Article
Nitrogen incorporation in the biosynthetic pathway of the nitrogen-containing polyketide, pamamycin in Streptomyces alboniger.
The Journal of antibiotics - 1 Nov 2005
Hashimoto Makoto, Kozone Ikuko, Kawaide Hiroshi, Abe Hiroshi, Natsume Masahiro
Abstract excerpt
The biosynthetic pathway of pamamycin (1), a nitrogen-containing polyketide, was investigated using blocked mutants of Streptomyces alboniger. Hydroxy acids K (3), L (4) and S (5) were found in cultured materials of blocked mutants and the wild type strain, but no PM-ketone (2) was detected. Hydroxy acids 3, 4, 5 and de-N-methylhydroxy acid L (7) were converted into 1, but 2 nor de-N-methylpamamycin (6) were not....
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