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猪流行性腹泻病毒纤突蛋白基因克隆与序列分析
引用本文:李建强,柳纪省,兰喜,程杰,杨敏,吴润,殷相平,李宝玉,李学瑞,杨彬.猪流行性腹泻病毒纤突蛋白基因克隆与序列分析[J].农业生物技术学报,2007,15(4):562-566.
作者姓名:李建强  柳纪省  兰喜  程杰  杨敏  吴润  殷相平  李宝玉  李学瑞  杨彬
作者单位:1. 甘肃农业大学动物医学院,兰州,730070;中国农业科学院兰州兽医研究所,家畜疫病病原生物学国家重点实验室,农业部畜禽病毒学重点开放实验室,兰州,730046
2. 中国农业科学院兰州兽医研究所,家畜疫病病原生物学国家重点实验室,农业部畜禽病毒学重点开放实验室,兰州,730046
3. 甘肃农业大学动物医学院,兰州,730070
基金项目:国家重点基础研究发展计划(973计划)
摘    要:对猪流行性腹泻病毒(Porcine epidemic diarrhea virus,PEDV)DX株纤突蛋白基因进行了克隆与测序。结果表明,该基因核苷酸序列长为4152bp,推导氨基酸序列为1383aa,与比较毒株氨基酸同源性都在90%以上。系统发生树分析结果表明,比较毒株可分为3个基因群,而且每个群的毒株均来自同一个国家。利用生物软件分析结果表明PEDV发生微小的变异,尤其在韩国变异明显,而DX株与中国JS-2004-2株亲缘关系很近。

关 键 词:猪源冠状病毒  猪流行性腹泻病毒  纤突蛋白基因  克隆  特征分析
文章编号:1006-1304(2007)04-0562-05
收稿时间:2006-12-18
修稿时间:2007-02-08

Cloning and Characterization Analysis of Spike Protein Gene of Porcine epidemic diarrhea virus
LI Jian-qiang,LIU Ji-xing,LAN Xi,CHENG Jie,YANG Min,WU Run,YING Xiang-ping,LI Bao-yu,LI Xue-rui,YANG Bin.Cloning and Characterization Analysis of Spike Protein Gene of Porcine epidemic diarrhea virus[J].Journal of Agricultural Biotechnology,2007,15(4):562-566.
Authors:LI Jian-qiang  LIU Ji-xing  LAN Xi  CHENG Jie  YANG Min  WU Run  YING Xiang-ping  LI Bao-yu  LI Xue-rui  YANG Bin
Institution:1. College of Vetennary Medicine, Gansu Agricultural University ,Lanzhou 730070,China; 2. Key Laboratory of Animal Virology, Ministry of Agriculture, State Key Laboratory of Veterinary Etiological Biology, Lanzhou Vetednary Research Institute, Chinese Academy of Agricultural Sciences, Lanzhou 730046,China
Abstract:The spike protein gene of Porcine epidemic diarrhea virus(PEDV)DX strain was cloned and sequenced.The results showed that the nucleotide sequence of the gene was 4 152 bp in length and encoding a protein of 1 383 aa,the homology of amino acids between it and other PEDV strains exceeded 90%.The results of phylogenetic tree analysis showed that all the reference PEDV isolates could be divided into 3 genetic groups and each of them in the same group came from the same country.Bio-soft analysis showed that PEDV mutated slowly,especially in Korea.And DX strain and JS-2004-2 strain in China had a closed relationship.
Keywords:Porcine epidemic diarrhea virus  spike gene  cloning  characterization analysis
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