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- PDB-6zn5: SARS-CoV-2 Nsp1 bound to a pre-40S-like ribosome complex - state 2 -
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Open data
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Basic information
Entry | Database: PDB / ID: 6zn5 | ||||||||||||
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Title | SARS-CoV-2 Nsp1 bound to a pre-40S-like ribosome complex - state 2 | ||||||||||||
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Function / homology | ![]() endonucleolytic cleavage of tricistronic rRNA transcript (SSU-rRNA, 5.8S rRNA, LSU-rRNA) / positive regulation of respiratory burst involved in inflammatory response / nucleolus organization / protein tyrosine kinase inhibitor activity / positive regulation of gastrulation / positive regulation of Golgi to plasma membrane protein transport / negative regulation of RNA splicing / IRE1-RACK1-PP2A complex / response to extracellular stimulus / ubiquitin ligase inhibitor activity ...endonucleolytic cleavage of tricistronic rRNA transcript (SSU-rRNA, 5.8S rRNA, LSU-rRNA) / positive regulation of respiratory burst involved in inflammatory response / nucleolus organization / protein tyrosine kinase inhibitor activity / positive regulation of gastrulation / positive regulation of Golgi to plasma membrane protein transport / negative regulation of RNA splicing / IRE1-RACK1-PP2A complex / response to extracellular stimulus / ubiquitin ligase inhibitor activity / laminin receptor activity / cytoplasmic side of rough endoplasmic reticulum membrane / ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() | ||||||||||||
Biological species | ![]() ![]() ![]() ![]() ![]() | ||||||||||||
Method | ![]() ![]() ![]() | ||||||||||||
![]() | Thoms, M. / Buschauer, R. / Ameismeier, M. / Denk, T. / Kratzat, H. / Mackens-Kiani, T. / Cheng, J. / Berninghausen, O. / Becker, T. / Beckmann, R. | ||||||||||||
Funding support | ![]()
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![]() | ![]() Title: Structural basis for translational shutdown and immune evasion by the Nsp1 protein of SARS-CoV-2. Authors: Matthias Thoms / Robert Buschauer / Michael Ameismeier / Lennart Koepke / Timo Denk / Maximilian Hirschenberger / Hanna Kratzat / Manuel Hayn / Timur Mackens-Kiani / Jingdong Cheng / Jan H ...Authors: Matthias Thoms / Robert Buschauer / Michael Ameismeier / Lennart Koepke / Timo Denk / Maximilian Hirschenberger / Hanna Kratzat / Manuel Hayn / Timur Mackens-Kiani / Jingdong Cheng / Jan H Straub / Christina M Stürzel / Thomas Fröhlich / Otto Berninghausen / Thomas Becker / Frank Kirchhoff / Konstantin M J Sparrer / Roland Beckmann / ![]() Abstract: Severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) is the causative agent of the current coronavirus disease 2019 (COVID-19) pandemic. A major virulence factor of SARS-CoVs is the ...Severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) is the causative agent of the current coronavirus disease 2019 (COVID-19) pandemic. A major virulence factor of SARS-CoVs is the nonstructural protein 1 (Nsp1), which suppresses host gene expression by ribosome association. Here, we show that Nsp1 from SARS-CoV-2 binds to the 40 ribosomal subunit, resulting in shutdown of messenger RNA (mRNA) translation both in vitro and in cells. Structural analysis by cryo-electron microscopy of in vitro-reconstituted Nsp1-40 and various native Nsp1-40 and -80 complexes revealed that the Nsp1 C terminus binds to and obstructs the mRNA entry tunnel. Thereby, Nsp1 effectively blocks retinoic acid-inducible gene I-dependent innate immune responses that would otherwise facilitate clearance of the infection. Thus, the structural characterization of the inhibitory mechanism of Nsp1 may aid structure-based drug design against SARS-CoV-2. | ||||||||||||
Validation Report | ![]() ![]() ![]() | ||||||||||||
History |
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Structure visualization
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Structure viewer | Molecule: ![]() ![]() |
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PDBx/mmcif format | ![]() ![]() ![]() |
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PDB format | ![]() ![]() |
PDBML Plus | ![]() |
Others | ![]() |
-Related structure data
Related structure data | ![]() 11310CM ![]() 6zlwC ![]() 6zm7C ![]() 6zmeC ![]() 6zmiC ![]() 6zmoC ![]() 6zmtC ![]() 6zonC ![]() 6zp4C C: citing same article ( M: map data used to model this data |
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Similar-shape strucutres |
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Links
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Assembly
Deposited unit | ![]()
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Components
+40S ribosomal protein ... , 31 types, 31 molecules BCDEFGHIJKLMNOPQRSTUVWXYZabcdef
-Protein , 4 types, 4 molecules gjiu
#32: Protein | ![]() Mass: 8453.150 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) ![]() ![]() |
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#33: Protein | Mass: 34726.164 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) ![]() ![]() |
#35: Protein | Mass: 19801.287 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Details: Non-structural protein 1 Source: (natural) ![]() ![]() ![]() References: UniProt: P0DTD1, ubiquitinyl hydrolase 1, Hydrolases; Acting on peptide bonds (peptidases); Cysteine endopeptidases, SARS coronavirus main proteinase, RNA-directed RNA polymerase, DNA ...References: UniProt: P0DTD1, ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() |
#36: Protein | Mass: 91951.188 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) ![]() ![]() |
-RNA chain / Non-polymers , 2 types, 4 molecules 2

#34: RNA chain | ![]() Mass: 602432.625 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) ![]() ![]() ![]() |
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#37: Chemical | ![]() |
-Details
Has ligand of interest | N |
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-Experimental details
-Experiment
Experiment | Method: ![]() |
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EM experiment | Aggregation state: PARTICLE / 3D reconstruction method: ![]() |
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Sample preparation
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Source (natural) |
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Buffer solution | pH: 7.5 | ||||||||||||||||||||||||
Specimen | Embedding applied: NO / Shadowing applied: NO / Staining applied![]() ![]() | ||||||||||||||||||||||||
Vitrification![]() | Cryogen name: ETHANE |
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Electron microscopy imaging
Experimental equipment | ![]() Model: Titan Krios / Image courtesy: FEI Company |
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Microscopy | Model: FEI TITAN KRIOS |
Electron gun | Electron source![]() ![]() |
Electron lens | Mode: BRIGHT FIELD![]() |
Image recording | Electron dose: 44.8 e/Å2 / Film or detector model: GATAN K2 SUMMIT (4k x 4k) |
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Processing
CTF correction![]() | Type: PHASE FLIPPING AND AMPLITUDE CORRECTION |
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3D reconstruction![]() | Resolution: 3.2 Å / Resolution method: FSC 0.143 CUT-OFF / Num. of particles: 20087 / Symmetry type: POINT |