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首页> 外文期刊>Journal of Clinical Microbiology >Use of rubella virus E1 fusion proteins for detection of rubella virus antibodies.
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Use of rubella virus E1 fusion proteins for detection of rubella virus antibodies.

机译:风疹病毒E1融合蛋白在检测风疹病毒抗体中的用途。

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Two glutathione S-transferase fusion proteins containing 44 (p1503) and 75 (p1509) amino acid residues of the rubella virus E1 glycoprotein were expressed in Escherichia coli with the aim of producing a recombinant rubella virus antigen for use in serological assays. p1503 contained three neutralizing and hemagglutinating epitopes (G. M. Terry, L. M. Ho-Terry, P. Londesborough, and K. R. Rees, Arch. Virol. 98:189-197, 1988); p1509 contained the putative neutralization domain described by Mitchell et al. (L. A. Mitchell, T. Zhang, M. Ho, D. Decarie, A. Tingle, M. Zrein, and M. Lacroix, J. Clin. Microbiol. 30:1841-1847, 1992) in addition to the three epitopes present in p1503. Both fusion proteins were soluble and affinity purified on glutathione-Sepharose 4B. In Western blots (immunoblots), p1503 and p1509 reacted with human sera containing rubella virus-specific immunoglobulin G. When used as antigens in indirect enzyme immunoassays to detect rubella virus-specific immunoglobulin G, p1503 correctly identified the rubella virus antibody status of 43 (76.8%) and p1509 correctly identified that of 48 (85.7%) of 56 serum samples received for routine rubella virus antibody screening. The results obtained with p1509 compare well with those obtained with a latex agglutination assay.
机译:在大肠杆菌中表达了两个包含风疹病毒E1糖蛋白的44个(p1503)和75个(p1509)氨基酸残基的谷胱甘肽S-转移酶融合蛋白,目的是生产用于血清学检测的重组风疹病毒抗原。 p1503包含三个中和和血凝的表位(G.M.Terry,L.M.Ho-Terry,P.Londesborough和K.R.Rees,Arch.Virol.98:189-197,1988); p1509包含Mitchell等人描述的推定中和结构域。 (LA Mitchell,T。Zhang,M。Ho,D。Decarie,A。Tingle,M。Zrein和M. Lacroix,J。Clin。Microbiol。30:1841-1847,1992),以及目前存在的三个表位在p1503中。两种融合蛋白都是可溶的,并在谷胱甘肽-Sepharose 4B上亲和纯化。在Western印迹法(免疫印迹)中,p1503和p1509与包含风疹病毒特异性免疫球蛋白G的人血清反应。当在间接酶免疫测定法中用作检测风疹病毒特异性免疫球蛋白G的抗原时,p1503正确鉴定出风疹病毒抗体状态为43( 76.8%)和p1509正确识别了常规风疹病毒抗体筛查所收到的56个血清样品中的48个(85.7%)。用p1509获得的结果与通过乳胶凝集测定获得的结果相当好。

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