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鸭源H5N1亚型高致病性禽流感病毒的分离鉴定及其HA和NA基因的生物信息分析
引用本文:孙恩成,刘春国,侯喜林,刘明,朴范泽.鸭源H5N1亚型高致病性禽流感病毒的分离鉴定及其HA和NA基因的生物信息分析[J].中国畜牧兽医,2009,36(2):62-67.
作者姓名:孙恩成  刘春国  侯喜林  刘明  朴范泽
作者单位:(1.黑龙江八一农垦大学 动物科技学院,大庆 163319;2.中国农业科学院哈尔滨兽医研究所 兽医生物技术国家重点实验室 禽流感国家参考实验室,哈尔滨 150001) 
基金项目:国家科技支撑计划,黑龙江省自然科学基金 
摘    要:分离到1株 H5N1亚型高致病性禽流感病毒, 经序列测定发现HA蛋白裂解位点上插入多个连续的碱性氨基酸(PQREIRRKKR*G),从分子上证实是一株高致病性禽流感病毒。核酸序列比较分析结果表明,分离的流感病毒HA基因与A/duck/VietNam/Ncvd1/2002(H5N1)同源率最高,达到98.8%;NA基因与A/duck/VietNam/Ncvd1/2002(H5N1) 和A/chicken/Jiangsu/cz1/2002(H5N1)同源率最高,达到98.7%。氨基酸水平上,HA与A/duck/Viet Nam/Ncvd1/2002(H5N1)同源率最高,可达99.3%;NA与A/chicken/Jiangsu/cz1/2002(H5N1)同源率最高,达98.7%。HA与NA基因的潜在糖基化位点与作者所选参比毒株一致。通过遗传进化树分析结果表明,A/duck/VietNam/Ncvd1/2002(H5N1)可能是该毒株的来源株。

关 键 词:禽流感病毒  血凝素基因  神经氨酸酶基因  生物信息分析  

Identification and Biological Information Analysis of H5N1 Subtype High Pathogenic Avian Influenza Virus Isolated from Duck
SUN En-cheng,LIU Chun-guo,HOU Xi-lin,LIU Ming,PIAO Fan-ze.Identification and Biological Information Analysis of H5N1 Subtype High Pathogenic Avian Influenza Virus Isolated from Duck[J].China Animal Husbandry & Veterinary Medicine,2009,36(2):62-67.
Authors:SUN En-cheng  LIU Chun-guo  HOU Xi-lin  LIU Ming  PIAO Fan-ze
Institution:(1.Heilongjiang August First Land Reclamation University, Academy of Animal Science and Technology, Daqing 163319, China; 2.Animal Influenza Laboratory of the Ministry of Agriculture, National Key Laboratory of Veterinary Biotechnology, Harbin Veterinary Research Institute of Chinese Academy of Agricultural Sciences, Harbin 150001, China)
Abstract:A H5N1 subtype avian influenza virus isolated from duck belongs to high pathogenic avian influenza virus.HA and NA gene of the solated strain shares 98.8% and 98.7% nucleotide sequence identity to the HA gene of A/duck/VietNam/Ncvd1/2002(H5N1) and the NA gene of A/duck/VietNam/Ncvd1/2002(H5N1) and A/chicken/Jiangsu/cz1/2002(H5N1),and shares 99.3% and 98.7% amino acid sequence identity to the HA protein of A/duck/Viet Nam/Ncvd1/2002(H5N1) and the NA protein of A/chicken/Jiangsu/cz1/2002(H5N1).There is severa...
Keywords:avian influenza virus  HA gene  NA gene  biological information analysis  
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