tRNA-nucleotidyltransferase 1, is an enzyme that in humans is encoded by the TRNT1gene.[1][2][3]
This enzyme adds the nucleotide sequence CCA to the 3' end of tRNA, using ATP and CTP as substrates. The sequence creates the binding site for an amino acid.[4]
↑Lizano E, Scheibe M, Rammelt C, Betat H, Mörl M (May 2008). "A comparative analysis of CCA-adding enzymes from human and E. coli: differences in CCA addition and tRNA 3'-end repair". Biochimie. 90 (5): 762–72. doi:10.1016/j.biochi.2007.12.007. PMID18226598.
Reichert AS, Thurlow DL, Mörl M (2002). "A eubacterial origin for the human tRNA nucleotidyltransferase?". Biol. Chem. 382 (10): 1431–8. doi:10.1515/BC.2001.176. PMID11727826.
Augustin MA, Reichert AS, Betat H, et al. (2003). "Crystal structure of the human CCA-adding enzyme: insights into template-independent polymerization". J. Mol. Biol. 328 (5): 985–94. doi:10.1016/S0022-2836(03)00381-4. PMID12729736.
Lizano E, Schuster J, Müller M, et al. (2007). "A splice variant of the human CCA-adding enzyme with modified activity". J. Mol. Biol. 366 (4): 1258–65. doi:10.1016/j.jmb.2006.12.016. PMID17204286.