A large highly-conserved family of ATPases with diverse functions in cells that are characterized by the presence of a P-LOOP and a ring shape. They couple the energy generated by ATP hydrolysis to remodeling or mechanical translocation of their target molecules.

Synonyms: AAA ATPases, ATPases Associated with Diverse Cellular Activities, Proteases, AAA, ATPases, AAA+, Protease, AAA, AAA+ ATPase, ATPase, AAA+, AAA+ ATPases, 0, AAA Protease, AAA Proteases, Proteases, AAA+, ATPase, AAA, Protease, AAA+, EC 3.6.4.-, AAA+ Proteases, AAA+ Protease, AAA ATPase