Deethylsimazine: bacterial dechlorination, deamination, and complete degradation
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چکیده
منابع مشابه
Deet hylsimazine: Bacterial Dechlorination, Deamination, and Complete Degradation
Enrichment cultures utilizing deethylsimazine (6-chloro-N-ethyl-l,3,5-triazine-2,4-diamine) as a sole nitrogen source were obtained from so5 that had had long exposure to s-triazine herbicides. A bacterium was isolated that utilized deethylsimazine quantitatively as a nitrogen source for growth, but only 1 mol of nitrogen was obtained/mol of deethylsimazine, whereas all six atoms in melamine we...
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Cell-free extracts of Rhodococcus corallinus NRRL B-15444R dechlorinated deethylsimazine (2-chloro-4-ethylamino-l,3,5-triazine-6-amine) to N-ethylammeline (2-amino-4-ethylamino-l,3,5-triazine-6(SH)-one) anaerobically, and, thus, presumably hydrolytically. Two enzyme fractions (M, about 450000 and 180000) that dechlorinated deethylsimazine were detected after gel permeation chromatography of cel...
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Hydroxyatrazine [2-(N-ethylamino)-4-hydroxy-6-(N-isopropylamino)-1,3,5-triazine] N-ethylaminohydrolase (AtzB) is the sole enzyme known to catalyze the hydrolytic conversion of hydroxyatrazine to N-isopropylammelide. AtzB, therefore, serves as the point of intersection of multiple s-triazine biodegradative pathways and is completely essential for microbial growth on s-triazine herbicides. Here, ...
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The transformation of 1,2-dichloropropane (1,2-D) was observed in anaerobic microcosms and enrichment cultures derived from Red Cedar Creek sediment. 1-Chloropropane (1-CP) and 2-CP were detected after an incubation period of 4 weeks. After 4 months the initial amount of 1,2-D was stoichiometrically converted to propene, which was not further transformed. Dechlorination of 1,2-D was not inhibit...
متن کاملEnzyme-mediated cytosine deamination by the bacterial methyltransferase M.MspI.
Most prokaryotic (cytosine-5)-DNA methyltransferases increase the frequency of deamination at the cytosine targeted for methylation in vitro in the absence of the cofactor S-adenosylmethionine (AdoMet) or the reaction product S-adenosylhomocysteine (AdoHcy). We show here that, under the same in vitro conditions, the prokaryotic methyltransferase, M.MspI (from Moraxella sp.), causes very few cyt...
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ژورنال
عنوان ژورنال: Journal of Agricultural and Food Chemistry
سال: 1984
ISSN: 0021-8561,1520-5118
DOI: 10.1021/jf00123a040