. "\"Post-transcriptional addition of the terminal 3' CCA sequence to a tRNA which does not encode this sequence within the primary transcript. CCA addition proceeds by the sequential addition of CTP, CTP, and then ATP to the 3' end of the tRNA, yielding a diphosphate with each nucleotide addition.\" [EC:2.7.7.72, GOC:go_curators]" . . "tRNA 3'-terminal CCA addition" . "CCA-adding enzyme activity" . "CCA-adding enzyme, tRNA adenylyltransferase, tRNA cytidylyltransferase, tRNA CCA-pyrophosphorylase activity" . "ribonucleic cytidylic cytidylic adenylic pyrophosphorylase activity" . "EC:2.7.7.72" . "KEGG:R09382" . "MetaCyc:TRNA-CYTIDYLYLTRANSFERASE-RXN" . . "-C-C-A pyrophosphorylase activity" . "transfer ribonucleic adenylyl (cytidylyl) transferase activity" . "tRNA CCA-diphosphorylase activity" . "CTP:tRNA cytidylyltransferase activity" . "ribonucleic cytidylyltransferase activity" . "transfer ribonucleate adenyltransferase activity" . "transfer ribonucleate adenylyltransferase activity" . "transfer ribonucleate cytidylyltransferase activity" . "transfer RNA adenylyltransferase activity" . "tRNA cytidylyltransferase activity" . "ATP(CTP)-tRNA nucleotidyltransferase activity" . "ATP(CTP):tRNA nucleotidyltransferase activity" . "CCA tRNA nucleotidyltransferase activity" . "CTP(ATP):tRNA nucleotidyltransferase activity" . "transfer ribonucleate nucleotidyltransferase activity" . "transfer ribonucleic acid nucleotidyl transferase activity" . "transfer ribonucleic-terminal trinucleotide nucleotidyltransferase activity" . "transfer-RNA nucleotidyltransferase activity" . "tRNA adenylyl(cytidylyl)transferase activity" . "tRNA-nucleotidyltransferase activity" .