ATP synthase subunit alpha, mitochondrial

UniProtKB accession:  C0HK51

Grouped By:  Matching UniProtKB accession

UniProtKB description:  Mitochondrial membrane ATP synthase (F(1)F(0) ATP synthase or Complex V) produces ATP from ADP in the presence of a proton gradient across the membrane which is generated by electron transport complexes of the respiratory chain (PubMed:25759169). F-type ATP synthases consist of two structural domains, F(1) - containing the extramembraneous catalytic core, and F(0) - containing the membrane proton channel, linked together by a central stalk and a peripheral stalk (PubMed:27791192). During catalysis, ATP synthesis in the catalytic domain of F(1) is coupled via a rotary mechanism of the central stalk subunits to proton translocation (By similarity). Subunits alpha/ATP1 and beta/ATP2 form the catalytic core in F(1) (By similarity). Rotation of the central stalk against the surrounding alpha/ATP1(3)beta/ATP2(3) subunits leads to hydrolysis of ATP in three separate catalytic sites on the beta/ATP2 subunits (By similarity). Subunit alpha/ATP1 does not bear the catalytic high-affinity ATP-binding sites (By similarity).