Myosin motility steps

1. ATP binds to S1 heads, and hea is released from actin. 2. The ATP molecule gets hydrolysed to ADP + Pi and the myosin head rotates into "cocked" state. 3. Myosin head binds actin filament. 4. "Power Stroke": Release of P and elastic energy straightens myosin; moves actin filament left. 5. ADP released and ATP is bound, head released tec.