Intungamubiri za PII zerekana poroteyine zikwirakwira cyane muri prokaryote no mu bimera aho bigenzura ibintu byinshi bya anabolike.Kubyara umusaruro mwinshi wa metabolite bisaba kuruhura ingirabuzimafatizo zikomeye.Hano turerekana ko ingingo imwe ihindagurika muri PII yerekana proteine kuva cyanobacterium Synechocystis sp.PCC 6803 irahagije kugirango ufungure inzira ya arginine itera kwirundanya kwa biopolymer cyanophycin (multi-L-arginyl-poly-L-aspartate).Iki gicuruzwa gifite inyungu za biotechnologie nkisoko ya acide amine na aside polyaspartic.Aka kazi karerekana uburyo bushya bwubuhanga bwo gukora inzira mugushushanya ibicuruzwa bya PII byerekana poroteyine.Hano, Synechocystis yakozwe na sp.PCC6803 ihangayikishijwe na PII-I86N ihindagurika ryinshi rya arginine ikoresheje uburyo bwo gukora enzyme yingenzi ya N-acetylglutamate kinase (NAGK) .Mu mashini ya injeniyeri BW86, muri vivo NAGK ibikorwa byariyongereye cyane bituma habaho ibintu birenga icumi bya arginine kuruta mu bwoko bw'ishyamba.Ingaruka zabyo, amananiza BW86 yakusanyije kugeza kuri 57% cyanophycine kuri selile yumye mugihe cyibizamini, akaba aribwo musaruro mwinshi wa cyanophycine uvugwa kugeza ubu.Strain BW86 yabyaye cyanophycine mubice bya molekile ya 25 kugeza> 100 kDa;ubwoko bwishyamba bwabyaye polymer murwego rwa 30 kugeza> 100 kDa.Umusaruro mwinshi hamwe na molekile nyinshi ya cyanophycine ikorwa nubwoko bwa BW86 hamwe nintungamubiri nkeya za cyanobacteria bituma iba uburyo butanga umusaruro mukubyara ikoranabuhanga rya cyanophycine.Ubu bushakashatsi burerekana kandi uburyo bushoboka bwo guhinduranya inzira ya metabolike hifashishijwe poroteyine ya PII yerekana ibimenyetso, iboneka muri bagiteri nyinshi
