During protein synthesis the peptide bond is formed by
A)peptidyl transferase.
B)an RNA-catalyzed reaction.
C)a combination of peptidyl transferase and an RNA-catalyzed reaction.
D)hydrolysis of ATP.
E)hydrolysis of CTP.

Question

Quizplus · Accepted Answer

The peptide bond is formed by the enzyme peptidyl transferase, which is a component of the ribosome. It catalyzes the formation of a peptide bond between the amino acid in the A site of the ribosome and the growing polypeptide chain in the P site. This process does not involve RNA-catalyzed reactions or the hydrolysis of nucleotides such as ATP or CTP.

During Protein Synthesis the Peptide Bond Is Formed by