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C型产气荚膜梭菌肠毒素基因的克隆与序列分析 被引量:1

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摘要 研究参照国外发表的产气荚膜梭菌肠毒素全基因序列设计合成1对特异性引物,采用PCR技术对C型产气荚膜梭菌贵州分离株(CP2株)肠毒素基因进行扩增,将扩增产物连接到pMD18-T载体,并转化至大肠杆菌DH5α感受态细胞,提取质粒进行PCR和双酶切鉴定后测序。结果:获得的基因序列全长960bp,编码319个氨基酸。同源性分析结果表明贵州分离株CP2株与产气荚膜梭菌参考株肠毒素基因序列的核苷酸同源性为99.4%99.8%,推导氨基酸同源性为99.1%~99.7%。
出处 《黑龙江畜牧兽医》 CAS 北大核心 2009年第6期80-81,共2页 Heilongjiang Animal Science And veterinary Medicine
基金 贵州省自然科学基金项目(黔科合J字[2006]2051号)
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