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- W1997374102 abstract "Hepatitis C virus (HCV) is a major cause of acute and chronic liver disease. Numerous screening assays based on the detection of immunoresponses to HCV structural and nonstructural proteins have been designed. Various studies have demonstrated genotype-specific differences in anti-HCV antibody responses to different HCV proteins. Full-length NS3 protease and N-terminally truncated NS5A were expressed using pET TOPO 102/D system. Antigenicity of the purified recombinant proteins was assessed by immunoblotting and indirect enzyme-linked immunosorbent assay (ELISA). Furthermore, anti-HCV antibody responses to the recombinant proteins were evaluated in three prevalent genotypes in Iran. We were able to express and purify NS5A and NS3 protease using TOPO cloning system. The HCV NS3 protease and NS5A produced in BL21 Star (DE3) was immunoreactive. Our results demonstrate that NS3 protease and NS5A have good immunoreactivity, but they are not sufficient for detecting all HCV-positive sera. No significant genotype-specific differences were detected in immunoresponses to the recombinant proteins. In conclusion, we successfully isolated, expressed, and purified substantial amount of HCV NS3 protease and N-terminally truncated NS5A, and used them as capturing antigens in a screening ELISA assay with high sensitivity, reproducibility, and specificity. Accordingly, it is well confirmed that TOPO cloning system can be used as a dynamic system in order to express higher amount of immunoreactive viral proteins." @default.
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- W1997374102 date "2014-08-01" @default.
- W1997374102 modified "2023-09-29" @default.
- W1997374102 title "Immunoreactivity assessment of hepatitis C virus NS3 protease and NS5A proteins expressed in TOPO cloning system" @default.
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- W1997374102 doi "https://doi.org/10.1016/j.jmii.2012.08.016" @default.
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