A 50S Ribosome Subunit (IMAGE) Charité - Universitätsmedizin Berlin Caption Snapshot capturing a moment in the assembly of a bacterial 50S subunit. At this stage in the process, similarities between the precursors and mature 50S subunits are already at above 95 percent. Credit Charité/Nikolay 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.