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首页> 外文期刊>Journal of Clinical Microbiology >Diagnostic Potential of Toscana Virus N Protein Expressed in Escherichia coli
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Diagnostic Potential of Toscana Virus N Protein Expressed in Escherichia coli

机译:在大肠杆菌中表达的托斯卡纳病毒N蛋白的诊断潜力

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The nucleocapsid (N) protein of the Toscana (TOS) virus was expressed in Escherichia coli by using a pET15b vector. The recombinant protein was purified by affinity chromatography and was characterized by sodium dodecyl sulfate-polyacrylamide gel electrophoresis, immunoblotting, and enzyme immunoassay (EIA). The recombinant antigen was reactive with positive human sera, and the reactivity correlated very well (r = 0.9) with that of a whole-virus antigen when tested by EIA with 30 TOS virus-positive and 30 TOS virus-negative serum samples. The results demonstrate that the recombinant N protein can be easily produced in a procaryotic system and used for diagnostic assays for TOS virus immunity.
机译:通过使用pET15b载体在大肠杆菌中表达了Toscana(TOS)病毒的核衣壳(N)蛋白。通过亲和层析纯化重组蛋白,并通过十二烷基硫酸钠-聚丙烯酰胺凝胶电泳,免疫印迹和酶免疫测定(EIA)对其进行表征。重组抗原与阳性人血清具有反应性,当用30个TOS病毒阳性和30个TOS病毒进行EIA测试时,该反应性与全病毒抗原的反应性非常好( r = 0.9) -阴性血清样品。结果表明,重组N蛋白可以在原核系统中容易产生,并用于TOS病毒免疫性的诊断测定。

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