Abstract
The RNA synthesis of porcine epidemic diarrhea virus (PEDV) is a sophisticated process performed by a multilingual viral replication complex, together with cellular factors. A key enzyme of this replication complex is RNA-dependent RNA polymerase (RdRp). However, there is limited knowledge about PEDV RdRp. In our present study, a polyclonal antibody against RdRp was prepared by using a prokaryotic expression vector pET-28a-RdRp to study the function of PEDV RdRp and provide a tool to investigate PEDV pathogenesis. In addition, the enzyme activity and half-life of PEDV RdRp were investigated. The result showed that the polyclonal antibody against PEDV RdRp was successfully prepared and was able to be used to detect PEDV RdRp by immunofluorescence and western blotting. Additionally, enzyme activity of PEDV RdRp reached nearly 2 pmol/μg/h and the half-life of PEDV RdRp was 5.47 h.
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