畜牧兽医学报

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猪源新型甲型H1N1流感病毒的分离鉴定及遗传进化特点

张红娜1,苗增民2,李欣1,王浩1,周玉法4,夏咸柱3,柴同杰1*   

  1. 1. 山东农业大学 动物科技学院,泰安 271018; 2.泰山医学院 生物科学学院,泰安 271016;3.中国军事医学科学院 军事兽医研究所,长春 130000; 4. 泰安市岱岳区畜牧兽医局,泰安 271000
  • 收稿日期:2012-09-03 出版日期:2013-04-23 发布日期:2013-04-23
  • 通讯作者: 柴同杰(1957-),男,山东德州人,教授,博士生导师,主要从事环境微生物和分子细菌学研究,E-mail: chaitj117@163.com
  • 作者简介:张红娜(1986-),女,河北石家庄人,硕士生,主要从事环境微生物方向研究,E-mail: zhanghongna186982@126.com
  • 基金资助:

    国家环境保护环境微生物利用与安全控制重点实验2011年开放基金(MARC2011D061);国家科技支撑计划子课题(2010BAD04B000)

Isolation, Identification and Phylogenetic Analysis of a Novel Swine-originInfluenza A (H1N1) Virus

ZHANG Hong-na1, MIAO Zeng-min2, LI Xin1, WANG Hao1, ZHOU Yu-fa4, XIA Xian-zhu3, CHAI Tong-jie1*   

  1. 1. College of Animal Science and Veterinary Medicine, Shandong Agricultural University,Tai’an 271018 China; 2. School of Biologic Science, Taishan Medical University, Tai’an 271016,China; 3. Institute of Military Veterinary, Academy of Military Medical Sciences PLA, Changchun 130000, China; 4. Animal Husbandry Bureau of Daiyue Region, Tai’an 271000, China
  • Received:2012-09-03 Online:2013-04-23 Published:2013-04-23

摘要:

本研究旨在了解猪源新型甲型H1N1流感病毒山东分离株的遗传进化特点。对山东地区出现的疑似H1N1流感病死猪进行病料采样,然后进行病毒的分离鉴定,并对分离病毒株(A/swine/Shandong/07/2011)的HA、NA、PB2、PB1、PA、NP、NSM基因进行遗传进化分析。结果显示,该株病毒8个片段的核酸序列与A/H1N1(2009)对应序列的相似性都大于99%,并且该毒株HA蛋白的裂解位点和优先识别唾液酸α-2,6受体的位点与A/H1N1(2009)也高度一致,分别为PSIQSR↓GLFGAI和190D、225D。但是,与A/H1N1(2009)毒株的HA蛋白相比,受体结合位点处出现了重要的突变(Q226R)。该研究结果为进一步研究猪源新型甲型H1N1流感病毒的分子进化提供了重要信息。

Abstract:

The study was carried out to examine the genetic characteristics of a novel swineorigin influenza A (H1N1) virus isolated from Shandong province. Samples from suspected influenza-infected pigs were collected for viral isolation and identification, and then genetic evolution of HANAPB2,PB1,PANPNS and M of the isolate (A/swine/Shandong/07/2011) was analyzed and compared with the related influenza viruses. The results showed that sequences of 8 fragments of the isolated virus revealed >99% nucleotide identity with A/H1N1(2009) prototype strain, and its HA cleavage and receptor-binding sites were PSIQSR↓GLFGAI and 190D, 225 D, respectively, which were identifical with A/H1N1(2009) . However, compared with HA protein of A/H1N1(2009), mutation Q226R occurred in receptor binding site of the isolate. In conclusion, the results of this study provided significant information for further research on molecular evolution of novel swine-origin influenza A (H1N1) virus.

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