SARS-CoV-2 protease crystals (IMAGE) DOE/Oak Ridge National Laboratory Caption SARS-CoV-2 protease crystals, grown in ORNL's Protein Crystallization and Characterization laboratory and pictured in microscopic view, will be used in X-ray scattering experiments. Credit Daniel Kneller/ORNL, U.S. Dept. of Energy Usage Restrictions source to Oak Ridge National Laboratory 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.