ID 3.6.4.9 DE Chaperonin ATPase. AN Chaperonin. CA ATP + H(2)O = ADP + phosphate. CC -!- Multisubunit proteins with 2x7 (Type I, in most cells) or 2x8 (Type CC II, in archaea) ATP-binding sites involved in maintaining an unfolded CC polypeptide structure before folding or to entry into mitochondria CC and chloroplasts. CC -!- Molecular masses of subunits ranges from 10-90 kDa. //