Production and isolation of cerexins C and D. Studies on antibiotics from the genus Bacillus. XVIII.

Abstract
From the culture broth of B. cereus 60-6, in which antibiotic production was improved, a new antibiotic, named cerexin C, was isolated. A new antibiotic, cerexin D, was isolated from the culture broth of B. cereus Gp-3. Cerexins C and D are closely related to cerexins A and B in their physico-chemical and antimicrobial [antibacterial] properties. Cerexins C and D are peptides essentially identical with cerexins A and B except for the presence of a lysine residue in place of the .gamma.-hydroxylysine residue.

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