TRNA nucleotidyl transferase, CCA-adding, 1, or, TRNT1, is a human gene. Other names include: CCA tRNA nucleotidyltransferase 1, mitochondrial; mt CCA-adding enzyme; mt tRNA CCA-diphosphorylase; mt tRNA CCA-pyrophosphorylase; mt tRNA adenylyltransferase; CCA tRNA nucleotidyltransferase 1, mitochondrial ; Mitochondrial tRNA nucleotidyl transferase, CCA-adding; CGI-47; MtCCA; SIFD. The encoded protein is an enzyme with an amino acid length of 434 and a mass of 50.1 kDa. TRNA nucleotidyl transferase, CCA-adding, 1 is a member of the TRNA nucleotidyltransferase/poly(A) polymerase family. This gene shares homology with other species, including: Mouse, Rat, Zebrafish, Frog, Chicken.