Kinetic Gating (IMAGE) University of Illinois Chicago Caption XPC DNA repair protein shown in two modes, patrolling undamaged DNA (in green) and bound to DNA damage site (magenta, with blue XPC insert opening the site). The sun behind the molecule is a reminder that the sun is the primary source of lesions recognized by XPC. Credit Illustration: Myrna Romero and Jung-Hyun Min. 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.