ISOLATION OF DEALANYLALAHOPCIN, A NEW AMINO ACID, AND ITS BIOLOGICAL ACTIVITY

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A new amino acid, dealanylalahopcin, was isolated from a culture filtrate of Streptomyces albulus subsp. ochragerus; it was also formed by the enzymatic hydrolysis of alahopcin using microbial α-amino acid ester hydrolase. The amino acid was obtained as colorless needles and its molecular formula is C₆H₁₀N₂O₅ It showed very weak antibacterial activity against Gram-positive and Gram-negative bacteria, and weak inhibitory activity against the collagen prolylhydroxylase.