+Open data
-Basic information
Entry | Database: EMDB / ID: EMD-14003 | |||||||||||||||
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Title | Specific features and methylation sites of a plant ribosome | |||||||||||||||
Map data | ||||||||||||||||
Sample |
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Keywords | Solanum lycopersicum / cytosolic ribosome / 80S / plant / rRNA / RIBOSOME | |||||||||||||||
Function / homology | Function and homology information MAP kinase activity / translation regulator activity / maturation of SSU-rRNA from tricistronic rRNA transcript (SSU-rRNA, 5.8S rRNA, LSU-rRNA) / maturation of SSU-rRNA / ribosome binding / ribosomal small subunit assembly / small ribosomal subunit / cytosolic small ribosomal subunit / rRNA binding / intracellular signal transduction ...MAP kinase activity / translation regulator activity / maturation of SSU-rRNA from tricistronic rRNA transcript (SSU-rRNA, 5.8S rRNA, LSU-rRNA) / maturation of SSU-rRNA / ribosome binding / ribosomal small subunit assembly / small ribosomal subunit / cytosolic small ribosomal subunit / rRNA binding / intracellular signal transduction / ribosome / structural constituent of ribosome / ribonucleoprotein complex / translation / mRNA binding / RNA binding / zinc ion binding / ATP binding / nucleus / cytosol / cytoplasm Similarity search - Function | |||||||||||||||
Biological species | Solanum lycopersicum (tomato) | |||||||||||||||
Method | single particle reconstruction / cryo EM / Resolution: 2.58 Å | |||||||||||||||
Authors | Amunts A / Cottilli P | |||||||||||||||
Funding support | European Union, 4 items
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Citation | Journal: Plant Commun / Year: 2022 Title: Cryo-EM structure and rRNA modification sites of a plant ribosome. Authors: Patrick Cottilli / Yuzuru Itoh / Yuko Nobe / Anton S Petrov / Purificación Lisón / Masato Taoka / Alexey Amunts / Abstract: Protein synthesis in crop plants contributes to the balance of food and fuel on our planet, which influences human metabolic activity and lifespan. Protein synthesis can be regulated with respect to ...Protein synthesis in crop plants contributes to the balance of food and fuel on our planet, which influences human metabolic activity and lifespan. Protein synthesis can be regulated with respect to changing environmental cues via the deposition of chemical modifications into rRNA. Here, we present the structure of a plant ribosome from tomato and a quantitative mass spectrometry analysis of its rRNAs. The study reveals fine features of the ribosomal proteins and 71 plant-specific rRNA modifications, and it re-annotates 30 rRNA residues in the available sequence. At the protein level, isoAsp is found in position 137 of uS11, and a zinc finger previously believed to be universal is missing from eL34, suggesting a lower effect of zinc deficiency on protein synthesis in plants. At the rRNA level, the plant ribosome differs markedly from its human counterpart with respect to the spatial distribution of modifications. Thus, it represents an additional layer of gene expression regulation, highlighting the molecular signature of a plant ribosome. The results provide a reference model of a plant ribosome for structural studies and an accurate marker for molecular ecology. | |||||||||||||||
History |
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-Structure visualization
Supplemental images |
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-Downloads & links
-EMDB archive
Map data | emd_14003.map.gz | 329.6 MB | EMDB map data format | |
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Header (meta data) | emd-14003-v30.xml emd-14003.xml | 33.1 KB 33.1 KB | Display Display | EMDB header |
FSC (resolution estimation) | emd_14003_fsc.xml | 19 KB | Display | FSC data file |
Images | emd_14003.png | 74.5 KB | ||
Masks | emd_14003_msk_1.map | 600.7 MB | Mask map | |
Filedesc metadata | emd-14003.cif.gz | 8.8 KB | ||
Others | emd_14003_half_map_1.map.gz emd_14003_half_map_2.map.gz | 481.3 MB 481.3 MB | ||
Archive directory | http://ftp.pdbj.org/pub/emdb/structures/EMD-14003 ftp://ftp.pdbj.org/pub/emdb/structures/EMD-14003 | HTTPS FTP |
