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J. Biol. Chem., Vol. 279, Issue 23, 24861-24865, June 4, 2004
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From the Department of Biology and The McCollum-Pratt Institute, The Johns Hopkins University, Baltimore, Maryland 21218
The genome of Bacillus cereus contains 26 Nudix hydrolase genes, second only to its closest relative, Bacillus anthracis which has 30. All 26 genes have been cloned, 25 have been expressed, and 21 produced soluble proteins suitable for analysis. Substrates for 16 of the enzymes were identified; these included ADP-ribose, diadenosine polyphosphates, sugar nucleotides, and deoxynucleoside triphosphates. One of the enzymes was a CDP-choline pyrophosphatase, the first Nudix hydrolase active on this substrate. Furthermore, as a result of this and previous work we have identified a new sub-family of the Nudix hydrolase superfamily recognizable by a specific amino acid motif outside of the Nudix box.
Received for publication, March 24, 2004 , and in revised form, April 1, 2004.
* This work was supported by National Institutes of Heath Grant GM18649. This is publication 1527 from the McCollum-Pratt Institute. The costs of publication of this article were defrayed in part by the payment of page charges. This article must therefore be hereby marked "advertisement" in accordance with 18 U.S.C. Section 1734 solely to indicate this fact.
To whom correspondence should be addressed. Tel.: 410-516-7316; Fax: 410-516-5213; E-mail: zoot{at}jhu.edu.
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