Discovery of a novel protein kinase B inhibitor by structure-based virtual screening

Bioorg Med Chem Lett. 2009 Aug 15;19(16):4634-8. doi: 10.1016/j.bmcl.2009.06.078. Epub 2009 Jun 25.

Abstract

Protein kinase B (PKB/AKT) is a promising and attractive therapeutic target in anticancer drug development. Herein, we report the findings of virtual screening for novel ATP-competitive inhibitors of AKT-2 using 2D- and 3D-similarity searching and sequential molecular docking with two crystal structures of AKT-2. Our multistep approach led to the identification of a low micromolar AKT-2 inhibitor (IC(50)=1.5 microM) with a novel scaffold. The experimentally validated inhibitor represents the starting point for an optimization program.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Cell Line, Tumor
  • Computer Simulation
  • Crystallography, X-Ray
  • Databases, Factual
  • Drug Discovery
  • Humans
  • Protein Isoforms / antagonists & inhibitors
  • Protein Isoforms / metabolism
  • Protein Kinase Inhibitors / chemistry*
  • Protein Kinase Inhibitors / pharmacology
  • Protein Structure, Tertiary
  • Proto-Oncogene Proteins c-akt / antagonists & inhibitors*
  • Proto-Oncogene Proteins c-akt / metabolism
  • Structure-Activity Relationship

Substances

  • Protein Isoforms
  • Protein Kinase Inhibitors
  • Proto-Oncogene Proteins c-akt