ATP Hydrolysis By Myosin Authored: Gillespie, ME, 2003-07-01 00:00:00 Edited: Gillespie, ME, 2009-03-10 20:55:39 Once ATP is bound, myosin, which is an ATPase, uses the energy from the cleavage of the terminal phosphate to pivot the myosin head back, away from the actin filamentous chain. This change in conformation "resets" the myosin molecule, leaving it ready to bind the actin filament once more and slide the myosin filament along the actin filament, continuing the contractile cycle. Pubmed2526655 Pubmed3780718 Reactome Database ID Release 43445699 Reactome, http://www.reactome.org ReactomeREACT_20548 Reviewed: Rush, MG, 2008-01-11 00:00:00 has a Stoichiometric coefficient of 2 ADP:Calcium Bound Myosin Actin Complex ATP:Calcium Bound Myosin Actin Complex