A new aromatase inhibitor, FR901537. I. Taxonomy, fermentation, isolation, physiochemical characteristics and biological activities

J Antibiot (Tokyo). 1995 Aug;48(8):757-62. doi: 10.7164/antibiotics.48.757.

Abstract

FR901537 is a new aromatase inhibitor produced by a bacterium Bacillus sp. No. 3072. Structural studies of FR901537 suggested that it was a novel naphthol derivative having pantetheine in its structure. FR901537 showed a potent inhibitory activity against aromatase from human placenta or rat ovary, but did not inhibit the activity of 11 beta-hydroxylase from bovine adrenal cortex. Lineweaver-Burk plot analysis revealed that FR901537 is a competitive inhibitor.

MeSH terms

  • Animals
  • Aromatase / metabolism
  • Aromatase Inhibitors*
  • Bacillus
  • Cattle
  • Female
  • Fermentation
  • Humans
  • Mice
  • Naphthols / chemistry
  • Naphthols / isolation & purification*
  • Naphthols / pharmacology*
  • Ovary / drug effects
  • Ovary / enzymology
  • Pantetheine / analogs & derivatives*
  • Pantetheine / chemistry
  • Pantetheine / isolation & purification
  • Pantetheine / pharmacology
  • Placenta / drug effects
  • Placenta / enzymology
  • Rats
  • Rats, Wistar

Substances

  • Aromatase Inhibitors
  • Naphthols
  • FR 901537
  • Pantetheine
  • Aromatase