. "RNA helicases utilize the energy from ATP hydrolysis to unwind RNA." . "Some of them unwind RNA with a 3' to 5' polarity, other show 5' to 3' polarity." . "Some helicases unwind DNA as well as RNA." . "May be identical with EC 3.6.4.12 (DNA helicase)." . . . "RNA helicase" . "ATP + H(2)O = ADP + phosphate." .