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首页> 外文期刊>Cellular immunology >Amino acid at position 176 was essential for porcine reproductive and respiratory syndrome virus (PRRSV) non-structural protein 1 alpha (nsp1 alpha) as an inhibitor to the induction of IFN-beta
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Amino acid at position 176 was essential for porcine reproductive and respiratory syndrome virus (PRRSV) non-structural protein 1 alpha (nsp1 alpha) as an inhibitor to the induction of IFN-beta

机译:176位的氨基酸对于猪生殖和呼吸综合征病毒(PRRSV)非结构蛋白1α(NSP1α)作为IFN-β诱导的抑制剂是必不可少的

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摘要

Previous studies have shown that porcine reproductive and respiratory syndrome virus (PRRSV) non-structural protein 1 alpha (nsp1 alpha) was the interferon (IFN) antagonist. However, the mechanism was unclear. In the present study, deletion of the carboxyl-terminal extension (CTE) (167-180 amino acid (aa)) made nsp1 alpha lose its inhibitory ability to the induction of IFN-beta. And a series of C-terminal truncated mutants for nsp1 alpha showed that 1-176 aa of nsp1 alpha was able to inhibit the induction of IFN-beta and deleting or mutating the amino acid F176 made nsp1 alpha not inhibit the induction of IFN-beta. In conclusion, the CTE and the amino acid F176 were critical for nsp1 alpha as the IFN antagonist and the region representing 167-176 was the minimal subunit of the CTE for nsp1 alpha to retain its suppressive activity to the induction of IFN-beta. (C) 2012 Published by Elsevier Inc.
机译:以前的研究表明,猪生殖和呼吸综合征病毒(PRRSV)非结构蛋白1α(NSP1α)是干扰素(IFN)拮抗剂。 但是,该机制尚不清楚。 在本研究中,缺失羧基 - 末端延伸(CTE)(167-180氨基酸(AA))使NSP1α失去其诱导IFN-β的抑制能力。 对于NSP1α的一系列C末端截短突变体显示,1-176 AA的NSP1α能够抑制IFN-β和缺失或突变氨基酸F176,使NSP1α不抑制IFN-β的诱导 。 总之,CTE和氨基酸F176对于NSP1α至关重要,因为IFN拮抗剂和表示167-176的区域是NSP1α的CTE的最小亚基,以将其抑制活性保持在IFN-β的诱导中。 (c)2012年由elsevier公司发布

著录项

  • 来源
    《Cellular immunology》 |2012年第2期|共7页
  • 作者单位

    Henan Agr Univ Coll Vet Med &

    Anim Sci Zhengzhou 450002 Peoples R China;

    Henan Agr Univ Coll Vet Med &

    Anim Sci Zhengzhou 450002 Peoples R China;

    Henan Agr Univ Coll Vet Med &

    Anim Sci Zhengzhou 450002 Peoples R China;

    Henan Acad Sci Henan Inst Chem Zhengzhou 450002 Peoples R China;

    Henan Acad Agr Sci Henan Prov Key Lab Anim Immunol Zhengzhou 450002 Peoples R China;

    Henan Acad Agr Sci Henan Prov Key Lab Anim Immunol Zhengzhou 450002 Peoples R China;

    Henan Acad Agr Sci Henan Prov Key Lab Anim Immunol Zhengzhou 450002 Peoples R China;

    Henan Acad Agr Sci Henan Prov Key Lab Anim Immunol Zhengzhou 450002 Peoples R China;

    Henan Acad Agr Sci Henan Prov Key Lab Anim Immunol Zhengzhou 450002 Peoples R China;

    Henan Acad Agr Sci Henan Prov Key Lab Anim Immunol Zhengzhou 450002 Peoples R China;

    Henan Agr Univ Coll Vet Med &

    Anim Sci Zhengzhou 450002 Peoples R China;

  • 收录信息
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类 细胞生物学;
  • 关键词

    Porcine reproductive and respiratory syndrome virus (PRRSV); Nonstructural protein 1 alpha; Interferon-beta;

    机译:猪生殖和呼吸综合征病毒(PRRSV);非结构蛋白1α;干扰素 - β;

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