Translations:Prohormone/8/en
For peptide hormones, the conversion process from prohormone to hormone (pro-protein to protein) typically occurs after being exported to the endoplasmic reticulum and often requires multiple processing enzymes. Proamylin, which is cosecreted with proinsulin, requires the above three factors and an amidating monooxygenase to convert itself to an active hormone. Some pro-protein precursors, such as preproinsulin, also go through this process, with the added step of removing a signal peptide by signal peptidases, to convert said precursors into prohormones.