[Metabolites produced by Streptomyces kanamyceticus mutants with impaired biosynthesis of kanamycin].

Metabolites produced by Streptomyces kanamyceticus mutants with impaired kanamycin biosynthesis (kan mutants) were investigated by thin layer chromatography. With spectrophotometric scanning of the chromatograms the quantitative content of kanamycin A and 2-desoxystreptamine (2-DOS) in the culture fluid was determined. Five groups of the S.kanamyceticus mutants with impaired kanamycin biosynthesis at various stages were identified: kanA produced no D-glucosamine, kanB and kanC produced no 2-DOS, kanD was not able to transfer 2-DOS to the metabolites with the antibiotic activity, kanG synthesized no kanosamine.