Fig.3 (IMAGE) Osaka University Caption Schematic diagram of the structural change of the thin filament upon Ca2+ binding to troponin C (upper panel) and three structural models of the thin filament (lower panel) including the myosin head bound state (right) Credit Osaka University Usage Restrictions None License Licensed content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.