The deamidation of nicotinamide by bacteria
نویسندگان
چکیده
منابع مشابه
Nicotinamide deamidation by microorganisms in rat stomach.
We have extended our investigation of nicotinamide deamidation in the stomach of conventional rats. The bacterial species in the pars preventricularis were identified as Flavobacterium peregrinum, Escherichia coli, Streptococcus faecalis, and Lactobacillus acidophilus, listed in order of decreasing deamidase activity. Nicotinamide-7-(14)C ingested into rat stomach was rapidly deamidated to nico...
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15 صفحه اولNicotinamide biosynthesis by intestinal bacteria as influenced by methyltryptophans.
In recent papers (Ellinger & Abdel Kader, 1947, 1948, 1949 b) it has been shown that Bacterium coli (Escherichia coli) was able to synthesize nicotinamide from ornithine, but not from tryptophan, and that mixed cultures from faeces or caecum contents could synthesize nicotinamide also from tryptophan. It was suggested that in the conversion oftryptophan to nicotinamide, ornithine was formed as ...
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ژورنال
عنوان ژورنال: Biochemical Journal
سال: 1953
ISSN: 0306-3283
DOI: 10.1042/bj0550851