pfam07194: P2 (This model is not part of the current CDD release)
P2 response regulator binding domain
The response regulators for CheA bind to the P2 domain, which is found between pfam01627 and pfam02895 as either one or two copies. Highly flexible linkers connect P2 to the rest of CheA and impart remarkable mobility to the P2 domain. This feature is thought to enhance the inter CheA dimer phosphotransfer reactions within the signalling complex, thereby amplifying the phosphorylation signal.