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Structure of the human 80S ribosome

机译:人类80S核糖体的结构

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摘要

Ribosomes are translational machineries that catalyse protein synthesis. Ribosome structures from various species are known at the atomic level, but obtaining the structure of the human ribosome has remained a challenge; efforts to address this would be highly relevant with regard to human diseases. Here we report the near-atomic structure of the human ribosome derived from high-resolution single-particle cryo-eiecfron microscopy and atomic model, building. The structure has an average resolution of 3.6 angstrom, reaching 2.9 angstrom resolution in the most stable regions. It provides unprecedented insights into ribosomal RNA entities and amino acid side chains, notably of the transfer RNA binding sites and specific molecular interactions with the exit site tRINA. It reveals atomic details of the subunit interface, which is seen to remodel strongly upon rotational movements of the ribosomal submits. Furthermore, the structure paves the way for analysing antibiotic side effects and diseases associated with deregulated protein synthesis.
机译:核糖体是催化蛋白质合成的翻译机制。在原子水平上已知各种物种的核糖体结构,但是获得人核糖体的结构仍然是一个挑战。解决这一问题的努力与人类疾病高度相关。在这里,我们报道了人类核糖体的近原子结构,该结构来源于高分辨率的单粒子冷冻电子显微镜和原子模型,建筑。该结构的平均分辨率为3.6埃,在最稳定的区域中达到2.9埃。它为核糖体RNA实体和氨基酸侧链提供了前所未有的见解,尤其是转移RNA结合位点以及与出口位点tRINA的特定分子相互作用的见解。它揭示了亚基界面的原子细节,可以看到它在核糖体顺从分子的旋转运动中发生了强烈的重塑。此外,该结构为分析抗生素副作用和与蛋白质合成失控相关的疾病铺平了道路。

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  • 来源
    《Nature》 |2015年第7549期|640-645|共6页
  • 作者单位

    IGBMC Inst Genet & Mol & Cellular Biol, Dept Integrated Struct Biol, Ctr Integrat Biol CBI, F-67404 Illkirch Graffenstaden, France|CNRS, UMR 7104, F-67404 Illkirch Graffenstaden, France|INSERM, U964, F-67404 Illkirch Graffenstaden, France|Univ Strasbourg, F-67081 Strasbourg, France;

    IGBMC Inst Genet & Mol & Cellular Biol, Dept Integrated Struct Biol, Ctr Integrat Biol CBI, F-67404 Illkirch Graffenstaden, France|CNRS, UMR 7104, F-67404 Illkirch Graffenstaden, France|INSERM, U964, F-67404 Illkirch Graffenstaden, France|Univ Strasbourg, F-67081 Strasbourg, France;

    IGBMC Inst Genet & Mol & Cellular Biol, Dept Integrated Struct Biol, Ctr Integrat Biol CBI, F-67404 Illkirch Graffenstaden, France|CNRS, UMR 7104, F-67404 Illkirch Graffenstaden, France|INSERM, U964, F-67404 Illkirch Graffenstaden, France|Univ Strasbourg, F-67081 Strasbourg, France;

    IGBMC Inst Genet & Mol & Cellular Biol, Dept Integrated Struct Biol, Ctr Integrat Biol CBI, F-67404 Illkirch Graffenstaden, France|CNRS, UMR 7104, F-67404 Illkirch Graffenstaden, France|INSERM, U964, F-67404 Illkirch Graffenstaden, France|Univ Strasbourg, F-67081 Strasbourg, France;

  • 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);
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