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Purification, characterization and antimicrobial properties of an antibiotic (wassumycin) from Streptomyces species 215.

A yellow amorphous compound, wassumycin, was isolated from an unidentified strain of Streptomyces. Wassumycin inhibited the growth of several species of human and animal pathogenic bacteria especially Clostridia. Wassumycin also inhibited the growth of HeLa cells, and showed good antitumour activity against experimental mouse tumours such as L1210, P388 leukaemias, and B16 melanoma. On the basis of the chemical and antimicrobial properties, the antibiotic appeared similar to the chromomycins and olivomycins, but its ultraviolet, infrared, and proton magnetic resonance spectra differed from theirs significantly.