【摘 要】
：
为了成功克隆外膜蛋白16(outer membrane proteins 16,Omp16)基因并对其进行原核表达,试验根据GenBank中羊布鲁氏菌M5-90株外膜蛋白Omp16基因序列(登录号:JF918760.1)设计1对
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为了成功克隆外膜蛋白16(outer membrane proteins 16,Omp16)基因并对其进行原核表达,试验根据GenBank中羊布鲁氏菌M5-90株外膜蛋白Omp16基因序列(登录号:JF918760.1)设计1对引物,从布鲁氏菌基因组中扩增出大小约为507 bp的目的基因片段,凝胶回收纯化目的片段,连接入pMD20-T质粒,转化E.coli DH5α并测序,测序正确后再亚克隆人pET-28a(+)表达载体,构建重组质粒pET-Omp16,转化人E.coli BL21(DE3),经IPTG诱导其表达,最后用Western blotting 分析方法鉴定诱导得到的蛋白.结果表明,成功构建了pET-Omp16原核表达载体,并在E.coli BL21中表达了Omp16基因,诱导得到的蛋白经鉴定与目的蛋白大小一致,证明成功表达了目的基因.
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