U-42, 126, a New Antimetabolite Antibiotic: Production, Biological Activity, and Taxonomy of the Producing Microorganism

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RESUMO

A new antimetabolite antibiotic, U-42,126, was discovered by use of a specific in vitro screen. U-42,126 was produced by the fermentation of Streptomyces sviceus. Its antimicrobial activity in vitro was limited to fungi. Certain bacteria were inhibited only when cultivated in completely synthetic media. U-42,126 was active in vivo against L1210 leukemia in mice.

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