›› 2010, Vol. 37 ›› Issue (6): 55-58.

• 生物技术 • 上一篇    下一篇

犬型钩端螺旋体外膜蛋白OmpL1基因的克隆与序列分析

陈方良1,范泉水2,邱薇2,尹革芬3,星云1   

  1. (1.公安部昆明警犬基地, 昆明 650204; 2.成都军区联勤部军事医学研究所, 昆明 650032;3.云南农业大学, 昆明 650201)
  • 收稿日期:1900-01-01 修回日期:1900-01-01 出版日期:2010-06-20 发布日期:2010-06-20
  • 通讯作者: 范泉水

Cloning and Analysis of the Sequence of Outer Membrance Protein Gene ofa Serovar Leptospire canicola Interrogans

Fang-liang1, FAN Quan-shui2, QIU Wei2, YIN Ge-fen3, XING Yun1   

  1. (1.Kunming Police-dog Base of the Ministry of Public Security, Kunming 650204, China; 2.Centre for Disease Prevention and Control, Chengdu Military Region, Kunming 650032, China; 3.Yunnan Agricultural University, Kunming 650201, China)
  • Received:1900-01-01 Revised:1900-01-01 Online:2010-06-20 Published:2010-06-20
  • Contact: FAN Quan-shui

摘要: 作者以犬型钩端螺旋体菌株的DNA为模板,采用PCR方法扩增目的基因OmpL1,克隆到pVAX1载体上,并对OmpL1基因测序后进行序列分析。结果获得960 bp片段,DNA序列分析结果表明,该菌株的OmpL1基因与报道的七日热型、秋季型、波摩那型、澳洲型钩体的OmpL1基因核苷酸序列相似性分别为99.38%、93.77%、99.58%、99.38%,氨基酸序列相似性分别为100%、95%、100%、100%。证明OmpL1为致病性钩体所具有的保守性抗原成分,可在钩体病的预防和诊断中发挥重要作用。

关键词: 犬型钩体; 外膜蛋白; OmpL1基因; 克隆; 序列分析

Abstract: In this study, the OmpL1 was amplified by PCR from a serovar Leptospire canicola interrogans, and it was cloned into plasmid pVAX1,then sequence analysis was done. These all got an expectation about the 960 bp of special tape, it’s sequence analysis and gene comparision with Leptospire hebdomadis,Leptospire autumnalis,Leptospire pomona and Leptospire australis, the homology of nucleotide sequences was 99.38%,93.77%,99.58% and 99.38%, the homology of deduced amino acid was 100%,95%,100% and 100%. It indicated that OmpL1 was a conserved antigen among the pathogenic Leptospira species, fusion protein OmpL1 might play an important role in diagnosis and prevention of Loptosirosis.

Key words: Leptospire canicola; outer membrance protein gene; OmpL1 gene; clone; sequence analysis

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