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Yorodumi- PDB-9npx: SARS-CoV-2 nsp1 bound to the Rhinolophus lepidus 40S ribosomal su... -
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Open data
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Basic information
| Entry | Database: PDB / ID: 9npx | |||||||||||||||||||||||||||
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| Title | SARS-CoV-2 nsp1 bound to the Rhinolophus lepidus 40S ribosomal subunit (local refinement of the 40S body) | |||||||||||||||||||||||||||
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Keywords | RIBOSOME / Complex / Structural Genomics / Seattle Structural Genomics Center for Infectious Disease / SSGCID | |||||||||||||||||||||||||||
| Function / homology | Function and homology informationmulti-eIF complex / eukaryotic 43S preinitiation complex / translation factor activity, RNA binding / eukaryotic 48S preinitiation complex / regulation of translational initiation / ribosomal small subunit binding / translation initiation factor activity / translational initiation / protein guanylyltransferase activity / RNA endonuclease activity producing 3'-phosphomonoesters, hydrolytic mechanism ...multi-eIF complex / eukaryotic 43S preinitiation complex / translation factor activity, RNA binding / eukaryotic 48S preinitiation complex / regulation of translational initiation / ribosomal small subunit binding / translation initiation factor activity / translational initiation / protein guanylyltransferase activity / RNA endonuclease activity producing 3'-phosphomonoesters, hydrolytic mechanism / mRNA guanylyltransferase activity / 5'-3' RNA helicase activity / Lyases; Phosphorus-oxygen lyases / Assembly of the SARS-CoV-2 Replication-Transcription Complex (RTC) / symbiont-mediated suppression of host cytoplasmic pattern recognition receptor signaling pathway via inhibition of TBK1 activity / Maturation of replicase proteins / TRAF3-dependent IRF activation pathway / ISG15-specific peptidase activity / Transcription of SARS-CoV-2 sgRNAs / snRNP Assembly / Translation of Replicase and Assembly of the Replication Transcription Complex / Replication of the SARS-CoV-2 genome / Hydrolases; Acting on ester bonds; Exoribonucleases producing 5'-phosphomonoesters / host cell endoplasmic reticulum-Golgi intermediate compartment / double membrane vesicle viral factory outer membrane / SARS coronavirus main proteinase / 5'-3' DNA helicase activity / 3'-5'-RNA exonuclease activity / host cell endosome / symbiont-mediated degradation of host mRNA / mRNA guanylyltransferase / symbiont-mediated suppression of host ISG15-protein conjugation / G-quadruplex RNA binding / symbiont-mediated suppression of host toll-like receptor signaling pathway / symbiont-mediated suppression of host cytoplasmic pattern recognition receptor signaling pathway via inhibition of IRF3 activity / omega peptidase activity / SARS-CoV-2 modulates host translation machinery / mRNA (guanine-N7)-methyltransferase / methyltransferase cap1 / host cell Golgi apparatus / symbiont-mediated suppression of host NF-kappaB cascade / symbiont-mediated perturbation of host ubiquitin-like protein modification / DNA helicase / methyltransferase cap1 activity / ubiquitinyl hydrolase 1 / cysteine-type deubiquitinase activity / mRNA 5'-cap (guanine-N7-)-methyltransferase activity / Hydrolases; Acting on peptide bonds (peptidases); Cysteine endopeptidases / single-stranded RNA binding / regulation of autophagy / host cell perinuclear region of cytoplasm / viral protein processing / lyase activity / host cell endoplasmic reticulum membrane / RNA helicase / symbiont-mediated suppression of host type I interferon-mediated signaling pathway / symbiont-mediated suppression of host gene expression / copper ion binding / viral translational frameshifting / symbiont-mediated activation of host autophagy / RNA-directed RNA polymerase / cysteine-type endopeptidase activity / viral RNA genome replication / RNA-directed RNA polymerase activity / DNA-templated transcription / lipid binding / host cell nucleus / SARS-CoV-2 activates/modulates innate and adaptive immune responses / ATP hydrolysis activity / proteolysis / RNA binding / zinc ion binding / ATP binding / nucleus / membrane / cytoplasm Similarity search - Function | |||||||||||||||||||||||||||
| Biological species | ![]() Homo sapiens (human) Rhinolophus lepidus (bat) | |||||||||||||||||||||||||||
