A Posttranslational Modification Commonly Used by Signal Transduction Pathways to Regulate

Multiple Choice

A posttranslational modification commonly used by signal transduction pathways to regulate the activity of proteins is _______ of specific amino acid residues.This modification often changes the conformation of enzymes, resulting in activation (or inactivation) of the enzyme's catalytic activity.

A) glycosylation
B) proteolysis
C) splicing
D) nuclear signaling
E) phosphorylation