C-Peptide (C-Peptide) inobatanidza peptide inoumbwa ne31 amino acids ine molecular huremu hunosvika mazana matatu nemakumi maviri nenomwe Daltons. Iyo pancreatic β-masero epancreas anogadzira proinsulin, inova yakareba kwazvo protein chain. Proinsulin yakaputsika kuita zvikamu zvitatu pasi pekuita kwema enzymes, uye zvikamu zvepamberi uye kumashure zvakabatanidzwa zvakare kuti ive insulini, iyo inoumbwa neketani yeA uye B, nepo chikamu chepakati chakazvimirira uye chinozivikanwa seC-peptide. Insulin neC-peptide zvakavanzwa muzvikamu zvakaenzana, uye mushure mekupinda muropa, insulini yakawanda haina kuvharwa nechiropa, nepo C-peptide isingawanzo kutorwa nechiropa, pamwe neC-peptide degradation inononoka kupfuura insulini, saka kuwanda kweC-peptide muropa kwakakwirira kudarika iyo ye insulin basa, kazhinji inodarika C-peptide nguva ye pancreatic 5. β-masero. Kuyera kweyero yeC-peptide inogona kushandiswa pakurongwa kwechirwere cheshuga mellitus uye kunzwisisa basa repancreatic β-masero evarwere vane chirwere cheshuga mellitus. Chiyero cheC-peptide chinogona kushandiswa kurongedza chirwere cheshuga uye kunzwisisa basa repancreatic β-cell muvarwere vane chirwere cheshuga. Parizvino, nzira dzekuyera C-peptide dzinoshandiswa zvakanyanya mumakiriniki ekurapa dzinosanganisira radioimmunoassay, enzyme immunoassay, electrochemiluminescence, chemiluminescence.