The primary and secondary translocase activities within E. coli RecBC helicase are tightly coupled to ATP hydrolysis by the RecB motor.
Wu C.G., Xie F., & Lohman T.M. (2012). “The primary and secondary translocase activities within E. coli RecBC helicase are tightly coupled to ATP hydrolysis by the RecB motor.” J Mol Biol. 2012 Oct 26;423(3):303-14. doi: 10.1016/j.jmb.2012.07.009. Epub 2012 Jul 20. (Abstract)