The development of highly potent inhibitors for porcupine

J Med Chem. 2013 Mar 28;56(6):2700-4. doi: 10.1021/jm400159c. Epub 2013 Mar 19.


Porcupine is a member of the membrane-bound O-acyltransferase family of proteins. It catalyzes the palmitoylation of Wnt proteins, a process required for their secretion and activity. We recently disclosed a class of small molecules (IWPs) as the first reported Porcn inhibitors. We now describe the structure-activity relationship studies and the identification of subnanomolar inhibitors. We also report herein the effects of IWPs on Wnt-dependent developmental processes, including zebrafish posterior axis formation and kidney tubule formation.

Publication types

  • Research Support, N.I.H., Extramural
  • Research Support, Non-U.S. Gov't
  • Research Support, U.S. Gov't, Non-P.H.S.

MeSH terms

  • Acyltransferases
  • Drug Discovery*
  • Enzyme Inhibitors / chemistry*
  • Enzyme Inhibitors / pharmacology*
  • Membrane Proteins / antagonists & inhibitors*
  • Small Molecule Libraries / chemistry*
  • Small Molecule Libraries / pharmacology*
  • Structure-Activity Relationship


  • Enzyme Inhibitors
  • Membrane Proteins
  • Small Molecule Libraries
  • Acyltransferases
  • PORCN protein, human