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Yorodumi- EMDB-14317: Cryo-EM reconstruction of the human 40S ribosomal subunit - Full map -
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Open data
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Basic information
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| Title | Cryo-EM reconstruction of the human 40S ribosomal subunit - Full map | |||||||||||||||
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Keywords | Ribosome / rRNA modifications / post-translational modifications / cryo-EM | |||||||||||||||
| Function / homology | Function and homology informationnegative regulation of endoplasmic reticulum unfolded protein response / oxidized pyrimidine DNA binding / response to TNF agonist / positive regulation of base-excision repair / positive regulation of ubiquitin-protein transferase activity / positive regulation of respiratory burst involved in inflammatory response / positive regulation of gastrulation / protein tyrosine kinase inhibitor activity / positive regulation of DNA-templated transcription initiation / positive regulation of intrinsic apoptotic signaling pathway in response to DNA damage ...negative regulation of endoplasmic reticulum unfolded protein response / oxidized pyrimidine DNA binding / response to TNF agonist / positive regulation of base-excision repair / positive regulation of ubiquitin-protein transferase activity / positive regulation of respiratory burst involved in inflammatory response / positive regulation of gastrulation / protein tyrosine kinase inhibitor activity / positive regulation of DNA-templated transcription initiation / positive regulation of intrinsic apoptotic signaling pathway in response to DNA damage / IRE1-RACK1-PP2A complex / positive regulation of Golgi to plasma membrane protein transport / nucleolus organization / TNFR1-mediated ceramide production / negative regulation of RNA splicing / neural crest cell differentiation / supercoiled DNA binding / cytoplasmic translational initiation / NF-kappaB complex / negative regulation of DNA repair / oxidized purine DNA binding / cysteine-type endopeptidase activator activity involved in apoptotic process / rRNA modification in the nucleus and cytosol / negative regulation of intrinsic apoptotic signaling pathway in response to hydrogen peroxide / negative regulation of bicellular tight junction assembly / ubiquitin-like protein conjugating enzyme binding / regulation of establishment of cell polarity / negative regulation of phagocytosis / erythrocyte homeostasis / cytoplasmic side of rough endoplasmic reticulum membrane / Formation of the ternary complex, and subsequently, the 43S complex / ion channel inhibitor activity / protein kinase A binding / laminin receptor activity / Ribosomal scanning and start codon recognition / pigmentation / positive regulation of mitochondrial depolarization / Translation initiation complex formation / negative regulation of Wnt signaling pathway / fibroblast growth factor binding / Protein hydroxylation / monocyte chemotaxis / BH3 domain binding / negative regulation of translational frameshifting / regulation of adenylate cyclase-activating G protein-coupled receptor signaling pathway / SARS-CoV-1 modulates host translation machinery / positive regulation of GTPase activity / mTORC1-mediated signalling / TOR signaling / iron-sulfur cluster binding / Peptide chain elongation / regulation of cell division / cellular response to ethanol / Selenocysteine synthesis / Formation of a pool of free 40S subunits / positive regulation of intrinsic apoptotic signaling pathway by p53 class mediator / negative regulation of protein binding / Eukaryotic Translation Termination / protein serine/threonine kinase inhibitor activity / SRP-dependent cotranslational protein targeting to membrane / Response of EIF2AK4 (GCN2) to amino acid deficiency / ubiquitin ligase inhibitor activity / negative regulation of respiratory burst involved in inflammatory response / Viral mRNA Translation / endonucleolytic cleavage to generate mature 3'-end of SSU-rRNA from (SSU-rRNA, 5.8S