Boc-Tyr(tBu)-Aib-Glu(OtBu)-Gly-OHndi tetrapeptide yotetezedwa yomwe imagwiritsidwa ntchito pofufuza kaphatikizidwe ka peptide. Magulu a Boc (tert-butyloxycarbonyl) ndi tBu (tert-butyl) amagwira ntchito ngati magulu otchinjiriza kuti asatengere mbali pakupanga ma peptide. Kuphatikizidwa kwa Aib (α-aminoisobutyric acid) kumathandizira kupanga mapangidwe a helical ndikuwonjezera kukhazikika kwa peptide. Kutsatizana kwa peptide kumeneku kumaphunziridwa chifukwa cha kuthekera kwake pakuwunika kogwirizana, kupindika kwa peptide, komanso ngati chomangira pakupanga ma peptide a bioactive ndi kukhazikika kokhazikika komanso kukhazikika.