Kerfeld-Sutter-Proteins (IMAGE) DOE/Lawrence Berkeley National Laboratory Caption Cheryl Kerfeld and Markus Sutter handle crystallized proteins at Berkeley Lab's Advanced Light Source. Credit Marilyn Chung/Berkeley Lab Usage Restrictions Editorial use only. 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.