Boc-Tyr (tBu) -Aib-Glu (OtBu) -Gly-OH

Boc-Tyr (tBu) -Aib-Glu (OtBu) -Gly-OHni tetrapeptide ikingiwe ikoreshwa mubushakashatsi bwa peptide. Amatsinda ya Boc (tert-butyloxycarbonyl) na tBu (tert-butyl) akora nk'amatsinda arinda amatsinda kugirango akumire ingaruka mugihe cyo guteranya urunigi rwa peptide. Kwinjizamo Aib (α-aminoisobutyric aside) bifasha gutera ibyubaka no kongera peptide itajegajega. Uru ruhererekane rwa peptide rwizwe kubushobozi bwarwo mu isesengura rihuza, gupfunyika peptide, no kuba inyubako yo guteza imbere peptide ya bioaktike ifite imbaraga zihamye kandi zihariye.