鲍曼不动杆菌噬菌体AB3裂解酶基因的表达及其抗菌活性分析

来源 :中华医学会呼吸病学年会——2013第十四次全国呼吸病学学术会议 | 被引量 : 0次 | 上传用户:jjjjjj8610
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目的 构建噬菌体AB3裂解酶LysAB3原核表达载体,测定LysAB3对鲍曼不动杆菌的抗菌活性.方法 PCR扩增LysAB3基因,以pET28a(+)为载体构建重组质粒,在大肠杆菌BL21 (DE3)中表达LysAB3,金属离子螯合亲和层析法纯化重组蛋白.检测LysAB3的抗菌力、裂解谱、作用的最佳pH和温度,以及对细胞壁肽聚糖的降解力.
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