The Maturation of Insulin from Its Precursor (Preproinsulin) Involves

Question

The maturation of insulin from its precursor (preproinsulin) involves:
A) acetylation.
B) oxidation.
C) phosphorylation.
D) proteolysis.
E) reduction.

Accepted Answer

The maturation of insulin involves proteolysis, where the C peptide is cleaved from the precursor molecule to form insulin. This occurs in the beta cells of the pancreas before insulin is secreted into the bloodstream.