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Chinese Journal of Endemiology ; (6): 364-367, 2011.
Article in Chinese | WPRIM | ID: wpr-642473

ABSTRACT

Objective Schistasoma japonicum(S.japonicum)lysophospholipase gene(Sjl539)from cDNA of S japonicum adult worms was amplified and subcloned into eukaryotic expression vector pcDNA3.1(+)for expression of recombinant antigen and immunogenicity analysis.Methods Total RNA of S.japonicum was extracted to generato cDNA by RT-PCR.The Sj1539 gent was amplified.The DNA fragment was subcloned into eukaryofic expression vector pcDNA3.1(+)following insertion and amplification in pGEM-T.The recombinant plasmid was transfected into human cervical carcinoma cell strain(Hela cells)and expression products were identified by Western blotting.Results The size of PCR product was approximately 684 bp.It was confirmed that Sj1539 gene had been inserted successfully by the recombinant plasmid digested with two enzymes and PCR.It was verified that the expression product could react with S.japonicum-infected rabbit serum by Western blotting and the molecular weight was approximately 25×103.Conclusions The eukaryotie expression vector carrying Sj1539 gene has been established and the expression product has been obtained.

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