Peptidyl transferase is an enzymatic activity that
A) Catalyzes the release of polypeptides from the ribosomes
B) Is found in an rRNA component of ribosomes
C) Catalyzes the nucleophilic attack of the A site $\alpha$-amino group on the carbonyl carbon of the P side amino acid
D) Catalyses peptide bond formation
E) All of the above are correct

Question

Peptidyl transferase is an enzymatic activity that 
A) Catalyzes the release of polypeptides from the ribosomes
B) Is found in an rRNA component of ribosomes
C) Catalyzes the nucleophilic attack of the A site $\alpha$-amino group on the carbonyl carbon of the P side amino acid
D) Catalyses peptide bond formation
E) All of the above are correct

Quizplus · Accepted Answer

Peptidyl transferase is an enzymatic activity associated with the ribosome, specifically found in the ribosomal RNA (rRNA) component. It catalyzes peptide bond formation during protein synthesis by facilitating the nucleophilic attack of the amino group in the A site on the carbonyl carbon of the amino acid in the P site. This activity is crucial for the elongation phase of protein synthesis, leading to the release of polypeptides from the ribosome.

Peptidyl Transferase Is an Enzymatic Activity That A) Catalyzes α\alphaα

Peptidyl Transferase Is an Enzymatic Activity That
A) Catalyzes $\alpha$