Cloning and Expressing FM DV Non-Structural Protein 3abc Gene in E.cofi
Abstract: Abstract:The Foot and mouth disease virus(FMDV、non.structural protein 3ABC can be used for diferentiation of infection from vaccination.The primers of 3ABC gene were designed an d synthesized, an d the 5’end an d 3’end of primers were adding the sequence of restriction endonuclease BamH I an d Hind III respectively.The 3ABC gene coding region was obtained from the FMDV genome RNA by RT.PCR.Th e amplified fragment was cloned into T.vector.The recombinan t plasmid pT.3ABC was digested with BamH I and ,ld III an d then cloned into pET32a.Th e recombinan t plasmid pET3ABC was transformed into BL21(DE3)plysS and the target protein was induced by IP1℃ .Expression of NSP.3ABC protein was examined and identificated bV SDS.PAGE,W_estem blotting an d EU SA.Th e results showed that recombinan t plasmid pET3ABC was constructed an d the NSP.3ABC was expressed in Ecoli successfullv.A special electrophoretic ban d in SDS.PAGE (56kDa)Was noted,Westem bloting showed it Can react witIl FM DV infected an imal serum ,and ELISA result showed the expressed protein Can be used to diferentiate the infection from vaccination.