FR112123, a new oligopeptide antibiotic from Streptomyces viridochromogenes. Taxonomy, fermentation, isolation, physico-chemical properties, structure and biological activity.
FR112123 is a new oligopeptide antibiotic produced by Streptomyces viridochromogenes No. 7587. The structure of FR112123 is elucidated as N-(N6-(N2-glycyl-L-glutaminyl)-D-lysyl)-D-alanine (1) by spectroscopic and chemical evidence. It resembles a partial structure of peptidoglycan in bacteria. The compound has a superior activity against an Escherichia coli mutant sensitive to inhibitors of cell wall synthesis, although it has a weak activity against the parent strain. These suggest that FR112123 might act on the biosynthesis of bacterial cell wall.
Exploratory Research Laboratories, Fujisawa Pharmaceutical Co., Ltd., Ibaraki, Japan.
A
A
Fujie
T
T
Iwamoto
N
N
Shigematsu
M
M
Ezaki
M
M
Hino
S
S
Hashimoto
M
M
Okuhara
M
M
Kohsaka
H
H
Imanaka
D000818:Animals; D000900:Anti-Bacterial Agents / Q000032:analysis / Q000096:biosynthesis* / Q000302:isolation & purification / Q000494:pharmacology; D002473:Cell Wall / Q000187:drug effects; D004926:Escherichia coli / Q000187:drug effects* / Q000648:ultrastructure; D005260:Female; D005285:Fermentation; D009682:Magnetic Resonance Spectroscopy; D051379:Mice; D008813:Mice, Inbred ICR; D009842:Oligopeptides; D013055:Spectrophotometry, Infrared; D013302:Streptomyces / Q000254:growth & development / Q000378:metabolism*; D013329:Structure-Activity Relationship
D000900:Anti-Bacterial Agents; D009842:Oligopeptides; C064637:FR 112123