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Journal of Bacteriology, February 2007, p. 1154-1157, Vol. 189, No. 3
0021-9193/07/$08.00+0     doi:10.1128/JB.01575-06
Copyright © 2007, American Society for Microbiology. All Rights Reserved.

Interaction of GapA with HPr and Its Homologue, Crh: Novel Levels of Regulation of a Key Step of Glycolysis in Bacillus subtilis?{triangledown} ,{dagger}

Frédérique Pompeo, Jennifer Luciano, and Anne Galinier*

Laboratoire de Chimie Bactérienne, UPR 9043, IBSM-CNRS, 31 chemin Joseph Aiguier, 13402 Marseille cedex 20, France

Received 11 October 2006/ Accepted 14 November 2006

In Bacillus subtilis cells, we identified a new partner of HPr, an enzyme of the glycolysis pathway, the glyceraldehyde-3-phosphate dehydrogenase GapA. We showed that, in vitro, phosphorylated and unphosphorylated forms of HPr and its homologue, Crh, could interact with GapA, but only their seryl-phosphorylated forms were able to inhibit its activity.

* Corresponding author. Mailing address: Laboratoire de Chimie Bactérienne, UPR 9043, IBSM-CNRS, 31 chemin Joseph Aiguier, 13402 Marseille cedex 20, France. Phone: 00 33 4 91 16 45 71. Fax: 00 33 4 91 71 89 14. E-mail: galinier{at}ibsm.cnrs-mrs.fr.

{triangledown} Published ahead of print on 17 November 2006.

{dagger} Supplemental material may be found at http://jb.asm.org/.

Journal of Bacteriology, February 2007, p. 1154-1157, Vol. 189, No. 3
0021-9193/07/$08.00+0     doi:10.1128/JB.01575-06
Copyright © 2007, American Society for Microbiology. All Rights Reserved.



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