Heat Shocked Cells (IMAGE) University of Chicago Medical Center Caption Microscope images of yeast cells before and heat shock. Fluorescent labeled heat-shock-granule-forming protein (Ola1) marks protein aggregates (bottom right). Credit D. Allan Drummond 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.