For instance , determination of the structure of the ribosome -- an RNA - protein complex that catalyzes peptide bond formation -- revealed that its active site is composed entirely of RNA .
In this fashion , RNAs can achieve chemical catalysis ( like enzymes ) .
Determination of the structure of the ribosome -- an RNA - protein complex that catalyzes peptide bond formation -- revealed that its active site is composed entirely of RNA .
In this fashion , RNAs can achieve chemical catalysis ( like enzymes ) .