Isolation of tridecaptins a, b and c (studies on antibiotics from the genus bacillus. XXIII)

Abstract

Three new antibiotics, tridecaptins A, B and C, were isolated from culture broths of strains of Bacillus polymyxa AR-110, B-2 and E-23, respectively. All are acyl tridecapeptides differing from each other in the fatty acid components and amino acid residues. They are weakly active against Gram-negative and Gram-positive bacteria in vitro and in vivo. © 1978, JAPAN ANTIBIOTICS RESEARCH ASSOCIATION. All rights reserved.