Protein Crystal (IMAGE) DOE/Argonne National Laboratory Caption A protein crystal is loaded for study on a beamline of Argonne's Advanced Photon Source. Credit Argonne National Laboratory Usage Restrictions Please credit Argonne National Laboratory, otherwise no restrictions. 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.