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Information on EC 7.1.2.2 - H+-transporting two-sector ATPase

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EC Tree
IUBMB Comments
A multisubunit non-phosphorylated ATPase that is involved in the transport of ions. Large enzymes of mitochondria, chloroplasts and bacteria with a membrane sector (Fo, Vo, Ao) and a cytoplasmic-compartment sector (F1, V1, A1). The F-type enzymes of the inner mitochondrial and thylakoid membranes act as ATP synthases. All of the enzymes included here operate in a rotational mode, where the extramembrane sector (containing 3 alpha- and 3 beta-subunits) is connected via the delta-subunit to the membrane sector by several smaller subunits. Within this complex, the gamma- and epsilon-subunits, as well as the 9--12 c subunits rotate by consecutive 120_degree_ angles and perform parts of ATP synthesis. This movement is driven by the H+ electrochemical potential gradient. The V-type (in vacuoles and clathrin-coated vesicles) and A-type (archaeal) enzymes have a similar structure but, under physiological conditions, they pump H+ rather than synthesize ATP.
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Word Map
The expected taxonomic range for this enzyme is: Bacteria, Eukaryota, Archaea
Reaction Schemes
Synonyms
atp synthase, v-atpase, f1-atpase, h+-atpase, mitochondrial atpase, vacuolar h(+)-atpase, vacuolar atpase, lipid-binding protein, vacuolar h+-atpase, f0f1-atpase, more
REACTION
REACTION DIAGRAM
COMMENTARY hide
ORGANISM
UNIPROT
LITERATURE
ATP + H2O + 4 H+[side 1] = ADP + phosphate + 4 H+[side 2]
show the reaction diagram
PATHWAY SOURCE
PATHWAYS
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