Identification of a potent non-hydroxamate histone deacetylase inhibitor by mechanism-based drug design

Bioorg Med Chem Lett. 2005 Jan 17;15(2):331-5. doi: 10.1016/j.bmcl.2004.10.074.

Abstract

In order to find novel non-hydroxamate histone deacetylase (HDAC) inhibitors, we synthesized several suberoylanilide hydroxamic acid (SAHA)-based compounds designed on the basis of the catalytic mechanism of HDACs. Among these compounds, 5b was found to be as potent as SAHA. Kinetic enzyme assays and molecular modeling suggested that the mercaptoacetamide moiety of 5b interacts with the zinc in the active site of HDACs and removes a water molecule from the reactive site of the deacetylation.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Acetamides / chemistry
  • Acetylation
  • Binding Sites
  • Enzyme Inhibitors / chemical synthesis*
  • Enzyme Inhibitors / pharmacology
  • Histone Deacetylase Inhibitors*
  • Hydroxamic Acids / chemical synthesis*
  • Hydroxamic Acids / pharmacology
  • Kinetics
  • Models, Molecular
  • Structure-Activity Relationship
  • Sulfhydryl Compounds / chemistry
  • Vorinostat
  • Zinc / chemistry

Substances

  • Acetamides
  • Enzyme Inhibitors
  • Histone Deacetylase Inhibitors
  • Hydroxamic Acids
  • Sulfhydryl Compounds
  • Vorinostat
  • acetamide
  • Zinc