Detecting the Jammed Ribosome (IMAGE) Scripps Research Institute Caption An incompletely built protein fragment remains attached to a tRNA molecule (red) within an obstructed bacterial large ribosomal sub-unit (light blue). The bacterial version of Rqc2 detects the jammed ribosome (Dark blue). Credit Helge Paternoga, Joazeiro laboratory. 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.