Catalyst in a chemical reaction used to fast the process. Enzymes are using as biocatalyst. Enzymes are proteins that used to fast the reaction rate to form product. Enzymes are available from different sources such as from extreme environment or from normal microorganism and also from different species. Therefore, enzymes are the key factor to build and maintain the cells such as bacteria or f...

Through all kingdoms of life RNAs are modified as, or after, they are synthesized. The types and sites of modification are often conserved, implying conservation of function. Many of these modifications are located at key functional regions of the ribosome or other RNAs. The enzymes that carry out the modifications exhibit unique or limited multisite specificity. Substrate recognition by RNA-mo...