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Open data
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Basic information
| Entry | Database: PDB / ID: 8azw | ||||||
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| Title | Cryo-EM structure of the plant 60S subunit | ||||||
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Keywords | RIBOSOME / Plant / 80S / rRNA Modifications | ||||||
| Function / homology | Function and homology informationprotein-RNA complex assembly / maturation of LSU-rRNA / cytosolic ribosome / maturation of LSU-rRNA from tricistronic rRNA transcript (SSU-rRNA, 5.8S rRNA, LSU-rRNA) / ribosomal large subunit biogenesis / ribosome biogenesis / 5S rRNA binding / ribosomal large subunit assembly / large ribosomal subunit rRNA binding / cytosolic large ribosomal subunit ...protein-RNA complex assembly / maturation of LSU-rRNA / cytosolic ribosome / maturation of LSU-rRNA from tricistronic rRNA transcript (SSU-rRNA, 5.8S rRNA, LSU-rRNA) / ribosomal large subunit biogenesis / ribosome biogenesis / 5S rRNA binding / ribosomal large subunit assembly / large ribosomal subunit rRNA binding / cytosolic large ribosomal subunit / cytoplasmic translation / negative regulation of translation / rRNA binding / structural constituent of ribosome / ribosome / translation / ribonucleoprotein complex / mRNA binding / RNA binding / zinc ion binding Similarity search - Function | ||||||
| Biological species | ![]() | ||||||
| Method | ELECTRON MICROSCOPY / single particle reconstruction / cryo EM / Resolution: 2.14 Å | ||||||
Authors | Smirnova, J. / Loerke, J. / Kleinau, G. / Schmidt, A. / Buerger, J. / Meyer, E.H. / Mielke, T. / Scheerer, P. / Bock, R. / Spahn, C.M.T. / Zoschke, R. | ||||||
| Funding support | Germany, 1items
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Citation | Journal: Nat Plants / Year: 2023Title: Structure of the actively translating plant 80S ribosome at 2.2 Å resolution. Authors: Julia Smirnova / Justus Loerke / Gunnar Kleinau / Andrea Schmidt / Jörg Bürger / Etienne H Meyer / Thorsten Mielke / Patrick Scheerer / Ralph Bock / Christian M T Spahn / Reimo Zoschke / ![]() Abstract: In plant cells, translation occurs in three compartments: the cytosol, the plastids and the mitochondria. While the structures of the (prokaryotic-type) ribosomes in plastids and mitochondria are ...In plant cells, translation occurs in three compartments: the cytosol, the plastids and the mitochondria. While the structures of the (prokaryotic-type) ribosomes in plastids and mitochondria are well characterized, high-resolution structures of the eukaryotic 80S ribosomes in the cytosol have been lacking. Here the structure of translating tobacco (Nicotiana tabacum) 80S ribosomes was solved by cryo-electron microscopy with a global resolution of 2.2 Å. The ribosome structure includes two tRNAs, decoded mRNA and the nascent peptide chain, thus providing insights into the molecular underpinnings of the cytosolic translation process in plants. The map displays conserved and plant-specific rRNA modifications and the positions of numerous ionic cofactors, and it uncovers the role of monovalent ions in the decoding centre. The model of the plant 80S ribosome enables broad phylogenetic comparisons that reveal commonalities and differences in the ribosomes of plants and those of other eukaryotes, thus putting our knowledge about eukaryotic translation on a firmer footing. | ||||||
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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 | 8azw.cif.gz | 5 MB | Display | PDBx/mmCIF format |
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| PDB format | pdb8azw.ent.gz | Display | PDB format | |
| PDBx/mmJSON format | 8azw.json.gz | Tree view | PDBx/mmJSON format | |
| Others | Other downloads |
-Validation report
| Summary document | 8azw_validation.pdf.gz | 1.7 MB | Display | wwPDB validaton report |
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| Full document | 8azw_full_validation.pdf.gz | 1.8 MB | Display | |
| Data in XML | 8azw_validation.xml.gz | 222.6 KB | Display | |
| Data in CIF | 8azw_validation.cif.gz | 394.6 KB | Display | |
| Arichive directory | https://data.pdbj.org/pub/pdb/validation_reports/az/8azw ftp://data.pdbj.org/pub/pdb/validation_reports/az/8azw | HTTPS FTP |
-Related structure data
| Related structure data | ![]() 15773MC ![]() 8auvC ![]() 8b2lC 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
-RNA chain , 3 types, 3 molecules CAB
| #1: RNA chain | Mass: 38328.777 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) ![]() |
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| #45: RNA chain | Mass: 1098268.000 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) ![]() |
| #46: RNA chain | Mass: 52563.258 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) ![]() |
+Protein , 41 types, 41 molecules DEFGHIJKLMNOPQRSTUVWXYZabcdefg...
-Protein/peptide , 2 types, 2 molecules pl
| #24: Protein/peptide | Mass: 3445.437 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) ![]() |
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| #44: Protein/peptide | Mass: 2060.531 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) ![]() |
-Non-polymers , 6 types, 4567 molecules 










| #47: Chemical | ChemComp-MG / #48: Chemical | ChemComp-K / #49: Chemical | ChemComp-ZN / #50: Chemical | ChemComp-SPD / | #51: Chemical | #52: Water | ChemComp-HOH / | |
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-Details
| Has ligand of interest | Y |
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-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
| Component | Name: 40S subunit of the cytosolic 80S ribosome from tobacco Type: RIBOSOME / Entity ID: #1-#35 / Source: NATURAL |
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| Source (natural) | Organism: ![]() |
| Buffer solution | pH: 8 |
| 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: FEI TITAN KRIOS |
| Electron gun | Electron source: FIELD EMISSION GUN / Accelerating voltage: 300 kV / Illumination mode: OTHER |
| Electron lens | Mode: OTHER / Nominal defocus max: 2500 nm / Nominal defocus min: 1000 nm |
| Image recording | Electron dose: 27 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: 2.14 Å / Resolution method: FSC 0.143 CUT-OFF / Num. of particles: 335291 / Symmetry type: POINT |
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About Yorodumi






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FIELD EMISSION GUN