試題詳解

30. Which of the following statement is NOT true for protein splicing?
(A) ' Intein is the internal segment removed from the precursor protein
(B)The splicing junction of the precursor protein is mainly a cysteine or a serine
(C) Protein splicing is sometimes associated with pre-mRNA splicing
(D) The protein splicing reactions do not require exogenous cofactors
(E) The protein splicing reaction require energy sources such as ATP