Fig. 2 (IMAGE) Osaka University Caption Computer graphic representation of the bacterial cell and flagella (top left) and its hook connecting the motor and filament (top right). Three-layered tube model of the hook structure (bottom left) and atomic model of the entire hook on top of the flagellar motor (bottom 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.