›› 2012, Vol. 39 ›› Issue (12): 51-55.

• 生物技术 • 上一篇    下一篇

1型鸭疫里氏杆菌的分离鉴定及其ompA基因B细胞表位预测

余波, 徐景峨, 王璇, 谭诗文   

  1. 贵州省畜牧兽医研究所,贵州贵阳 550005
  • 收稿日期:2012-05-14 出版日期:2012-12-20 发布日期:2012-12-19
  • 通讯作者: 徐景峨(1981-),女,助理研究员,硕士,主要从事兽医微生物研究。E-mail:xje0809@163.com E-mail:xje0809@163.com
  • 作者简介:余波(1981-),男,四川人,助理研究员,硕士,主要从事兽医微生物研究。
  • 基金资助:
    贵州省科学技术基金项目(黔科合J字(2008)2136);贵州省农业攻关项目(黔科合NZ字(2012)3026号);贵州省畜禽健康养殖技术创新能力建设项目(黔科合院所创能(2010)4004);中央补助地方科技基础条件专项基金项目(黔科条中补(2010)4001)。

Isolation and Identification of Riemerella anatipestifer Serotype 1 and Prediction of Epitopes on B Cell of ompA Gene

YU Bo, XU Jing-e, WANG Xuan, TAN Shi-wen   

  1. Guizhou Institute of Animal Husbandry and Veterinary Medicine,Guiyang 550005,China
  • Received:2012-05-14 Online:2012-12-20 Published:2012-12-19

摘要: 本研究从贵州发病鸭中分离到1株致病菌,经生化试验、16S rRNA序列分析、血清学试验和动物回归试验,鉴定为1型鸭疫里氏杆菌(RA),药敏试验结果表明,其对头孢拉定、头孢曲松钠、头孢噻肟和氟苯尼考高度敏感;同时根据GenBank中鸭疫里氏杆菌ompA基因序列,设计1对引物,成功克隆出鸭疫里氏杆菌ompA基因,扩增产物大小为1149 bp。采用DNAStar Protean程序,综合运用二级结构、亲水性、可塑性和抗原性指数等参数,对鸭疫里氏杆菌ompA基因的氨基酸序列进行了B细胞表位预测,为进一步研究鸭疫里氏杆菌表位疫苗和分子诊断技术的建立奠定基础。

关键词: 鸭疫里氏杆菌; ompA基因; B细胞表位预测

Abstract: One bacterium strain was isolated from incidence duck in Guizhou,tested by physiological and biochemical characteristics,16S rRNA gene sequencing,recursive infection experiment and antibiotic sensitivity as RA serotype 1.According to the gene sequences in GenBank of RA,one pairs of specific primer was designed for amplifying the specific fragments of ompA.The specific bands of 1149 bp were amplified. Using DNAStar Protean software,the amino acid sequence encoded by ompA gene of RA was analyzed in secondary structure,hydrophilicity,flexibility and antigenic indexes to predict B cell epitopes,which was to lay the foundation for further study RA epitope vaccines and molecular diagnostic techniques to establish.

Key words: Riemerella anatipestifer; ompA gene; B cell epitope prediction

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