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Yorodumi- EMDB-9703: Cryo-EM structure of the HCV IRES dependently initiated CMV-stall... -
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Open data
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Basic information
| Entry | Database: EMDB / ID: EMD-9703 | |||||||||
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| Title | Cryo-EM structure of the HCV IRES dependently initiated CMV-stalled 80S ribosome (Structure iv) | |||||||||
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Keywords | Ribosome / Translation | |||||||||
| Function / homology | Function and homology informationtranslation termination factor activity / translation release factor complex / cytoplasmic translational termination / regulation of translational termination / translation release factor activity, codon specific / translation at presynapse / protein methylation / exit from mitosis / eukaryotic 80S initiation complex / negative regulation of protein neddylation ...translation termination factor activity / translation release factor complex / cytoplasmic translational termination / regulation of translational termination / translation release factor activity, codon specific / translation at presynapse / protein methylation / exit from mitosis / eukaryotic 80S initiation complex / negative regulation of protein neddylation / optic nerve development / response to insecticide / translation release factor activity / regulation of translation involved in cellular response to UV / oxidized pyrimidine DNA binding / response to TNF agonist / negative regulation of endoplasmic reticulum unfolded protein response / positive regulation of base-excision repair / axial mesoderm development / negative regulation of formation of translation preinitiation complex / regulation of G1 to G0 transition / positive regulation of respiratory burst involved in inflammatory response / positive regulation of intrinsic apoptotic signaling pathway in response to DNA damage / ribosomal protein import into nucleus / positive regulation of gastrulation / protein tyrosine kinase inhibitor activity / protein-DNA complex disassembly / IRE1-RACK1-PP2A complex / 90S preribosome assembly / positive regulation of endodeoxyribonuclease activity / nucleolus organization / positive regulation of intrinsic apoptotic signaling pathway in response to DNA damage by p53 class mediator / sequence-specific mRNA binding / positive regulation of Golgi to plasma membrane protein transport / retinal ganglion cell axon guidance / TNFR1-mediated ceramide production / negative regulation of DNA repair / negative regulation of RNA splicing / GAIT complex / peptidyl-tRNA hydrolase activity / positive regulation of DNA damage response, signal transduction by p53 class mediator / supercoiled DNA binding / TORC2 complex binding / alpha-beta T cell differentiation / neural crest cell differentiation / G1 to G0 transition / NF-kappaB complex / nuclear-transcribed mRNA catabolic process, nonsense-mediated decay / cysteine-type endopeptidase activator activity involved in apoptotic process / oxidized purine DNA binding / positive regulation of ubiquitin-protein transferase activity / negative regulation of intrinsic apoptotic signaling pathway in response to hydrogen peroxide / regulation of establishment of cell polarity / negative regulation of bicellular tight junction assembly / ubiquitin-like protein conjugating enzyme binding / middle ear morphogenesis / negative regulation of phagocytosis / rRNA modification in the nucleus and cytosol / Formation of the ternary complex, and subsequently, the 43S complex / erythrocyte homeostasis / cytoplasmic side of rough endoplasmic reticulum membrane / laminin receptor activity / negative regulation of ubiquitin protein ligase activity / protein kinase A binding / ion channel inhibitor activity / Ribosomal scanning and start codon recognition / pigmentation / homeostatic process / Translation initiation complex formation / positive regulation of mitochondrial depolarization / macrophage chemotaxis / positive regulation of T cell receptor signaling pathway / negative regulation of Wnt signaling pathway / fibroblast growth factor binding / lung morphogenesis / male meiosis I / monocyte chemotaxis / positive regulation of activated T cell proliferation / positive regulation of natural killer cell proliferation / negative regulation of translational frameshifting / TOR signaling / Protein hydroxylation / BH3 domain binding / SARS-CoV-1 modulates host translation machinery / regulation of adenylate cyclase-activating G protein-coupled receptor signaling pathway / cellular response to ethanol / regulation of cell division / iron-sulfur cluster binding / mTORC1-mediated signalling / Peptide chain elongation / Selenocysteine synthesis / Formation of a pool of free 40S subunits / positive regulation of intrinsic apoptotic signaling pathway by p53 class mediator / endonucleolytic cleavage to generate mature 3'-end of SSU-rRNA from (SSU-rRNA, 5.8S rRNA, LSU-rRNA) / Eukaryotic Translation Termination / ubiquitin ligase inhibitor activity / positive regulation of GTPase activity / cellular response to actinomycin D / blastocyst development / Response of EIF2AK4 (GCN2) to amino acid deficiency Similarity search - Function | |||||||||
