Steady-state rate of F1-ATPase turnover during ATP hydrolysis by the single catalytic site.
Under the conditions of ATP regeneration and molar excess of nucleotide-depleted F1-ATPase the enzyme catalyses steady-state ATP hydrolysis by the single catalytic site. Values of Km = 10(-8) M and Vm = 0.05 s-1 for the single-site catalysis have been determined. ADP release limits single-site ATP hydrolysis under steady-state conditions. The equilibrium constant for ATP hydrolysis at the F1-ATPase catalytic site is less than or equal to 0.7.
D000244:Adenosine Diphosphate / Q000378:metabolism; D000255:Adenosine Triphosphate / Q000378:metabolism*; D001665:Binding Sites; D006868:Hydrolysis; D007700:Kinetics; D006180:Proton-Translocating ATPases / Q000378:metabolism*
D000244:Adenosine Diphosphate; D000255:Adenosine Triphosphate; D006180:Proton-Translocating ATPases