inf. Comput. Sci., 43 (2003) 208-217]. Additional criteria are applied in those cases in which more than one significant binding mode is found. Using the proposed method, most of the crystallographic binding modes of these scaffolds were reconstructed. Alternative modes, that have not been detected yet by experiments, could also be identified. The method was applied to predict the binding mode of an additional molecular scaffold that was not yet reported and the predicted binding mode has been found to be very similar to experimental results for a closely related scaffold. We suggest that this approach be used as a virtual screening tool for scaffold-based design processes.
Year
DOI
Venue
2004
10.1023/B:JCAM.0000022561.76694.5b
Journal of computer-aided molecular design
Keywords
Field
DocType
binding mode,clustering,docking,kinase inhibitors,scaffolds
DOCK,Scaffold,Binding site,Molecule,Docking (dog),Ligand,Chemistry,Bioinformatics,Virtual screening
Journal
Volume
Issue
ISSN
18
1
0920-654X
Citations 
PageRank 
References 
2
0.71
0
Authors
5
Name
Order
Citations
PageRank
Doron Chema131.07
Doron Eren220.71
Avner Yayon320.71
Amiram Goldblum465.00
Andrea Zaliani56210.45