Discovery and Biosynthesis of Atrovimycin, an Antitubercular and Antifungal Cyclodepsipeptide Featuring Vicinal-dihydroxylated Cinnamic Acyl Chain

Org Lett. 2019 Apr 19;21(8):2634-2638. doi: 10.1021/acs.orglett.9b00618. Epub 2019 Apr 8.

Abstract

Atrovimycin (1), a cyclodepsipeptide containing a unique vicinal-hydroxylated cinnamic acyl chain, was isolated and elucidated from Streptomyces atrovirens LQ13. The biosynthetic pathway of 1 was achieved, revealing cytochrome P450 (Avm43) and epoxide hydrolase (Avm29) enzymes constructing the vicinal-dihydroxy substitution, as well as a tailoring P450 (Avm28) enzyme catalyzing β-hydroxylation of the l-Phe moiety. Atrovimycin shows in vitro antifungal activity and antitubercular activity against Mycobacterium tuberculosis H37Rv both in vitro (with MIC of 2.5 μg/mL) and in vivo.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Antifungal Agents / chemistry
  • Antifungal Agents / metabolism*
  • Antitubercular Agents / metabolism*
  • Antitubercular Agents / pharmacology
  • Biocatalysis
  • Biosynthetic Pathways
  • Cytochrome P-450 Enzyme System / metabolism
  • Depsipeptides / biosynthesis*
  • Depsipeptides / chemistry
  • Epoxide Hydrolases / metabolism
  • Hydroxylation
  • Mycobacterium tuberculosis / drug effects
  • Streptomyces / metabolism
  • Structure-Activity Relationship

Substances

  • Antifungal Agents
  • Antitubercular Agents
  • Depsipeptides
  • atrovimycin
  • Cytochrome P-450 Enzyme System
  • Epoxide Hydrolases