Helicase Structures (image) DOE/Brookhaven National Laboratory Share Print E-Mail Caption This image shows averaged electron microscope images of two intermediate helicase structures. The top shows an ORC binding the two ring structures together, and the bottom shows the completed double-ring structure with the ORC detached. Credit Brookhaven National Laboratory Usage Restrictions with credit Share Print E-Mail 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.