(IMAGE) Technical University of Munich (TUM) Caption When a cell is exposed to stress phosphate groups are attached to a specific region of the storage form of αB-crystallin breaking it up into smaller, more flexible units. They are the active forms which can protect other proteins from clumping together. Credit Dr. Sevil Weinkauf / TUM 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.