A Possible Biosynthetic Precursor of 3-Hydroxypicolinic Acid in Etamycin
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چکیده
منابع مشابه
Chromophore activating enzyme involved in the biosynthesis of the mikamycin B antibiotic etamycin from Streptomyces griseoviridus.
A 3-hydroxypicolinic acid activating enzyme from etamycin producing Streptomyces griseoviridus has been purified to apparent homogeneity. Etamycin is a member of mikamycin B antibiotics, chromopeptide lactones, which contain 3-hydroxypicolinic acid (3-HPA) as the chromophoric group. The enzyme catalyzes both the 3-HPA-dependent ATP-pyrophosphate exchange and the formation of 3-HPA adenylate fro...
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Calcemic fraction-A (CF-A) is a biologically active, hypercalcemic and bone resorptive peptide, which was detected in, and isolated from, bovine parathyroid glands [Hamilton et al. (1971) Endocrinology 89, 1440-1447]. It has been further purified, and its relationship to parathyroid hormone clarified. The peptide is present in fresh glands at a concentration of about 3 mug/g (parathyroid hormon...
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Phosphatidylglycerol functions as donor of the sn-glycerol 1-phosphate units in the synthesis in vitro of the 1,2-phosphodiester-linked glycerol phosphate backbone of the lipoteichoic acids of Bifidobacterium bifidum subsp. pennsylvanicum. The incorporation was catalysed by a membrane-bound enzyme system. After addition of chloroform/methanol the product formed coprecipitated with protein. The ...
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ژورنال
عنوان ژورنال: Agricultural and Biological Chemistry
سال: 1984
ISSN: 0002-1369
DOI: 10.1080/00021369.1984.10866650