Translations:Prohormone/5/en

Function

Prohormones allow for transport and storage of usually-active proteins as inactive peptide chains, though they are much more commonly found in nature as a stable intermediate in the protein-synthesizing process of the cell. Proinsulin, for example, is seen in nature as a brief precursor to insulin, as it is produced on the ribosomes of the cell, transported to the Golgi apparatus as proinsulin, then is converted to insulin immediately after reaching the Golgi apparatus. It is also primarily stored as insulin.