Three New Nudix Hydrolases from Escherichia coli
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چکیده
منابع مشابه
Nudix hydrolases degrade protein-conjugated ADP-ribose
ADP-ribosylation refers to the transfer of the ADP-ribose group from NAD(+) to target proteins post-translationally, either attached singly as mono(ADP-ribose) (MAR) or in polymeric chains as poly(ADP-ribose) (PAR). Though ADP-ribosylation is therapeutically important, investigation of this protein modification has been limited by a lack of proteomic tools for site identification. Recent work h...
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Nudix (nucleoside diphosphates linked to some moiety X) hydrolases act to hydrolyze ribo-and deoxyribo-nucleoside triphophates, nucleotide sugars, coenzymes, or dinucleoside polyphosphates. Arabidopsis thaliana contains 27 genes encoding Nudix hydrolase homologues (AtNUDX1-27) with a predicted distribution in the cytosol, mitochondria, and chloroplasts. Previously, cytosolic Nudix hydrolases He...
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The common substrate structure for the functionally diverse Nudix protein superfamily is nucleotide-diphosphate-X, where X is a large variety of leaving groups. The substrate specificity is known for less than 1% of the 29,400 known members. Most activities result in the release of an inorganic phosphate ion or of a product bearing a terminal phosphate moiety. Reactions have typically been moni...
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Pyrimidine-requiring cdd mutants of Escherichia coli deficient in cytidine deaminase utilize cytidine as a pyrimidine source by an alternative pathway. This has been presumed to involve phosphorylation of cytidine to CMP by cytidine/uridine kinase and subsequent hydrolysis of CMP to cytosine and ribose 5-phosphate by a putative CMP hydrolase. Here we show that cytidine, in cdd strains, is conve...
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Glycosyl hydrolase (GH) genes from Escherichia coli and Bacillus subtilis were used to search for cases of horizontal gene transfer. Such an event was inferred by G + C content, codon usage analysis, and a phylogenetic congruency test. The codon usage analysis used is a procedure based on a distance derived from a Pearson linear correlation coefficient determined from a pairwise codon usage com...
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ژورنال
عنوان ژورنال: Journal of Biological Chemistry
سال: 2006
ISSN: 0021-9258
DOI: 10.1074/jbc.m603407200