CCA tRNA nucleotidyltransferase
Template:Infobox enzyme CCA tRNA nucleotidyltransferase (EC 2.7.7.72, CCA-adding enzyme, tRNA adenylyltransferase, tRNA CCA-pyrophosphorylase, tRNA-nucleotidyltransferase, transfer-RNA nucleotidyltransferase, transfer ribonucleic acid nucleotidyl transferase, CTP(ATP):tRNA nucleotidyltransferase, transfer ribonucleate adenylyltransferase, transfer ribonucleate adenyltransferase, transfer RNA adenylyltransferase, transfer ribonucleate nucleotidyltransferase, ATP (CTP):tRNA nucleotidyltransferase, ribonucleic cytidylic cytidylic adenylic pyrophosphorylase, transfer ribonucleic adenylyl (cytidylyl) transferase, transfer ribonucleic-terminal trinucleotide nucleotidyltransferase, transfer ribonucleate cytidylyltransferase, ribonucleic cytidylyltransferase, -C-C-A pyrophosphorylase, ATP(CTP)-tRNA nucleotidyltransferase, tRNA adenylyl(cytidylyl)transferase, CTP:tRNA cytidylyltransferase) is an enzyme with systematic name CTP,CTP,ATP:tRNA cytidylyl,cytidylyl,adenylyltransferase.[1][2][3][4][5] This enzyme catalyses the following chemical reaction
- a tRNA precursor + 2 CTP + ATP a tRNA with a 3' CCA end + 3 diphosphate (overall reaction)
- (1a) a tRNA precursor + CTP a tRNA with a 3' cytidine end + diphosphate
- (1b) a tRNA with a 3' cytidine + CTP a tRNA with a 3' CC end + diphosphate
- (1c) a tRNA with a 3' CC end + ATP a tRNA with a 3' CCA end + diphosphate
The acylation of all tRNAs with an amino acid occurs at the terminal ribose of a 3' CCA sequence.
See also
References
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External links
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