rRNA, LSU-rRNA) / Nonsense Mediated Decay (NMD) independent of the Exon Junction Complex (EJC) / positive regulation of signal transduction by p53 class mediator / negative regulation of ubiquitin-dependent protein catabolic process / GTP hydrolysis and joining of the 60S ribosomal subunit / L13a-mediated translational silencing of Ceruloplasmin expression / Major pathway of rRNA processing in the nucleolus and cytosol / regulation of translational fidelity / positive regulation of microtubule polymerization / phagocytic cup / Nonsense Mediated Decay (NMD) enhanced by the Exon Junction Complex (EJC) / positive regulation of intrinsic apoptotic signaling pathway / spindle assembly / Protein methylation / Nuclear events stimulated by ALK signaling in cancer / endonucleolytic cleavage in ITS1 to separate SSU-rRNA from 5.8S rRNA and LSU-rRNA from tricistronic rRNA transcript (SSU-rRNA, 5.8S rRNA, LSU-rRNA) / translation regulator activity / rough endoplasmic reticulum / positive regulation of cell cycle / ribosomal small subunit export from nucleus / laminin binding / translation initiation factor binding / Amplification of signal from unattached kinetochores via a MAD2 inhibitory signal / DNA-(apurinic or apyrimidinic site) endonuclease activity / gastrulation / Maturation of protein E / Maturation of protein E / ER Quality Control Compartment (ERQC) / Myoclonic epilepsy of Lafora / FLT3 signaling by CBL mutants / signaling adaptor activity / MDM2/MDM4 family protein binding / negative regulation of protein ubiquitination / IRAK2 mediated activation of TAK1 complex / Prevention of phagosomal-lysosomal fusion / Alpha-protein kinase 1 signaling pathway Similarity search - Function | |||||||||||||||
| Biological species | Homo sapiens (human) | |||||||||||||||
| Method | single particle reconstruction / cryo EM / Resolution: 2.15 Å | |||||||||||||||
Authors | Pellegrino S / Dent KC / Spikes T / Warren AJ | |||||||||||||||
| Funding support | United Kingdom, 4 items
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Citation | Journal: Nucleic Acids Res / Year: 2023Title: Cryo-EM reconstruction of the human 40S ribosomal subunit at 2.15 Å resolution. Authors: Simone Pellegrino / Kyle C Dent / Tobias Spikes / Alan J Warren / ![]() Abstract: The chemical modification of ribosomal RNA and proteins is critical for ribosome assembly, for protein synthesis and may drive ribosome specialisation in development and disease. However, the ...The chemical modification of ribosomal RNA and proteins is critical for ribosome assembly, for protein synthesis and may drive ribosome specialisation in development and disease. However, the inability to accurately visualise these modifications has limited mechanistic understanding of the role of these modifications in ribosome function. Here we report the 2.15 Å resolution cryo-EM reconstruction of the human 40S ribosomal subunit. We directly visualise post-transcriptional modifications within the 18S rRNA and four post-translational modifications of ribosomal proteins. Additionally, we interpret the solvation shells in the core regions of the 40S ribosomal subunit and reveal how potassium and magnesium ions establish both universally conserved and eukaryote-specific coordination to promote the stabilisation and folding of key ribosomal elements. This work provides unprecedented structural details for the human 40S ribosomal subunit that will serve as an important reference for unravelling the functional role of ribosomal RNA modifications. | |||||||||||||||
| History |
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Structure visualization
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Downloads & links
-EMDB archive
| Map data | emd_14317.map.gz | 44.4 MB | EMDB map data format | |
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| Header (meta data) | emd-14317-v30.xml emd-14317.xml | 48.3 KB 48.3 KB | Display Display | EMDB header |
| FSC (resolution estimation) | emd_14317_fsc.xml | 18 KB | Display | FSC data file |
| Images | emd_14317.png | 59.5 KB | ||
| Filedesc metadata | emd-14317.cif.gz | 11.7 KB | ||
