results pcslab is a weak promoter responding to come and its binding appears to be negative cooperative. although pcslab is partially controlled by comcde, it can respond to comcde regulation. supported by the obtained molecular evidence, cslab acts as a stabilizer of comcde signal on the patterns of its expression. conclusions pcslab is partially controlled by comcde. cslab is a stabilizer of ...

Most prokaryotic signal-transduction systems and a few eukaryotic pathways use phosphotransfer schemes involving two conserved components, a histidine protein kinase and a response regulator protein. The histidine protein kinase, which is regulated by environmental stimuli, autophosphorylates at a histidine residue, creating a high-energy phosphoryl group that is subsequently transferred to an ...