Dictionary > ATPase

ATPase

Definition
noun, plural: ATPases
An enzyme that catalyzes the hydrolysis or decomposition of ATP into ADP and a free phosphate ion, thereby releasing energy for use in another biochemical reaction.
Supplement
Examples of ATPases are transmembrane ATPases that move solutes across the membrane, especially against their concentration gradient and V-ATPases that are primarily found in eukaryotic vacuoles, catalysing ATP hydrolysis to transport solutes and lower pH in organelles.
See also: ATP synthase


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