| Biological species | Homo sapiens (human) | |||||||||
| Method | single particle reconstruction / cryo EM / Resolution: 3.9 Å | |||||||||
Authors | Yokoyama T / Shigematsu H / Shirouzu M / Imataka H / Ito T | |||||||||
| Funding support | Japan, 1 items
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Citation | Journal: Mol Cell / Year: 2019Title: HCV IRES Captures an Actively Translating 80S Ribosome. Authors: Takeshi Yokoyama / Kodai Machida / Wakana Iwasaki / Tomoaki Shigeta / Madoka Nishimoto / Mari Takahashi / Ayako Sakamoto / Mayumi Yonemochi / Yoshie Harada / Hideki Shigematsu / Mikako ...Authors: Takeshi Yokoyama / Kodai Machida / Wakana Iwasaki / Tomoaki Shigeta / Madoka Nishimoto / Mari Takahashi / Ayako Sakamoto / Mayumi Yonemochi / Yoshie Harada / Hideki Shigematsu / Mikako Shirouzu / Hisashi Tadakuma / Hiroaki Imataka / Takuhiro Ito / ![]() Abstract: Translation initiation of hepatitis C virus (HCV) genomic RNA is induced by an internal ribosome entry site (IRES). Our cryoelectron microscopy (cryo-EM) analysis revealed that the HCV IRES binds to ...Translation initiation of hepatitis C virus (HCV) genomic RNA is induced by an internal ribosome entry site (IRES). Our cryoelectron microscopy (cryo-EM) analysis revealed that the HCV IRES binds to the solvent side of the 40S platform of the cap-dependently translating 80S ribosome. Furthermore, we obtained the cryo-EM structures of the HCV IRES capturing the 40S subunit of the IRES-dependently translating 80S ribosome. In the elucidated structures, the HCV IRES "body," consisting of domain III except for subdomain IIIb, binds to the 40S subunit, while the "long arm," consisting of domain II, remains flexible and does not impede the ongoing translation. Biochemical experiments revealed that the cap-dependently translating ribosome becomes a better substrate for the HCV IRES than the free ribosome. Therefore, the HCV IRES is likely to efficiently induce the translation initiation of its downstream mRNA with the captured translating ribosome as soon as the ongoing translation terminates. | |||||||||
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Structure visualization
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| Structure viewer | EM map: SurfView Molmil Jmol/JSmol |
| Supplemental images |
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Downloads & links
-EMDB archive
| Map data | emd_9703.map.gz | 265 MB | EMDB map data format | |
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| Header (meta data) | emd-9703-v30.xml emd-9703.xml | 99.7 KB 99.7 KB | Display Display | EMDB header |
| FSC (resolution estimation) | emd_9703_fsc.xml | 14.8 KB | Display | FSC data file |
| Images | emd_9703.png | 161.8 KB | ||
| Filedesc metadata | emd-9703.cif.gz | 20 KB | ||
| Archive directory | http://ftp.pdbj.org/pub/emdb/structures/EMD-9703 ftp://ftp.pdbj.org/pub/emdb/structures/EMD-9703 | HTTPS FTP |
-Validation report
| Summary document | emd_9703_validation.pdf.gz | 726.1 KB | Display | EMDB validaton report |
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| Full document | emd_9703_full_validation.pdf.gz | 725.7 KB | Display | |
| Data in XML | emd_9703_validation.xml.gz | 14.2 KB | Display | |
| Data in CIF | emd_9703_validation.cif.gz | 19.5 KB | Display | |
| Arichive directory | https://ftp.pdbj.org/pub/emdb/validation_reports/EMD-9703 ftp://ftp.pdbj.org/pub/emdb/validation_reports/EMD-9703 | HTTPS FTP |
-Related structure data
| Related structure data | ![]() 6ip8MC ![]() 9699C ![]() 9701C ![]() 9702C ![]() 9704C ![]() 6ip5C ![]() 6ip6C C: citing same article ( M: atomic model generated by this map |
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| Similar structure data |
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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_9703.map.gz / Format: CCP4 / Size: 282.6 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: 1.49 Å | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Density |
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| Symmetry | Space group: 1 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Details | EMDB XML:
CCP4 map header:
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-Supplemental data
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Sample components
+Entire : Human 80S ribosome
+Supramolecule #1: Human 80S ribosome
+Macromolecule #1: 28S ribosomal RNA
+Macromolecule #2: 5S ribosomal RNA
+Macromolecule #3: 5.8S ribosomal RNA
+Macromolecule #46: 18S ribosomal RNA
