Assay ribosome display

Perhaps the most interesting conclusion from the peptidyltransferase assays is the evidence that ribosomes from extremely thermophilic archaea display significant peptidyltransferase activity (both uncoupled and coupled) at temperatures (37°C) well below that required for poly(U)-directed polypeptide synthesis. Therefore, in the thermophile systems high temperature appears to activate reactions other than peptide bond formation. 

---