Ndị na-edozi ihe mgbaama PII na-agbasa na prokaryotes na osisi ebe ha na-achịkwa ọtụtụ mmeghachi omume anabolic.Mmepụta metabolites nke ọma nke ọma na-achọ izu ike sekit njikwa cellular siri ike.N'ebe a, anyị na-egosipụta na otu ngbanwe dị na protein nke PII sitere na cyanobacterium Synechocystis sp.PCC 6803 ezuola imeghe ụzọ arginine na-akpata nchikota biopolymer cyanophycin (multi-L-arginyl-poly-L-aspartate).Ngwaahịa a nwere mmasị biotechnological dị ka isi iyi nke amino acids na polyaspartic acid.Ọrụ a na-egosipụta usoro ọhụrụ nke injinia ụzọ site n'ichepụta protein nrịbama PII ahaziri ahaziri.N'ebe a, injinia Synechocystis sp.Udiri PCC6803 nwere ngbanwe PII-I86N n'elu-akwakọba arginine site na ntinye nke isi enzyme N-acetylglutamate kinase (NAGK) .N'ime ụdị engineered BW86, na vivo NAGK ọrụ abawanyela nke ukwuu wee bute ihe karịrị okpukpu iri karịa ọdịnaya arginine dị elu. karịa n'ụdị anụ ọhịa.N'ihi nke a, nje BW86 chịkọbara ihe ruru 57% cyanophycin kwa cell kpọrọ nkụ n'okpuru ọnọdụ nwalere, nke bụ mkpụrụ kacha elu nke cyanophycin kọrọ ruo taa.Strain BW86 na-emepụta cyanophycin n'ụdị nke molecular nke 25 ruo> 100 kDa;ụdị anụ ọhịa ahụ na-emepụta polymer na nso nke 30 ruo> 100 kDa. Mkpụrụ dị elu na nnukwu molecular mass nke cyanophycin na-emepụta site na nje BW86 tinyere obere ihe oriri na-edozi ahụ nke cyanobacteria na-eme ka ọ bụrụ ụzọ na-ekwe nkwa maka mmepụta biotechnological nke cyanophycin.Ọmụmụ ihe a na-egosipụtakwa ike nke injinia ụzọ metabolic na-eji protein akara PII, nke na-eme n'ọtụtụ nje.
