Friday, December 12, 2014

Blog of Translation

ACT I: Initiation

All translation components come together, a small ribosomal subunit binds to the messenger-RNA, and a tRNA with the anticodon of UAC binds with the codon AUG on the messenger-RNA.Then, the large ribosomal attached, the three sites, the A, P,E start to accept tRNAs. P site will contain the tRNA with growing peptide on it, and the A site is for the next tRNA to be added.

ACT II: Elongation



The protein synthese will occur. As more tRNAs come in in the A site, the older ones will pass on their amino acid to the new tRNA and exist by the E site. The transport is created by the peptide bond.

ACT III: Termination

The translation will stop when it reeaches a STOP codon, which is either a UAA, UAG, or UGA. Then, a protein, called release factor will cleave the polypeptide from the last tRNA.




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