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金黄色葡萄球菌SPA基因的克隆、表达及纯化 被引量:5

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摘要 目的:构建携带StaphylococcalproteinA(SPA)基因的原核表达载体,诱导表达具有活性的SPA。方法:用PCR从金黄色葡萄球菌基因组中扩增SPA基因并克隆入pET32a(+)载体中,在大肠杆菌BL21〈DE3〉中表达。表达产物经亲和层析进行纯化。结果:所构建的原核表达载体为高效表达载体,工程菌表达的SPA约占菌体总蛋白的40%,经亲和层析纯化后获得SPA,纯度达到99%。结论:成功地建立了制备及纯化SPA的方法,为SPA大量生产以及构建SPA融合表达体系奠定了基础。
出处 《细胞与分子免疫学杂志》 CAS CSCD 北大核心 2006年第6期816-818,共3页 Chinese Journal of Cellular and Molecular Immunology
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参考文献7

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共引文献55

同被引文献38

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