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首页> 外文期刊>Nucleic acids research >Expression of antigenic regions of a trypanosome variable surface glycoprotein in E. coli using Bal-31 nuclease digestion
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Expression of antigenic regions of a trypanosome variable surface glycoprotein in E. coli using Bal-31 nuclease digestion

机译:使用BAL-31核酸酶消化的大肠杆菌中胰蛋白酶体可变表面糖蛋白在大肠杆菌中的抗原区的表达

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We have used the expression of a trypanosome variable surface glycoprotein (VSG) in E. coli to produce VSG serotype-specific antisera which have none of the cross-reacting specificities characteristic of antisera prepared against purified VSGs. This was accomplished by treating restriction fragments of VSG cDNAs with Bal-31 nuclease to facilitate expression of their open reading frames in the E. coli expression vector, pMRlOO (4). The resultant VSG-β-galactosidase fusion proteins possess various antigenic regions of the original VSG. This provides a rapid means for producing VSG-specific antisera for reagent use and has the capability of large scale production of antigen for immunological investigation.
机译:我们使用了大肠杆菌中锥虫组可变表面糖蛋白(VSG)的表达,以产生VSG血清型抗血清,其缺任何与纯化的VSG制备的抗血清的交叉反应特异性。这是通过用BAL-31核酸酶处理VSG CDNA的限制片段来实现,以促进其在大肠杆菌表达载体中的开放阅读框架的表达,PMRLOO(4)。得到的VSG-β-半乳糖苷酶融合蛋白具有原始VSG的各种抗原区域。这提供了一种用于生产VSG特异性抗血清的快速方法,用于试剂使用,具有大规模生产抗原用于免疫学研究。

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