Bacterial 70S Ribosome (IMAGE) Aarhus University Caption The figure shows the bacterial 70S ribosome with the cleavage point for the cytotoxin VapC20 marked with red. To the right is transfer RNA, which is cleaved by a similar mechanism in the pathogenic organism Shigella flexneri. Behind this is an RNA gel showing the actual cleavage reaction in the ribosome. Credit Ditlev E. Brodersen Usage Restrictions Credit given to Ditlev E. Brodersen, Aarhus University 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.