Studies on the biosynthesis of bialaphos (SF-1293) 1. Incorporation of 13C- and 2H-labeled precursors into bialaphos.
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چکیده
منابع مشابه
Studies on the biosynthesis of bialaphos (SF-1293). 8. Purification and characterization of 2-phosphinomethylmalic acid synthase from Streptomyces hygroscopicus SF-1293.
2-Phosphinomethylmalic acid (PMM) synthase catalyzes the condensation of phosphinopyruvic acid (PPA), an analog of oxalacetic acid, and acetyl-CoA to form PMM. The enzyme was purified approximately 700-fold from a cell-free extract of Streptomyces hygroscopicus SF-1293, a bialaphos producing organism, to an electrophoretically homogeneous state. The purified PMM synthase has a subunit molecular...
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چکیده ندارد.
15 صفحه اولGilvocarcins, new antitumor antibiotics. 5. Biosynthesis of gilvocarcins: incorporation of 13C-labeled compounds into gilvocarcin aglycones.
The biosynthesis of the aglycones of gilvocarcins V and M has been studied with 13C-labeled precursors. The aglycones have been shown to be formed via the acetate pathway and a route for their biosynthesis is proposed which involves secondary addition of an alkyl group.
متن کاملBiosynthesis of griseolic acids: incorporation of 13C-labeled compounds into griseolic acid A.
Biosynthesis of griseolic acids, competitive inhibitors of cyclic nucleotide phosphodiesterase, was investigated with the culture of a producing strain of Streptomyces griseoaurantiacus. 13C-Labeled and 15N-labeled compounds were added into the culture, and 13C-enriched and 15N-enriched griseolic acid A was isolated from the culture medium and analyzed by 13C NMR and 15N NMR spectroscopy. The c...
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ژورنال
عنوان ژورنال: The Journal of Antibiotics
سال: 1982
ISSN: 0021-8820,1881-1469
DOI: 10.7164/antibiotics.35.1719