Ribosomal Quality Control (IMAGE) University of Würzburg Caption Contrary to the conventional view, the ribosome does not release individual proteins directly into the cystol after synthesis (left). Instead, it holds the protein back until chaperones deliver the matching counterparts (right). This way the ribosome assures that only the one intended structure is formed, thereby adopting the role of a quality inspector in addition to production. Credit Graphic: Ashwin Chari and Elham Paknia 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.