Bioscience, Biotechnology, and Biochemistry
Online ISSN : 1347-6947
Print ISSN : 0916-8451
Biochemistry & Molecular Biology Notes
Two Modes of Autoregulation of the murR Repressor in Escherichia coli
Daiki ISHIIAkira ISHIHAMAKaneyoshi YAMAMOTO
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JOURNAL FREE ACCESS

2009 Volume 73 Issue 11 Pages 2528-2530

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Abstract

The murPQ operon of Escherichia coli encoding the enzymes for degradation of MurNAc is derepressed by MurR (YfeT) in the presence of MurNAc-6-phosphate. MurR also represses its own expression. We found that murR is stimulated in rich medium. This activation involves MurR and most of the IIBC components of the phosphotransferase system, suggesting auto-induction of murR by an activated form of MurR.

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© 2009 by Japan Society for Bioscience, Biotechnology, and Agrochemistry
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