Official websites use .gov
A
.gov website belongs to an official
government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you've safely
connected to the .gov website. Share sensitive
information only on official, secure websites.
The phosphorylation reactions involving CheA3. The domain structures of CheA3 and CheA4 are shown. The P1 domain of CheA3 is phosphorylated by a CheA4 dimer. CheA3-P then acts as a phosphodonor for either CheY1, CheY6, or CheB2. These RRs all autodephosphorylate. However, CheA3 acts as a phosphatase on CheY6-P (red arrow) and can accelerate the rate of dephosphorylation by at least a factor of 3 over the rate of autodephosphorylation.