| Method | ELECTRON MICROSCOPY / single particle reconstruction / cryo EM / Resolution: 2.1 Å | |||||||||||||||||||||||||||
Authors | Gen, R. / Seattle Structural Genomics Center for Infectious Disease (SSGCID) / Veesler, D. | |||||||||||||||||||||||||||
| Funding support | United States, 1items
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Citation | Journal: Cell Rep / Year: 2025Title: SARS-CoV-2 nsp1 mediates broad inhibition of translation in mammals. Authors: Risako Gen / Amin Addetia / Daniel Asarnow / Young-Jun Park / Joel Quispe / Matthew C Chan / Jack T Brown / Jimin Lee / Melody G Campbell / Christopher P Lapointe / David Veesler / ![]() Abstract: Severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) non-structural protein 1 (nsp1) promotes innate immune evasion by inhibiting host translation in human cells. However, the role of nsp1 in ...Severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) non-structural protein 1 (nsp1) promotes innate immune evasion by inhibiting host translation in human cells. However, the role of nsp1 in other host species remains elusive, especially in bats-natural reservoirs of sarbecoviruses with a markedly different innate immune system than humans. We reveal that nsp1 potently inhibits translation in Rhinolophus lepidus bat cells, which belong to the same genus as known sarbecovirus reservoir hosts. We determined a cryoelectron microscopy structure of nsp1 bound to the R. lepidus 40S ribosomal subunit, showing that it blocks the mRNA entry channel by targeting a highly conserved site among mammals. Accordingly, we found that nsp1 blocked protein translation in mammalian cells from several species, underscoring its broadly inhibitory activity and conserved role in numerous SARS-CoV-2 hosts. Our findings illuminate the arms race between coronaviruses and mammalian host immunity, providing a foundation for understanding the determinants of viral maintenance in bat hosts and spillover. | |||||||||||||||||||||||||||
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Structure visualization
| Structure viewer | Molecule: Molmil Jmol/JSmol |
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Downloads & links
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Download
| PDBx/mmCIF format | 9npx.cif.gz | 1.3 MB | Display | PDBx/mmCIF format |
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| PDB format | pdb9npx.ent.gz | 984.8 KB | Display | PDB format |
| PDBx/mmJSON format | 9npx.json.gz | Tree view | PDBx/mmJSON format | |
| Others | Other downloads |
-Validation report
| Summary document | 9npx_validation.pdf.gz | 1.4 MB | Display | wwPDB validaton report |
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| Full document | 9npx_full_validation.pdf.gz | 1.5 MB | Display | |
| Data in XML | 9npx_validation.xml.gz | 114.3 KB | Display | |
| Data in CIF | 9npx_validation.cif.gz | 197.3 KB | Display | |
| Arichive directory | https://data.pdbj.org/pub/pdb/validation_reports/np/9npx ftp://data.pdbj.org/pub/pdb/validation_reports/np/9npx | HTTPS FTP |
-Related structure data
| Related structure data | ![]() 49635MC ![]() 9npyC M: map data used to model this data C: citing same article ( |
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| Similar structure data | Similarity search - Function & homology F&H Search |
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Links
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Assembly
| Deposited unit | ![]()
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Components
-40S ribosomal protein ... , 20 types, 20 molecules ADFHIMNPRVWXZahGKeCB
| #1: Protein | Mass: 31257.352 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Rhinolophus lepidus (bat) |
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| #2: Protein | Mass: 29640.846 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Rhinolophus lepidus (bat) |
| #3: Protein | Mass: 28751.906 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Rhinolophus lepidus (bat) |
| #4: Protein | Mass: 24249.359 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Rhinolophus lepidus (bat) |
| #5: Protein | Mass: 22641.564 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Rhinolophus lepidus (bat) |
| #6: Protein | Mass: 17259.389 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Rhinolophus lepidus (bat) |
