Efflux pumps that use the energy of ATP hydrolysis to pump arsenite across a membrane. They are primarily found in prokaryotic organisms, where they play a role in protection against excess intracellular levels of arsenite ions.

Synonyms: Arsenite Transporting ATPases, ATPases, Arsenite Transporting, Transporting ATPases, Arsenite, Arsenite-Translocating ATPase, Arsenite-Transporting ATPase, ATPase, Arsenite-Translocating, Arsenite Translocating ATPase, ATPase, Arsenite-Transporting, Arsenite Transporting ATPase, EC 3.6.3.16