Which statement about posttranslational modifications of proteins is false?
A) They can affect the activity of an enzyme.
B) They may operate in signal transduction.
C) They can include the addition of polysaccharides to proteins.
D) They can include the cleavage of signal sequences.
E) They are not directed by the sequence of the protein.

Question

Quizplus · Accepted Answer

Posttranslational modifications of proteins are directed by the sequence of the protein. The sequence of the protein determines which modifications can occur and where they occur on the protein. Therefore, statement E is false. Statements A, B, C, and D are true.

Which Statement About Posttranslational Modifications of Proteins Is False