The antigens that bind to MHC proteins are always short peptides, 8-10 amino acids long for MHC Class I, and up to 25 or so for MHC Class II.
Ti antigeni koji se vezuju za MHC proteine su uvek kratki peptidi, 8-10 aminokiselina dugački za MHC klasu I, i do oko 25 za MHC klasu II.