Structure and X-ray conformation of pseudodesmins A and B, two new cyclic lipodepsipeptides from Pseudomonas bacteria

Davy Sinnaeve, Catherine Michaux, Johan Van hemel, Jan Vandenkerckhove, Eric Peys, F. A M Borremans, Benedikt Sas, Johan Wouters, José C. Martins

Research output: Contribution to journalArticlepeer-review

Abstract

Two new cyclic lipodepsipeptides named pseudodesmins A and B have been isolated from Pseudomonas bacteria collected from the mucus layer in the skin of the black belly salamander. Both compounds show moderate antibacterial activity against Gram positive bacteria, including MRSA. Complete 1H, 13C and 15N NMR assignment of both compounds afforded their covalent structure and served to guide the analysis of LC-MS and X-ray diffraction data from which the final stereochemistry could be established. Both molecules can be categorized as new members of the viscosin group of cyclic lipodepsipeptides.

Original languageEnglish
Pages (from-to)4173-4181
Number of pages9
JournalTetrahedron
Volume65
Issue number21
DOIs
Publication statusPublished - 23 May 2009

Keywords

  • Lipodepsipeptide
  • NMR
  • Plethodontidae
  • Pseudodesmin
  • Pseudomonas
  • Viscosin group
  • X-ray structure

Fingerprint

Dive into the research topics of 'Structure and X-ray conformation of pseudodesmins A and B, two new cyclic lipodepsipeptides from Pseudomonas bacteria'. Together they form a unique fingerprint.

Cite this