Cells Under Stress (IMAGE) Max Planck Institute of Biochemistry Caption When a cell is exposed to life-threatening conditions, the protein HSF1 (marked in green) initiates an emergency program to prevent permanent damage to the cell. Credit Christian Loew/Copyright Max Planck Institute of Biochemistry Usage Restrictions Please ask permission to use the picture: <a href="mailto:konschak@biochem.mpg.de">konschak@biochem.mpg.de</a> 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.