Weak and strong crossbridges.
D000199:Actins / Q000378:metabolism*; D000244:Adenosine Diphosphate / Q000378:metabolism; D000255:Adenosine Triphosphate / Q000378:metabolism; D055592:Biophysical Phenomena; D001703:Biophysics; D008954:Models, Biological; D009218:Myosins / Q000378:metabolism*; D011487:Protein Conformation; D014961:X-Ray Diffraction
D000199:Actins; D000244:Adenosine Diphosphate; D000255:Adenosine Triphosphate; D009218:Myosins