+Macromolecule #80: mRNA
+Macromolecule #83: P-site tRNA
+Macromolecule #84: HCV-IRES RNA
+Macromolecule #4: 60S ribosomal protein L8
+Macromolecule #5: 60S ribosomal protein L3
+Macromolecule #6: 60S ribosomal protein L4
+Macromolecule #7: 60S ribosomal protein L5
+Macromolecule #8: 60S ribosomal protein L6
+Macromolecule #9: 60S ribosomal protein L7
+Macromolecule #10: 60S ribosomal protein L7a
+Macromolecule #11: 60S ribosomal protein L9
+Macromolecule #12: 60S ribosomal protein L10-like
+Macromolecule #13: 60S ribosomal protein L11
+Macromolecule #14: 60S ribosomal protein L13
+Macromolecule #15: 60S ribosomal protein L14
+Macromolecule #16: 60S ribosomal protein L15
+Macromolecule #17: 60S ribosomal protein L13a
+Macromolecule #18: 60S ribosomal protein L17
+Macromolecule #19: 60S ribosomal protein L18
+Macromolecule #20: 60S ribosomal protein L19
+Macromolecule #21: 60S ribosomal protein L18a
+Macromolecule #22: 60S ribosomal protein L21
+Macromolecule #23: 60S ribosomal protein L22
+Macromolecule #24: 60S ribosomal protein L23
+Macromolecule #25: 60S ribosomal protein L24
+Macromolecule #26: 60S ribosomal protein L23a
+Macromolecule #27: 60S ribosomal protein L26
+Macromolecule #28: 60S ribosomal protein L27
+Macromolecule #29: 60S ribosomal protein L27a
+Macromolecule #30: 60S ribosomal protein L29
+Macromolecule #31: 60S ribosomal protein L30
+Macromolecule #32: 60S ribosomal protein L31
+Macromolecule #33: 60S ribosomal protein L32
+Macromolecule #34: 60S ribosomal protein L35a
+Macromolecule #35: 60S ribosomal protein L34
+Macromolecule #36: 60S ribosomal protein L35
+Macromolecule #37: 60S ribosomal protein L36
+Macromolecule #38: 60S ribosomal protein L37
+Macromolecule #39: 60S ribosomal protein L38
+Macromolecule #40: 60S ribosomal protein L39
+Macromolecule #41: Ubiquitin-60S ribosomal protein L40
+Macromolecule #42: 60S ribosomal protein L41
+Macromolecule #43: 60S ribosomal protein L36a
+Macromolecule #44: 60S ribosomal protein L37a
+Macromolecule #45: 60S ribosomal protein L28
+Macromolecule #47: 40S ribosomal protein SA
+Macromolecule #48: 40S ribosomal protein S3a
+Macromolecule #49: 40S ribosomal protein S3
+Macromolecule #50: 40S ribosomal protein S4, X isoform
+Macromolecule #51: 40S ribosomal protein S5
+Macromolecule #52: 40S ribosomal protein S7
+Macromolecule #53: 40S ribosomal protein S8
+Macromolecule #54: 40S ribosomal protein S10
+Macromolecule #55: 40S ribosomal protein S11
+Macromolecule #56: 40S ribosomal protein S15
+Macromolecule #57: 40S ribosomal protein S16
+Macromolecule #58: 40S ribosomal protein S17
+Macromolecule #59: 40S ribosomal protein S18
+Macromolecule #60: 40S ribosomal protein S19
+Macromolecule #61: 40S ribosomal protein S20
+Macromolecule #62: 40S ribosomal protein S21
+Macromolecule #63: 40S ribosomal protein S23
+Macromolecule #64: 40S ribosomal protein S26
+Macromolecule #65: 40S ribosomal protein S28
+Macromolecule #66: 40S ribosomal protein S29
+Macromolecule #67: Receptor of activated protein C kinase 1
+Macromolecule #68: 40S ribosomal protein S2
+Macromolecule #69: 40S ribosomal protein S6
+Macromolecule #70: 40S ribosomal protein S9
+Macromolecule #71: 40S ribosomal protein S12
+Macromolecule #72: 40S ribosomal protein S13
+Macromolecule #73: 40S ribosomal protein S14
+Macromolecule #74: 40S ribosomal protein S15a
+Macromolecule #75: 40S ribosomal protein S24
+Macromolecule #76: 40S ribosomal protein S25
+Macromolecule #77: 40S ribosomal protein S27
+Macromolecule #78: 40S ribosomal protein S30
+Macromolecule #79: Ubiquitin-40S ribosomal protein S27a
+Macromolecule #81: Eukaryotic peptide chain release factor subunit 1
+Macromolecule #82: nascent peptide
-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 R1.2/1.3 / Material: COPPER / Mesh: 300 / Support film - Material: CARBON / Support film - topology: CONTINUOUS |
| Vitrification | Cryogen name: ETHANE / Chamber humidity: 100 % / Chamber temperature: 277 K / Instrument: FEI VITROBOT MARK IV |
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Electron microscopy
| Microscope | FEI TECNAI ARCTICA |
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| Image recording | Film or detector model: GATAN K2 SUMMIT (4k x 4k) / Detector mode: SUPER-RESOLUTION / Average electron dose: 50.0 e/Å2 |
| Electron beam | Acceleration voltage: 200 kV / Electron source: FIELD EMISSION GUN |
| Electron optics | C2 aperture diameter: 50.0 µm / Calibrated magnification: 33557 / Illumination mode: FLOOD BEAM / Imaging mode: BRIGHT FIELD / Cs: 2.7 mm / Nominal magnification: 23500 |
| Sample stage | Cooling holder cryogen: NITROGEN |
| Experimental equipment | ![]() Model: Talos Arctica / Image courtesy: FEI Company |
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About Yorodumi


Keywords
Homo sapiens (human)
Authors
Japan, 1 items
Citation
UCSF Chimera














































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