ZHAO Hongxin, LAI Qiheng, YANG Cheng, et al. Isolation of phoC from Enterobacter aerogenes and its characteristics on enzymatic phosphorylation of inosine by fusing PhoC with MBP[J]. CIESC Journal, 2008, (8): 2071-2078.
ZHAO Hongxin, LAI Qiheng, YANG Cheng, et al. Isolation of phoC from Enterobacter aerogenes and its characteristics on enzymatic phosphorylation of inosine by fusing PhoC with MBP[J]. CIESC Journal, 2008, (8): 2071-2078.DOI:
Acid phosphotransferase of E.aerogenes IAM1183 is of high potential for industrial application due to high regiospecificity of the nucleoside phosphorylating activity to the C-5′-position.In this study
the phoC gene was isolated and sequenced from E.aerogenes IAM1183 and fused with the MBP (maltose binding protein) gene to construct expressing vector pMKL-c2x-phoC named as pcphoC.The pcphoC was transferred into different host strains for the expression of the MBP-Pho fusion protein.It was found that the transformed E.coli TB1I (pcphoC) exhibited the highest phosphotransferase activity.The hydrolysis activity was lower than that of the original strain.And the optimum pH was 6.7 in the vicinity of neutral.