Sunadaran sarrafa siginar PII sun yadu sosai a cikin prokaryotes da shuke-shuke inda suke sarrafa yawan halayen anabolic.Ingantacciyar haɓakar haɓakar metabolites tana buƙatar annashuwa madaidaicin da'irar sarrafa salula.Anan mun nuna cewa maye gurbi guda ɗaya a cikin furotin mai siginar PII daga cyanobacterium Synechocystis sp.PCC 6803 ya isa ya buɗe hanyar arginine da ke haifar da tarawar cyanophycin biopolymer (multi-L-arginyl-poly-L-aspartate).Wannan samfurin yana da sha'awar nazarin halittu a matsayin tushen amino acid da polyaspartic acid.Wannan aikin yana misalta sabon tsarin injiniyan hanya ta hanyar ƙirƙira sunadaran siginar PII da aka keɓance na musamman.Anan, injiniyan Synechocystis sp.Tsarin PCC6803 tare da maye gurbi na PII-I86N akan tarin arginine ta hanyar kunna maɓalli na maɓallin enzyme N-acetylglutamate kinase (NAGK). fiye da a cikin nau'in daji.Sakamakon haka, nau'in BW86 ya tara har zuwa 57% cyanophycin kowace busasshiyar tantanin halitta a ƙarƙashin yanayin da aka gwada, wanda shine mafi girman yawan amfanin cyanophycin da aka ruwaito zuwa yau.Iri BW86 ya samar da cyanophycin a cikin kewayon kwayoyin halitta na 25 zuwa> 100 kDa;nau'in daji ya samar da polymer a cikin kewayon 30 zuwa> 100 kDa. Babban yawan amfanin ƙasa da yawan ƙwayar kwayoyin halitta na cyanophycin da aka samar da nau'in BW86 tare da ƙananan abubuwan da ake bukata na cyanobacteria ya sa ya zama wata hanya mai ban sha'awa don samar da ilimin halittu na cyanophycin.Wannan binciken ya kuma nuna yuwuwar aikin injiniyar hanyar rayuwa ta amfani da furotin mai siginar PII, wanda ke faruwa a cikin ƙwayoyin cuta da yawa.
