Tags: Enzyme.
In enzymology a tRNA nucleotidyltransferase (EC 2.7.7.56) is an enzyme that catalyzes the chemical reactiontRNAn+1 + phosphate tRNAn + a nucleoside diphosphatewhere tRNA-N is a product of transcription and tRNA Nucleotidyltransferase catalyzes this cytidine-cytidine-adenosine (CCA) addition to form the tRNA-NCCA product.