新疆绵羊种布鲁氏菌外膜蛋白OMP36的表达蛋白OMP2b基因的克隆与表达Cloning and Expressing of out Membrane Protein OMP2b from Brucella ovis in Xinjiang
滕文军,陈创夫,任雪艳,王远志,杨丽鹃,包彗芳,刘文进
摘要(Abstract):
以表达新疆绵羊种布鲁氏菌外膜抗原蛋白OMP36的表达蛋白OMP2b,探索其作为诊断抗原和分子疫苗的可能性。采用PCR扩增技术,从新疆绵羊种布鲁氏菌基因组DNA中扩增出OMP2b基因片段,将该片段克隆于原核表达载体PE-28a(+),构建成重组质粒,IPTG诱导表达,SDS-PAGE检测有无蛋白的表达。结果表明,获得长约1 083bp的PCR片段,序列分析结果与已知绵羊种OMP2b同源性达89.72%;SDS-PAGE检测表达产物,在相对分子量39 ku获得了新疆绵羊种布鲁氏菌外膜蛋白OMP36的表达蛋白OMP2b基因片段,并在大肠杆菌中实现了表达。
关键词(KeyWords): 绵羊种布鲁氏菌外膜蛋白OMP36;OMP2b基因;克隆;表达
基金项目(Foundation): 新疆兵团博士基金(兵博02)
作者(Author): 滕文军,陈创夫,任雪艳,王远志,杨丽鹃,包彗芳,刘文进
DOI: 10.13326/j.jea.2005.03.013
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