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Journal of Bacteriology, June 2007, p. 4325-4327, Vol. 189, No. 11
0021-9193/07/$08.00+0     doi:10.1128/JB.01854-06
Copyright © 2007, American Society for Microbiology. All Rights Reserved.

YhdJ, a Nonessential CcrM-Like DNA Methyltransferase of Escherichia coli and Salmonella enterica{triangledown}

Sarah E. Broadbent,1 Roberto Balbontin,2 Josep Casadesus,2 Martin G. Marinus,3 and Marjan van der Woude1*

The Hull York Medical School and the Department of Biology, University of York, P.O. Box 373, York Y010 5YW, England,1 Departamento de Genética, Facultad de Biología, Universidad de Sevilla, Apartado 1095, Seville 41080, Spain,2 Department of Biochemistry and Molecular Pharmacology, University of Massachusetts Medical School, 364 Plantation Street, Worcester, Massachusetts 016053

Received 11 December 2006/ Accepted 19 March 2007

The Caulobacter crescentus DNA adenine methyltransferase CcrM and its homologs in the {alpha}-Proteobacteria are essential for viability. CcrM is 34% identical to the yhdJ gene products of Escherichia coli and Salmonella enterica. This study provides evidence that the E. coli yhdJ gene encodes a DNA adenine methyltransferase. In contrast to an earlier report, however, we show that yhdJ is not an essential gene in either E. coli or S. enterica.

* Corresponding author. Mailing address: Department of Biology, IIU, Area 12, University of York, P.O. Box 373, York Y010 5YW, England. Phone: 44 (0)1904 328841. Fax: 44 (0)1904 328844. E-mail: mvdw1{at}york.ac.uk

{triangledown} Published ahead of print on 30 March 2007.

Journal of Bacteriology, June 2007, p. 4325-4327, Vol. 189, No. 11
0021-9193/07/$08.00+0     doi:10.1128/JB.01854-06
Copyright © 2007, American Society for Microbiology. All Rights Reserved.





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