【摘 要】
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为研究鸭疫里默氏杆菌(R.anatipestifer)血凝素蛋白的功能,本实验克隆表达了鸭疫里默氏杆菌血凝素基因,并对其蛋白定位进行了分析.根据鸭疫里默氏杆菌CH3株血凝素基因序列设
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为研究鸭疫里默氏杆菌(R.anatipestifer)血凝素蛋白的功能,本实验克隆表达了鸭疫里默氏杆菌血凝素基因,并对其蛋白定位进行了分析.根据鸭疫里默氏杆菌CH3株血凝素基因序列设计一对特异性引物,采用PCR扩增不同血清型鸭疫里默氏杆菌的血凝素基因,进行序列测定与分析.结果表明其血凝素基因全长1 059 bp,编码352个氨基酸.不同血清型鸭疫里默氏杆菌血凝素间的氨基酸同源性为94.1％～100％,与黄杆菌3519-10株血凝素的氨基酸同源性为68.0 ％～68.9％.采用表达的血凝素蛋白免疫鼠血清和鸭抗鸭疫里默氏杆菌阳性血清对血凝素在细菌中的定位分析表明,鸭疫里默氏杆菌血凝素可能不是一种膜蛋白,而是存在于胞浆中的一种蛋白.
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