中国媒介生物学及控制杂志

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埃及伊蚊抗凝血因子Xa基因片段的克隆测序

朱礼华;赵彤言;刘先凯;董言德;陆宝麟   

  1. 军事医学科学院微生物流行病研究所全军媒介生物学重点实验室 北京100071
  • 出版日期:2001-12-20 发布日期:2001-12-20

Part Gene Sequence of Factor Xa-directed Anticoagulant from the Vector Mosqui to Aedes aegypti in China

ZHU Li-hua; ZHAO Tong-yan; LIU Xian-kai; et al   

  1. Institute of Microbiology & Epidemiology,AMMS,Beijing 100071,Chi na
  • Online:2001-12-20 Published:2001-12-20

摘要: 目的:探讨我国登革热的重要媒介蚊种埃及伊蚊唾液中的抗凝血因子Xa基因。方法:用兼并引物PCR方法从我国的埃及伊蚊基因组DNA扩增抗凝血因子Xa基因片段,克隆入测序T载体进行测序。结果:扩增出抗凝血因子Xa基因片段长度约300bp,测序后发现与报道的埃及伊蚊的cDNA基因相应序列多了一段63bp内含子,并有几个碱基和氨基酸序列变化。结论:我国海南岛的埃及伊蚊抗凝血因子Xa基因有一定差异,可能对应的是一个新的基因型。

关键词: 伊蚊属, 埃及伊蚊, 抗凝血因子Xa, 聚合酶链反应

Abstract: Objective:To study the factor Xagene-directed anti-coagulant(AFXA) from Aedes aegypti in China in molecular biologic levels.Methods:Degenerate oligo-nucleotide primers PCR was used to amplify from its genome DNA,then the amplified fragment was cloned into T vector to sequence.Results:A 300bp AFXA gene fragments was obtained and sequenced.There was a 63bp intron in it comparing with cDNA sequence.Conclusion:This gene fragment from Haikou strain may be a new gene type of factor Xagene-directed anti-coagulant.