| Archive directory | http://ftp.pdbj.org/pub/emdb/structures/EMD-14317 ftp://ftp.pdbj.org/pub/emdb/structures/EMD-14317 | HTTPS FTP |
-Related structure data
| Related structure data | ![]() 7r4xMC C: citing same article ( M: atomic model generated by this map |
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| Similar structure data | Similarity search - Function & homology F&H Search |
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Links
| EMDB pages | EMDB (EBI/PDBe) / EMDataResource |
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| Related items in Molecule of the Month |
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Map
| File | Download / File: emd_14317.map.gz / Format: CCP4 / Size: 512 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: 0.8267 Å | ||||||||||||||||||||||||||||||||||||
| Density |
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| Symmetry | Space group: 1 | ||||||||||||||||||||||||||||||||||||
| Details | EMDB XML:
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-Supplemental data
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Sample components
+Entire : Human 40S ribosomal subunit
+Supramolecule #1: Human 40S ribosomal subunit
+Macromolecule #1: 60S ribosomal protein L41
+Macromolecule #3: 40S ribosomal protein S3a
+Macromolecule #4: 40S ribosomal protein S3
+Macromolecule #5: 40S ribosomal protein S4, X isoform
+Macromolecule #6: 40S ribosomal protein S5
+Macromolecule #7: 40S ribosomal protein S7
+Macromolecule #8: 40S ribosomal protein S8
+Macromolecule #9: 40S ribosomal protein S10
+Macromolecule #10: 40S ribosomal protein S11
+Macromolecule #11: 40S ribosomal protein S15
+Macromolecule #12: 40S ribosomal protein S16
+Macromolecule #13: 40S ribosomal protein S17
+Macromolecule #14: 40S ribosomal protein S18
+Macromolecule #15: 40S ribosomal protein S19
+Macromolecule #16: 40S ribosomal protein S20
+Macromolecule #17: 40S ribosomal protein S21
+Macromolecule #18: 40S ribosomal protein S23
+Macromolecule #19: 40S ribosomal protein S26
+Macromolecule #20: 40S ribosomal protein S28
+Macromolecule #21: 40S ribosomal protein S29
+Macromolecule #22: 40S ribosomal protein S2
+Macromolecule #23: 40S ribosomal protein S6
+Macromolecule #24: 40S ribosomal protein S9
+Macromolecule #25: 40S ribosomal protein S12
+Macromolecule #26: 40S ribosomal protein S13
+Macromolecule #27: 40S ribosomal protein S14
+Macromolecule #28: 40S ribosomal protein S15a
+Macromolecule #29: 40S ribosomal protein S24
+Macromolecule #30: 40S ribosomal protein S25
+Macromolecule #31: 40S ribosomal protein S27
+Macromolecule #32: 40S ribosomal protein S30
+Macromolecule #33: Ubiquitin-40S ribosomal protein S27a
+Macromolecule #34: Receptor of activated protein C kinase 1
+Macromolecule #35: 40S ribosomal protein SA
+Macromolecule #2: 18S ribosomal RNA
+Macromolecule #36: POTASSIUM ION
+Macromolecule #37: MAGNESIUM ION
+Macromolecule #38: ZINC ION
+Macromolecule #39: water
-Experimental details
-Structure determination
| Method | cryo EM |
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Processing | single particle reconstruction |
| Aggregation state | particle |
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Sample preparation
| Buffer | pH: 7.5 |
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| Grid | Model: Quantifoil R2/2 / Material: COPPER / Mesh: 300 / Support film - Material: CARBON / Support film - topology: CONTINUOUS / Support film - Film thickness: 2 |
| Vitrification | Cryogen name: ETHANE / Chamber humidity: 100 % / Chamber temperature: 277 K / Instrument: FEI VITROBOT MARK IV |
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Electron microscopy
| Microscope | FEI TITAN KRIOS |
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| Image recording | Film or detector model: GATAN K3 (6k x 4k) / Average electron dose: 40.56 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 |
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About Yorodumi



Keywords
Homo sapiens (human)
Authors
United Kingdom, 4 items
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Y (Row.)
X (Col.)





















Processing
FIELD EMISSION GUN

