Abstract
BMY-28190, an antibiotic complex active against herpes simplex virus type 1 (HSV-1) was produced by the cultured broth of Streptoalloteichus hindustanus sp. nov., a producing strain of tallysomycins A and B. The antibiotic complex was recovered from the broth with Amberlite IRC-50 resin and separated from the coproduced tallysomycins and nebramycins by a series of chromatographies. BMY-28190 exhibited weak inhibitory activity toward Gram-positive and Gram-negative bacteria and strong inhibitory activity toward HSV-1. Structural studies disclosed that BMY-28190 is a novel complex of gamma-poly-D-alpha, gamma-diaminobutyric acids with an average MW of 5,130.
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