Peptide

Peptide ("phé-phuh-thait") sī an-ki-sng tan-goân siū peptide kiat-ha̍p chok-iōng liân chò-hóe san-seng ê seng-bu̍t bu̍t-chit.

A tetrapeptide (example Val-Gly-Ser-Ala) with green marked amino end (L-valine) and
blue marked carboxyl end (L-alanine)