A nucleophilic amino group of the amino acid bound to the 3 ^' terminus of A-site tRNA attacks the electrophilic carbonyl carbon in the ester bond between the 3 ^' terminus of P-site tRNA and its bound amino acid during the step of translation.

Question

Quizplus · Accepted Answer

The step described in the sentence is the peptidyl transferase reaction, which occurs during elongation. During this step, the amino acid at the A site attacks the carbonyl carbon of the ester bond between the P-site tRNA and its bound amino acid, forming a peptide bond and transferring the growing polypeptide chain to the amino acid on the A-site tRNA.

A Nucleophilic Amino Group of the Amino Acid Bound to the 3