Which of the following is a mechanism for regulating protein activity?
A)proteolytic processing
B)phosphorylation/dephosphorylation
C)ligand binding
D)all of the above

Question

Quizplus · Accepted Answer

Proteolytic processing, phosphorylation/dephosphorylation, and ligand binding are all mechanisms for regulating protein activity. Proteolytic processing involves the cleavage of a precursor protein to produce an active protein product. Phosphorylation involves the addition of a phosphate group to a specific amino acid residue, which can either activate or inhibit protein activity. Dephosphorylation is the removal of a phosphate group, which can also regulate protein activity. Ligand binding involves the binding of a molecule, such as a hormone or neurotransmitter, to a specific receptor site on a protein, which can activate or inhibit protein activity.

Which of the Following Is a Mechanism for Regulating Protein