proton ATPase

proton ATPase
(= H+-ATPase)
An ion pump that actively transports hydrogen ions across lipid bilayers in exchange for ATP. Major groups are the F-type ATPases, that run in reverse to synthesize ATP in bacterial, mitochondrial and chloroplast membranes ("ATP synthase") ; and the V-type ATPases found in intracellular vesicles with an acidic lumen, and on certain epithelial cells (eg. kidney intercalated cells). Gastric H+/K+ ATPase is a proton-ATPase.

Dictionary of molecular biology. 2004.

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