The CCA-adding enzyme TRNT1 (EC 2.7.7.25) is an essential enzyme that catalyzes the addition of the CCA terminus to the 3-prime end of tRNA precursors. This reaction is a fundamental prerequisite for mature tRNAs to become aminoacylated and to participate in protein biosynthesis (Lizano et al., 2007 [PubMed 17204286]).[supplied by OMIM, Aug 2009]
Function:
TRNT1 belongs to the tRNA nucleotidyltransferase/poly(A) polymerase family. It adds and repairs the conserved 3'-CCA sequence necessary for the attachment of amino acids to the 3' terminus of tRNA molecules, using CTP and ATP as substrates.
Subunit:
Monomer, and homodimer; disulfide-linked.
Subcellular Location:
Mitochondrial
Similarity:
Belongs to the tRNA nucleotidyltransferase/poly(A) polymerase family.
SWISS:
Q96Q11
Gene ID:
51095
Database links:
Entrez Gene: 51095 Human
Entrez Gene: 70047 Mouse
Entrez Gene: 312616 Rat
Entrez Gene: 415249 Zebrafish
Omim: 612907 Human
SwissProt: Q96Q11 Human
SwissProt: Q8K1J6 Mouse
SwissProt: Q4VSH2 Rat
SwissProt: Q6IQR7 Zebrafish
Unigene: 567495 Human
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