title: [Aspects of the biosynthesis of actinomycin C].
abstract: The protoplasts of Actinomyces sp. 26--115 producing actinomycin C were obtained by the action of lysozyme on the mycelial paste of a 48-hour microbial culture. The protoplast capacity for synthesizing actinomycin was decreased as compared to that of the intact mycelium. The transport of L-isoleucine, a precursor of actinomycin C biosynthesis in the protoplasts also decreased but this could not be the only cause of the decrease in the actinomycin biosynthesis capacity. The biosynthesis of actinomycin C by the protoplasts of Actinomycin sp. 26--115 did not require galactose and was not inhibited by glucose and exogenic actinomycin.
mesh_terms: D000190:Actinomyces / Q000378:metabolism; D000596:Amino Acids / Q000378:metabolism; D001345:Autoradiography; D001692:Biological Transport; D003609:Dactinomycin / Q000096:biosynthesis*; D007532:Isoleucine / Q000378:metabolism; D011523:Protoplasts / Q000378:metabolism; D014633:Valine / Q000378:metabolism
chemical_list: D000596:Amino Acids; D007532:Isoleucine; D003609:Dactinomycin; D014633:Valine
vernacular_title: Nekotorye aspekty biosinteza aktinomitsina C.