EOG8HHRJN GO:0033180 14/14 proton-transporting V-type ATPase, V1 domain cellular_component "A protein complex that forms part of a proton-transporting V-type ATPase and catalyzes ATP hydrolysis. The V1 complex consists of: (1) a globular headpiece with three alternating copies of subunits A and B that form a ring, (2) a central rotational stalk composed of single copies of subunits D and F, and (3) a peripheral stalk made of subunits C, E, G and H. Subunits A and B mediate the hydrolysis of ATP at three reaction sites associated with subunit A." [GOC:mah, ISBN:0716743663, PMID:16449553] EOG8HHRJN GO:0046961 14/14 proton-transporting ATPase activity, rotational mechanism molecular_function "Catalysis of the transfer of protons from one side of a membrane to the other according to the reaction: ATP + H2O + H+(in) = ADP + phosphate + H+(out), by a rotational mechanism." [EC:3.6.3.14] EOG8HHRJN GO:0015991 14/14 ATP hydrolysis coupled proton transport biological_process "The transport of protons against an electrochemical gradient, using energy from ATP hydrolysis." [GOC:mah, GOC:vw]