1H and 13C assignments of cyclo[N-(Lys-Phe)-Orn-Val], a semicyclic imide tetrapeptide from Burkholderia cepacia

Magn Reson Chem. 2006 Oct;44(10):959-61. doi: 10.1002/mrc.1864.

Abstract

The rhizobacteria Burkholderia cepacia biosynthesized the new tetrapeptide Cyclo[N-(Lys-Phe)-Orn-Val] (1), a 2,5-diketopiperazine, and the known siderophore azurechelin (salicylic acid). The structure of 1 was established by means of IR, UV, 1H and 13C NMR, double dimension experiments and MS.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Burkholderia cepacia / metabolism*
  • Carbon Isotopes / analysis
  • Hydrogen / analysis
  • Molecular Structure
  • Nuclear Magnetic Resonance, Biomolecular
  • Peptides, Cyclic / biosynthesis
  • Peptides, Cyclic / chemistry*
  • Peptides, Cyclic / isolation & purification
  • Spectrophotometry, Infrared
  • Spectrophotometry, Ultraviolet

Substances

  • Carbon Isotopes
  • Peptides, Cyclic
  • cyclo(N-(lysyl-phenylalanyl)ornithyl-valyl)
  • Hydrogen