SARS-CoV-2 protease protein (IMAGE) DOE/Oak Ridge National Laboratory Caption The protease protein is both shaped like a heart and functions as one, allowing the virus to replicate and spread. Inhibiting the protease would block virus reproduction. Credit: Credit Andrey Kovalevsky/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.