Molecular architecture of the 40S⋅eIF1⋅eIF3 translation initiation complex.
Molecular architecture of the 40S⋅eIF1⋅eIF3 translation initiation complex.
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DOI:
10.1016/j.cell.2014.07.044
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发表时间:
2014-08-28
期刊:
影响因子:
64.5
通讯作者:
Ban N
中科院分区:
文献类型:
--
作者:
Erzberger JP;Stengel F;Pellarin R;Zhang S;Schaefer T;Aylett CHS;Cimermančič P;Boehringer D;Sali A;Aebersold R;Ban N
Eukaryotic translation initiation requires the recruitment of the large, multiprotein eIF3 complex to the 40S ribosomal subunit. We present X-ray structures of all major components of the minimal, six-subunit Saccharomyces cerevisiae eIF3 core. These structures, together with electron microscopy reconstructions, cross-linking coupled to mass spectrometry, and integrative structure modeling, allowed us to position and orient all eIF3 components on the 40S⋅eIF1 complex, revealing an extended, modular arrangement of eIF3 subunits. Yeast eIF3 engages 40S in a clamp-like manner, fully encircling 40S to position key initiation factors on opposite ends of the mRNA channel, providing a platform for the recruitment, assembly, and regulation of the translation initiation machinery. The structures of eIF3 components reported here also have implications for understanding the architecture of the mammalian 43S preinitiation complex and the complex of eIF3, 40S, and the hepatitis C internal ribosomal entry site RNA. X-ray structures of major yeast eIF3 components and subcomplexes Crosslinking coupled to mass-spectrometry analysis of 40S⋅eIF1⋅eIF3 complex Integrative modeling reveals architecture of 40S⋅eIF1⋅eIF3 complex A hybrid approach drawing on X-ray structures, crosslinking coupled to mass spectrometry, electron microscopy, and integrative modeling yields mechanistic insights into how eIF3 coordinates translation initiation.
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影响因子:
5.3
作者:
Chiu, Wen-Ling;Wagner, Susan;Hinnebusch, Alan G.
通讯作者:
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影响因子:
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DOI:
10.1107/s0907444909052925
发表时间:
2010-02
期刊:
Acta crystallographica. Section D, Biological crystallography
影响因子:
--
作者:
Adams PD;Afonine PV;Bunkóczi G;Chen VB;Davis IW;Echols N;Headd JJ;Hung LW;Kapral GJ;Grosse-Kunstleve RW;McCoy AJ;Moriarty NW;Oeffner R;Read RJ;Richardson DC;Richardson JS;Terwilliger TC;Zwart PH
通讯作者:
Zwart PH
影响因子:
8.8
作者:
Enchev RI;Scott DC;da Fonseca PC;Schreiber A;Monda JK;Schulman BA;Peter M;Morris EP
通讯作者:
Morris EP
DOI:
10.1074/jbc.m112.386656
发表时间:
2012-08-17
期刊:
The Journal of biological chemistry
影响因子:
--
作者:
Karásková M;Gunišová S;Herrmannová A;Wagner S;Munzarová V;Valášek L
通讯作者:
Valášek L