Entity
Transfer RNA
Adaptor RNA that carries a specific amino acid to the ribosome during translation.
It is a small RNA molecule that acts as an adaptor in translation: it carries a specific amino acid to the ribosome and pairs it with the corresponding codon of the messenger RNA through its anticodon.
Each of the twenty amino acids has at least one specific transfer RNA, charged by its corresponding aminoacyl-tRNA synthetase; correct codon-anticodon pairing is the basis of the fidelity of the genetic code.
The video shows how a special transfer RNA, charged with formylmethionine, settles into the start site, and how, once translation is underway, successive transfer RNAs enter through the A site carrying an amino acid, occupy the P site while holding the growing chain, and finally leave the ribosome through the E site once their job is done.
Relations
- Transfer RNA → delivers amino acids to → Ribosome
Evidence
Sources · original ES transcript
- The Rule Behind All Life | The Central Dogma16:04
Aquí es donde llega el nuevo RNA de transferencia, que trae consigo un aminoácido y se acopla al codón correspondiente del ARN mensajero mediante su anticodón.
- The Rule Behind All Life | The Central Dogma16:04
- Aminoacyl-tRNA synthetases → charges → Transfer RNA
Evidence
Sources · original ES transcript
- The Rule Behind All Life | The Central Dogma18:59
Cada una tiene dos sitios de reconocimiento, uno para un aminoácido y el otro para el RNA de transferencia que le corresponde. Y los une.
- The Rule Behind All Life | The Central Dogma18:59
Sources · original ES transcript
- The Rule Behind All Life | The Central Dogma15:27
Justo en ese sitio se acomoda un RNA de transferencia especial que lleva el aminoácido formilmetionina.
- The Rule Behind All Life | The Central Dogma16:04
Aquí es donde llega el nuevo RNA de transferencia, que trae consigo un aminoácido y se acopla al codón correspondiente del ARN mensajero mediante su anticodón.
- The Rule Behind All Life | The Central Dogma17:06
En este punto, el RNA de transferencia ya ha cumplido su función y abandona el ribosoma, dejando libre el sitio P para el RNA de transferencia