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Sequencing and comparative analysis of a pig bovine viral diarrhea virus genome

文献类型： 外文期刊

作者： Xu, Xingran 1 ; Zhang, Qingchan 2 ; Yu, Xinglong 2 ; Liang, Long 2 ; Xiao, Chang 2 ; Xiang, Hua 3 ; Tu, Changchun;

作者机构： 1.Acad Mil Med Sch, Inst Mil Vet, Changchun 130062, Peoples R China

2.Acad Mil Med Sch, Inst Mil Vet, Changchun 130062, Peoples R China; Acad Mil Med Sci, Inst Biotechnol, Beijing 100850, Peoples R China; Guangdong Acad Agr Sci, Inst Vet Med, Guangzhou 510640, Peoples R China

3.Acad Mil Med Sch, Inst Mil Vet, Changchun 130062, Peoples R China; Acad Mil Med Sci, Inst Biotechnol, Beijing 100850, Peoples

关键词： pig BVDV;complete genome;sequencing;phylogeny

期刊名称：VIRUS RESEARCH （ 影响因子：3.303； 五年影响因子：3.445 ）

ISSN： 0168-1702

年卷期： 2006 年 122 卷 1-2 期

页码：

收录情况： SCI

摘要： In present study, we report the first complete genomic sequence of pig bovine viral diarrhea (BVD) virus, that of strain ZM-95, which is 12,220 nucleotides long and contains short 5' and 3' non-coding regions and one open reading frame encoding a large polyprotein with 28 potential N-glycosylation sites (Asn-X-Ser or Asn-X-Thr). Within the non-structural protein encoding region, no foreign nucleotide insertions was found as those usually observed for cytopathogenic BVDV-1, but close to the 3'-terminal of the capsid protein (1119-1124 bp) it contains a short insertion of a six nucleotide sequence (CTCACA). Three hypervariable regions were identified in the polyprotein-encoding region, with one of them comprising a sequence motif encoding a unique five amino acid peptide HYKKK in glycoprotein E2 gene. The genomic comparison and phylogenetic analyses showed that ZM-95 should be classified into BVDV-1, but was genetically divergent from other pestiviruses sequenced to date since its highest genetic similarity was only 76.6% (with SD-1), therefore, placed as a novel subgroup of BVDV-1. (c) 2006 Elsevier B.V. All rights reserved.

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