Synthesis and PKC isozyme surrogate binding of indothiolactam-V, a new thioamide analogue of tumor promoting indolactam-V

Bioorg Med Chem Lett. 2000 Sep 18;10(18):2087-90. doi: 10.1016/s0960-894x(00)00411-x.

Abstract

To investigate the role of the amide group of (-)-indolactam-V (1) on PKC binding, we synthesized (-)-indothiolactam-V (2), a new thioamide analogue of 1, by microbial conversion using Streptomyces blastmyceticum. Compounds 2 and 1 showed similar binding affinities to conventional PKCs but 2 had lower affinities to novel PKCs, suggesting that novel PKCs recognize amide modifications more effectively than conventional PKCs.

Publication types

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

MeSH terms

  • Binding, Competitive
  • Carcinogens / chemical synthesis*
  • Carcinogens / metabolism
  • Enzyme Activation
  • Indoles / chemical synthesis
  • Indoles / metabolism
  • Isoenzymes / metabolism
  • Lactams / chemical synthesis
  • Lactams / metabolism
  • Magnetic Resonance Spectroscopy
  • Peptide Fragments / metabolism
  • Phorbol 12,13-Dibutyrate / metabolism
  • Protein Binding
  • Protein Kinase C / chemistry
  • Protein Kinase C / metabolism*
  • Thioamides / chemical synthesis
  • Thioamides / metabolism

Substances

  • Carcinogens
  • Indoles
  • Isoenzymes
  • Lactams
  • Peptide Fragments
  • Thioamides
  • Phorbol 12,13-Dibutyrate
  • indolactam V
  • Protein Kinase C