Article
FixL of Rhizobium meliloti enhances the transcriptional activity of a mutant FixJD54N protein by phosphorylation of an alternate residue.
Journal of bacteriology - 1 Apr 1994
Reyrat J M, David M, Batut J, Boistard P
Abstract excerpt
In Rhizobium meliloti, transcription of nitrogen fixation genes is induced in oxygen-depleted conditions under the control of the two-component regulatory system FixLJ. FixJ is a transcriptional activator whose activity is dramatically enhanced by phosphorylation, whereas FixL is a hemoprotein kinase that controls the level of phosphorylated FixJ in response to oxygen availability. We have found that a mutant...
Topics
- Bacterial Proteins
- Gene Expression Regulation, Bacterial
- Hemeproteins
- Histidine Kinase
- Mutation
- Phosphoproteins
- Phosphorylation
- Sinorhizobium meliloti
- Transcription, Genetic