title: UDP-N-methyl-D-glucosamine-phosphate--a possible intermediate of N-methyl-L-glucosamine moiety of streptomycin.
abstract: The formation of N-methyl-L-glucosamine moiety of streptomycin from D-glucosamine by Streptomyces griseus was studied. The addition of thymine to the culture medium stimulated the formation of streptomycin and the incorporation of D-glucosamine into N-methyl-L-glucosamine moiety. During a study of sugar nucleotides in the mycelia, a novel UDP-amino sugar was isolated. The compound was formed before the maximum production of streptomycin. It was UDP-N-methyl-D-glucosamine-phosphate.
mesh_terms: D001711:Biotransformation; D005944:Glucosamine / Q000031:analogs & derivatives / Q000378:metabolism*; D013305:Streptomyces griseus / Q000378:metabolism*; D013307:Streptomycin / Q000096:biosynthesis*; D013941:Thymine / Q000378:metabolism; D014539:Uridine Diphosphate Sugars / Q000378:metabolism*
chemical_list: D014539:Uridine Diphosphate Sugars; C036976:UDP-N-methylglucosamine phosphate; D005944:Glucosamine; D013941:Thymine; D013307:Streptomycin