JOLIPEPTIN, A NEW PEPTIDE ANTIBIOTIC

Abstract
A new antibiotic, jolipeptin, was isolated from the cells of Bacillus polymyxa var. colistinus KOYAMA, a colistin-producing strain. Jolipeptin is a polypeptide antibiotic containing glycine, alanine, serine, valine, glutamic acid and α, γ-diaminobutyric acid. It contains no fatty acids as does colistin. It inhibits growth of gram-positive and gram-negative bacteria.

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