Novel strategy for three-dimensional fragment-based lead discovery

J Chem Inf Model. 2011 Apr 25;51(4):959-74. doi: 10.1021/ci200003c. Epub 2011 Mar 25.

Abstract

Fragment-based drug design (FBDD) is considered a promising approach in lead discovery. However, for a practical application of this approach, problems remain to be solved. Hence, a novel practical strategy for three-dimensional lead discovery is presented in this work. Diverse fragments with spatial positions and orientations retained in separately adjacent regions were generated by deconstructing well-aligned known inhibitors in the same target active site. These three-dimensional fragments retained their original binding modes in the process of new molecule construction by fragment linking and merging. Root-mean-square deviation (rmsd) values were used to evaluate the conformational changes of the component fragments in the final compounds and to identify the potential leads as the main criteria. Furthermore, the successful validation of our strategy is presented on the basis of two relevant tumor targets (CDK2 and c-Met), demonstrating the potential of our strategy to facilitate lead discovery against some drug targets.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Binding Sites
  • Crystallography, X-Ray
  • Cyclin-Dependent Kinase 2 / antagonists & inhibitors
  • Databases, Factual
  • Drug Design*
  • Ligands
  • Models, Molecular*
  • Protein Binding
  • Proteins / chemistry*
  • Proteins / metabolism
  • Proto-Oncogene Proteins c-met / antagonists & inhibitors
  • Small Molecule Libraries / chemistry

Substances

  • Ligands
  • Proteins
  • Small Molecule Libraries
  • Proto-Oncogene Proteins c-met
  • CDK2 protein, human
  • Cyclin-Dependent Kinase 2