Asymmetry (IMAGE) Osaka University Caption This is the asymmetry in the weak binding structure of myosin head and actin filament that biases the direction of their dissociation by thermal fluctuation in one direction. 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.