Phosphorylation of CheA Flashcards
What is the fn of the MCP
regulates the rate of CheA autophosphorylation
What happens when attractants bind to the MCP
inhibits autophoshorylation of CheA. The filament will rotate CCW and cell will run
What happens if no attractant is bound to the MCP
CheA will autophosphorylate then CheA-P will phophorylate CheY. CheY-P will interact w.FliM. filament will turn CW and cell tumbles
What happens after cell tumbles
a few secs later CheZ will dephosphorlyate CheY-P. the Pi will be recycled
How is CheB phosphorylated
CheA-P also phosphorylates Che-B
What is the fn of CheB-P
demethylates the MCP. If no attractant is bound to MCP the level of MCP methylation will be low
How is CheA phosphorylated
CheA takes ATP to produce ADP as waste produce and becomes CheA-P