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tRNA
(redirected from initiator tRNA)

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tRNA transfer RNA.
tRNA (tär-n-)
n.
One of a class of RNA molecules that transports amino acids to ribosomes for incorporation into a polypeptide undergoing synthesis. Also called transfer RNA.
tRNA
transfer RNA (ribonucleic acid).
aminoacyl-tRNA
transfer RNA to which its specific amino acid has been coupled by its specific aminoacyl-tRNA synthetase.
aminoacyl-tRNA binding site
one of two tRNA binding sites on a ribosome that holds the incoming tRNA molecule charged with an amino acid. Called also A site.
aminoacyl-tRNA synthetases
a set of enzymes that couple each of the 20 amino acids to its appropriate tRNA molecule.
initiator tRNA
a special methionine tRNA that binds to the initiation codon AUG that forms part of the initiation complex at the start of mRNA translation.
peptidyl-tRNA binding site
one of two tRNA binding sites on a ribosome that holds the tRNA that is normally linked to the polypeptide chain. Called also P site.
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