Novel Biotransformations of 7-Ethoxycoumarin by Streptomyces griseus

Oxidation of Meloxicam by Streptomyces griseus

The aim of the present investigation was to biotransform the anti-inflammatory compound meloxicam by enzymes present in whole cells of five actinomycete cultures to produce novel bioactive derivatives. Among the actinomycetes screened, Streptomyces griseus NCIM 2622 was found to possess the enzyme system(s) that oxidize meloxicam into two metabolites whereas that present in S. griseus NCIM 2623...

oxidation of meloxicam by streptomyces griseus

the aim of the present investigation was to biotransform the anti-inflammatory compound meloxicam by enzymes present in whole cells of five actinomycete cultures to produce novel bioactive derivatives. among the actinomycetes screened, streptomyces griseus ncim 2622 was found to possess the enzyme system(s) that oxidize meloxicam into two metabolites whereas that present in s. griseus ncim 2623...

Biogenesis of chromomycin A3 by Streptomyces griseus.

The biosynthesis of chromomycin A3 was investigated using 13C-labeled acetates, methionine and glucose, and 13C,18O-labeled acetate. 13C NMR spectral analysis demonstrated that: Aglycone assembly occurs by combining at least two polyketide chains; three of nine oxygen atoms of the aglycone originate from acetate precursor oxygen atoms; carbon methylations on the aromatic ring at C-7, on the chr...

Isolation and characterization of a phage active against streptomyces griseus

Genetic recombination in Streptomyces griseus.

Low-frequency (10(-6)) genetic recombination was observed in a cephamycin-producing strain of Streptomyces griseus. The recombinants were predominantly heteroclones. Heteroclone analysis was performed involving four heteroclones of one cross. In 100 mutants correlation was found between the type of auxotrophy and the level of antibiotic activity. A cross of this strain with a streptomycin-produ...