-Validation report
Summary document | emd_14003_validation.pdf.gz | 793.9 KB | Display | EMDB validaton report |
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Full document | emd_14003_full_validation.pdf.gz | 793.5 KB | Display | |
Data in XML | emd_14003_validation.xml.gz | 26.9 KB | Display | |
Data in CIF | emd_14003_validation.cif.gz | 36 KB | Display | |
Arichive directory | https://ftp.pdbj.org/pub/emdb/validation_reports/EMD-14003 ftp://ftp.pdbj.org/pub/emdb/validation_reports/EMD-14003 | HTTPS FTP |
-Related structure data
Related structure data | 7qiyMC 7qiwC 7qixC 7qizC C: citing same article (ref.) M: atomic model generated by this map |
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Similar structure data | Similarity search - Function & homologyF&H Search |
-Links
EMDB pages | EMDB (EBI/PDBe) / EMDataResource |
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Related items in Molecule of the Month |
-Map
File | Download / File: emd_14003.map.gz / Format: CCP4 / Size: 600.7 MB / Type: IMAGE STORED AS FLOATING POINT NUMBER (4 BYTES) | ||||||||||||||||||||||||||||||||||||
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Projections & slices | Image control
Images are generated by Spider. | ||||||||||||||||||||||||||||||||||||
Voxel size | X=Y=Z: 0.83 Å | ||||||||||||||||||||||||||||||||||||
Density |
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Symmetry | Space group: 1 | ||||||||||||||||||||||||||||||||||||
Details | EMDB XML:
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-Supplemental data
-Mask #1
File | emd_14003_msk_1.map | ||||||||||||
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Projections & Slices |
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Density Histograms |
-Half map: #1
File | emd_14003_half_map_1.map | ||||||||||||
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Projections & Slices |
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Density Histograms |
-Half map: #2
File | emd_14003_half_map_2.map | ||||||||||||
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Projections & Slices |
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Density Histograms |
-Sample components
+Entire : 40S head ribosomal subunit
+Supramolecule #1: 40S head ribosomal subunit
+Macromolecule #1: 18S rRNA head
+Macromolecule #15: tRNA
+Macromolecule #16: mRNA
+Macromolecule #2: KH type-2 domain-containing protein
+Macromolecule #3: Ribosomal_S7 domain-containing protein
+Macromolecule #4: S10_plectin domain-containing protein
+Macromolecule #5: 40S head ribosomal protein uS19
+Macromolecule #6: 40S head ribosomal protein uS9
+Macromolecule #7: 40S ribosomal protein S17
+Macromolecule #8: 40S head ribosomal protein uS13
+Macromolecule #9: 40S head ribosomal protein eS19
+Macromolecule #10: Ribosomal_S10 domain-containing protein
+Macromolecule #11: 40S head ribosomal protein eS28
+Macromolecule #12: 40S ribosomal protein S29
+Macromolecule #13: Mitogen-activated protein kinase
+Macromolecule #14: 40S ribosomal protein S25
+Macromolecule #17: POTASSIUM ION
+Macromolecule #18: 1,4-DIAMINOBUTANE
+Macromolecule #19: MAGNESIUM ION
+Macromolecule #20: beta-D-glucopyranose
+Macromolecule #21: ZINC ION
+Macromolecule #22: water
-Experimental details
-Structure determination
Method | cryo EM |
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Processing | single particle reconstruction |
Aggregation state | particle |
-Sample preparation
Buffer | pH: 7.5 |
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Vitrification | Cryogen name: ETHANE |
-Electron microscopy
Microscope | FEI TITAN KRIOS |
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Image recording | Film or detector model: GATAN K2 SUMMIT (4k x 4k) / Average electron dose: 30.2 e/Å2 |
Electron beam | Acceleration voltage: 300 kV / Electron source: FIELD EMISSION GUN |
Electron optics | Illumination mode: FLOOD BEAM / Imaging mode: BRIGHT FIELD / Nominal defocus max: 2.8000000000000003 µm / Nominal defocus min: 1.0 µm |
Experimental equipment | Model: Titan Krios / Image courtesy: FEI Company |