The divalent cation bound to actin and thin filament.
D000818:Animals; D001718:Birefringence; D002118:Calcium / Q000032:analysis; D007475:Ion Exchange Resins; D008274:Magnesium / Q000032:analysis; D009124:Muscle Proteins / Q000032:analysis; D009132:Muscles; D011817:Rabbits
D007475:Ion Exchange Resins; D009124:Muscle Proteins; D008274:Magnesium; D002118:Calcium