Symportin 1 chaperones 5S RNP assembly during ribosome biogenesis by occupying an essential rRNA-binding site.
Symportin 1 chaperones 5S RNP assembly during ribosome biogenesis by occupying an essential rRNA-binding site.
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在核糖体生物发生过程中,通过占据必需的rRNA结合位点,在核糖体生物发生过程中进行了1伴侣。
DOI:
10.1038/ncomms7510
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发表时间:
2015-04-07
影响因子:
16.6
通讯作者:
Sinning, Irmgard
中科院分区:
文献类型:
--
作者:
Calvino, Fabiola R.;Kharde, Satyavati;Ori, Alessandro;Hendricks, Astrid;Wild, Klemens;Kressler, Dieter;Bange, Gert;Hurt, Ed;Beck, Martin;Sinning, Irmgard
During 60S biogenesis, mature 5S RNP consisting of 5S RNA, RpL5 and RpL11, assembles into a pre-60S particle, where docking relies on RpL11 interacting with helix 84 (H84) of the 25S RNA. How 5S RNP is assembled for recruitment into the pre-60S is not known. Here we report the crystal structure of a ternary symportin Syo1–RpL5-N–RpL11 complex and provide biochemical and structural insights into 5S RNP assembly. Syo1 guards the 25S RNA-binding surface on RpL11 and competes with H84 for binding. Pull-down experiments show that H84 releases RpL11 from the ternary complex, but not in the presence of 5S RNA. Crosslinking mass spectrometry visualizes structural rearrangements on incorporation of 5S RNA into the Syo1–RpL5–RpL11 complex supporting the formation of a pre-5S RNP. Our data underline the dual role of Syo1 in ribosomal protein transport and as an assembly platform for 5S RNP. Biogenesis of the 80S ribosome involves more than 200 pre-ribosomal factors, which ensure the sequential assembly of ribosomal proteins and RNAs. Here the authors show that the nuclear transport adaptor Syo1 shields the 5S RNP-docking site on RpL11 before incorporation into the pre-60S through molecular mimicry.
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DOI:
10.1107/s0907444910045749
发表时间:
2011-04
期刊:
Acta crystallographica. Section D, Biological crystallography
影响因子:
--
作者:
Winn MD;Ballard CC;Cowtan KD;Dodson EJ;Emsley P;Evans PR;Keegan RM;Krissinel EB;Leslie AG;McCoy A;McNicholas SJ;Murshudov GN;Pannu NS;Potterton EA;Powell HR;Read RJ;Vagin A;Wilson KS
通讯作者:
Wilson KS
DOI:
10.1074/mcp.m111.014126
发表时间:
2012-03
期刊:
Molecular & cellular proteomics : MCP
影响因子:
--
作者:
Leitner A;Reischl R;Walzthoeni T;Herzog F;Bohn S;Förster F;Aebersold R
通讯作者:
Aebersold R
影响因子:
10.5
作者:
Gamalinda M;Ohmayer U;Jakovljevic J;Kumcuoglu B;Woolford J;Mbom B;Lin L;Woolford JL Jr
通讯作者:
Woolford JL Jr
影响因子:
5.6
作者:
Menichelli, Elena;Isel, Catherine;Nagai, Kiyoshi
通讯作者:
Nagai, Kiyoshi
影响因子:
48
作者:
Rinner, Oliver;Seebacher, Jan;Aebersold, Ruedi
通讯作者:
Aebersold, Ruedi