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An RNA-synthesizing machine

机译:RNA合成机

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摘要

Influenza A and B viruses cause a highly contagious disease in humans that results in approximately 250,000 to 500,000 deaths worldwide each year. In addition, influenza A viruses are responsible for periodic human pandemics that can have substantially higher mortality rates; the most severe pandemic, in 1918, caused around 40 million deaths. The primary defence against influenza infections has been vaccination, but antiviral drugs also play a key part, for example in the elderly, who are not well protected by vaccines. Circulating influenza viruses have developed resistance to several of the available antivirals, highlighting the need to develop new drugs. The viral RNA polymerase - the enzyme that catalyses the synthesis of virus-specific RNAs in infected cells - is an attractive target for antiviral drug development, but progress has been hampered by the absence of a three- dimensional structure of the enzyme. Two papers from the Cusack research group published in this issue (Pflug et al. on page 355 and Reich et al. on page 361) now report the first structures of the viral polymerases of influenza A and B, respectively.
机译:甲型和乙型流感病毒在人类中引起高度传染性的疾病,每年导致全世界约25万至500,000例死亡。此外,甲型流感病毒是造成人类定期流行病的原因,这种流行病的死亡率可能高得多。最严重的大流行发生于1918年,造成约4000万人死亡。预防流感感染的主要防御方法是接种疫苗,但是抗病毒药物也起着关键作用,例如在老年人中,他们没有受到很好的疫苗保护。循环中的流感病毒已发展出对几种可用抗病毒药的抗药性,突出了开发新药的需求。病毒RNA聚合酶(一种在感染细胞中催化病毒特异性RNA合成的酶)是抗病毒药物开发的诱人靶标,但由于缺乏这种酶的三维结构,阻碍了其进展。现在,Cusack研究小组的两篇论文(Pflug等人在第355页和Reich等人在第361页)现在分别报告了甲型和乙型流感病毒病毒聚合酶的第一个结构。

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  • 来源
    《Nature》 |2014年第7531期|338-339|共2页
  • 作者

    ROBERT M. KRUG;

  • 作者单位

    Department of Molecular Biosciences, Center for Infectious Disease, Institute of Cellular and Molecular Biology, University of Texas at Austin, Austin, Texas 78712, USA;

  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);美国《生物学医学文摘》(MEDLINE);美国《化学文摘》(CA);
  • 原文格式 PDF
  • 正文语种 eng
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