Microbial transformation of azacarbazoles. V. Studies on N-1 methylation of 4-methyl-alpha-carboline by Kitasatosporia setae strain

Peczyńska-Czoch, W.

Archivum Immunologiae et Therapiae Experimentalis 35(2): 117-124

1987


ISSN/ISBN: 0004-069X
PMID: 3447527
Document Number: 293889
N-1 methylation of an azacarbazole, 4-methyl-alpha-carboline by Kitasatosporia setae was associated with antifungal metabolite production. Incubation of 4-methyl-alpha-carboline with intact cells or homogenates of Kitasatosporia setae and L-/14CH3/-methionine or adenosyl-S-/14CH3/-L-methionine yielded radioactive products, 1,4-dimethyl-alpha-iso-carboline. The presence of 14C-labelled methyl groups in antifungal metabolite has been also observed. Mutants of Kitasatosporia setae with lost abilities to produce antifungal metabolite did not convert 4-methyl-alpha-carboline into its methyl derivative.

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