| #7: Protein | Mass: 16302.772 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Rhinolophus lepidus (bat) |
| #8: Protein | Mass: 14865.555 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Rhinolophus lepidus (bat) |
| #9: Protein | Mass: 15552.119 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Rhinolophus lepidus (bat) |
| #10: Protein | Mass: 9150.427 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Rhinolophus lepidus (bat) |
| #11: Protein | Mass: 15844.666 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Rhinolophus lepidus (bat) |
| #12: Protein | Mass: 15094.926 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Rhinolophus lepidus (bat) |
| #13: Protein | Mass: 13047.532 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Rhinolophus lepidus (bat) |
| #14: Protein | Mass: 9480.186 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Rhinolophus lepidus (bat) |
| #16: Protein | Mass: 32750.770 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Rhinolophus lepidus (bat) |
| #19: Protein | Mass: 22168.914 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Rhinolophus lepidus (bat) |
| #20: Protein | Mass: 18468.826 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Rhinolophus lepidus (bat) |
| #21: Protein | Mass: 6857.185 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Rhinolophus lepidus (bat) |
| #22: Protein | Mass: 30002.061 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Rhinolophus lepidus (bat) |
| #24: Protein | Mass: 26715.344 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Rhinolophus lepidus (bat) |
-Protein , 2 types, 2 molecules jk
| #17: Protein | Mass: 19801.287 Da / Num. of mol.: 1 Source method: isolated from a genetically manipulated source Source: (gene. exp.) ![]() Gene: rep, 1a-1b / Production host: ![]() |
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| #18: Protein | Mass: 12752.498 Da / Num. of mol.: 1 Source method: isolated from a genetically manipulated source Source: (gene. exp.) Homo sapiens (human) / Gene: EIF1, SUI1 / Production host: ![]() |
-Protein/peptide / RNA chain , 2 types, 2 molecules fi
| #15: Protein/peptide | Mass: 3473.451 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Rhinolophus lepidus (bat) |
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| #23: RNA chain | Mass: 603611.188 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Rhinolophus lepidus (bat) |
-Non-polymers , 4 types, 1711 molecules 






| #25: Chemical | ChemComp-MG / #26: Chemical | ChemComp-K / #27: Chemical | ChemComp-ZN / | #28: Water | ChemComp-HOH / | |
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-Details
| Has ligand of interest | N |
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| Has protein modification | Y |
-Experimental details
-Experiment
| Experiment | Method: ELECTRON MICROSCOPY |
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| EM experiment | Aggregation state: PARTICLE / 3D reconstruction method: single particle reconstruction |
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Sample preparation
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| Molecular weight | Experimental value: NO | ||||||||||||||||||||||||||||||
| Source (natural) |
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| Source (recombinant) |
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| Buffer solution | pH: 7.4 | ||||||||||||||||||||||||||||||
| Specimen | Embedding applied: NO / Shadowing applied: NO / Staining applied: NO / Vitrification applied: YES | ||||||||||||||||||||||||||||||
| 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: TFS KRIOS |
| Electron gun | Electron source: FIELD EMISSION GUN / Accelerating voltage: 300 kV / Illumination mode: FLOOD BEAM |
| Electron lens | Mode: BRIGHT FIELD / Nominal defocus max: 1600 nm / Nominal defocus min: 600 nm |
| Image recording | Electron dose: 30.7 e/Å2 / Film or detector model: GATAN K3 (6k x 4k) |
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Processing
| CTF correction | Type: NONE |
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| 3D reconstruction | Resolution: 2.1 Å / Resolution method: FSC 0.143 CUT-OFF / Num. of particles: 120566 / Symmetry type: POINT |
| Refinement | Highest resolution: 2.1 Å |
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About Yorodumi




Homo sapiens (human)
Rhinolophus lepidus (bat)
United States, 1items
Citation



PDBj







































FIELD EMISSION GUN