Target genes, consensus binding site, and role of phosphorylation for the response regulator MtrA of Corynebacterium glutamicum.

ABSTRACT: The two-component signal transduction system consisting of the sensor kinase MtrB and the response regulator MtrA is highly conserved in corynebacteria and mycobacteria. Whereas mtrA of Mycobacterium tuberculosis was reported to be essential, we recently succeeded in creating ΔmtrAB and ΔmtrA deletion mutants of Corynebacterium glutamicum and provided evidence that mepA and nlpC, both encoding putative cell wall peptidases, are directly repressed by MtrA, whereas proP and betP, both encoding carriers for compatible solutes, are directly activated by MtrA. In the present study, novel MtrA target genes were identified, including mepB, encoding another putative cell wall peptidase. The repressor or activator functions of MtrA correlate with the distance between the MtrA binding site and the t

SUBMITTER: Brocker M 

PROVIDER: S-EPMC3067596 | biostudies-literature | 2011 Mar

REPOSITORIES: biostudies-literature