試題詳解

28. Which statement best explains why peptide bond formation does not require direct GTP hydrolysis, despite being a highly specific and directional reaction?
(A) The ribosome acts as a protein enzyme that substitutes for GTP.
(B) GTP hydrolysis is used exclusively during termination.
(C) The peptidyl transferase center positions substrates to exploit intrinsic chemical reactivity.
(D) ATP hydrolysis provides the required energy instead.
(E) Peptide bond formation is driven by elongation factor phosphorylation.