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Biochem Biophys Res Commun. 2000 Jul 5;273(2):753-8.

Cloning and characterization of the NADH pyrophosphatases from Caenorhabditis elegans and Saccharomyces cerevisiae, members of a Nudix hydrolase subfamily.

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  • 1Department of Biology, Johns Hopkins University, Baltimore, Maryland 21218, USA.

Abstract

Two genes from Caenorhabditis elegans and Saccharomyces cerevisiae, coding for enzymes homologous to the Nudix hydrolase family of nucleotide pyrophosphatases, have been cloned and expressed in Escherichia coli. The purified enzymes are homodimers of 39.1 and 43. 5 kDa, respectively, are activated by Mg(2+) and Mn(2+), and are 30 to 50 times more active on NADH than on NAD(+). They both have a conserved array of amino acids downstream of the Nudix box first seen in the orthologous enzyme from E. coli which designates them as members of an NADH pyrophosphatase subfamily of the Nudix hydrolases.

Copyright 2000 Academic Press.

[PubMed - indexed for MEDLINE]

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