SARS CoV2 Helicase (IMAGE) Biophysical Society Caption Nsp13 helicase (orange) unwinds RNA (blue), the same material as the SARS-CoV-2 genome. Recent findings show that mechanical forces (black arrows) increase nsp13 unwinding efficiency. Credit Image courtesy of Keith Mickolajczyk. 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.