1H and 13C assignments of cyclo[N-(Lys-Phe)-Orn-Val], a semicyclic imide tetrapeptide from Burkholderia cepacia.
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.
Pérez-Picaso
Lemuel
L
Centro de Investigaciones Químicas de la Universidad Autónoma del Estado de Morelos, Av. Universidad 1001, Col. Chamilpa, 62209, Cuernavaca, Morelos, México.
Rios
María Yolanda
MY
Hernández
Ana Niurka
AN
Martínez
Jorge
J
D016956:Burkholderia cepacia / Q000378:metabolism*; D002247:Carbon Isotopes / Q000032:analysis; D006859:Hydrogen / Q000032:analysis; D015394:Molecular Structure; D019906:Nuclear Magnetic Resonance, Biomolecular; D010456:Peptides, Cyclic / Q000096:biosynthesis / Q000737:chemistry* / Q000302:isolation & purification; D013055:Spectrophotometry, Infrared; D013056:Spectrophotometry, Ultraviolet
D002247:Carbon Isotopes; D010456:Peptides, Cyclic; C522481:cyclo(N-(lysyl-phenylalanyl)ornithyl-valyl); D006859:Hydrogen