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- EMDB-4427: The structure of a di-ribosome (disome) as a unit for RQC and NGD... -
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Open data
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Basic information
Entry | Database: EMDB / ID: EMD-4427 | ||||||||||||
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Title | The structure of a di-ribosome (disome) as a unit for RQC and NGD quality control pathways recognition. | ||||||||||||
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![]() | ribosome / disome / di-ribosome / stalling / TRANSLATION | ||||||||||||
Function / homology | ![]() maturation of SSU-rRNA from tricistronic rRNA transcript (SSU-rRNA, LSU-rRNA,5S) / Negative regulators of DDX58/IFIH1 signaling / regulation of amino acid metabolic process / negative regulation of glucose mediated signaling pathway / positive regulation of translational fidelity / RMTs methylate histone arginines / Protein methylation / mTORC1-mediated signalling / Protein hydroxylation / ribosome-associated ubiquitin-dependent protein catabolic process ...maturation of SSU-rRNA from tricistronic rRNA transcript (SSU-rRNA, LSU-rRNA,5S) / Negative regulators of DDX58/IFIH1 signaling / regulation of amino acid metabolic process / negative regulation of glucose mediated signaling pathway / positive regulation of translational fidelity / RMTs methylate histone arginines / Protein methylation / mTORC1-mediated signalling / Protein hydroxylation / ribosome-associated ubiquitin-dependent protein catabolic process / GDP-dissociation inhibitor activity / positive regulation of nuclear-transcribed mRNA catabolic process, deadenylation-dependent decay / pre-mRNA 5'-splice site binding / Formation of the ternary complex, and subsequently, the 43S complex / Translation initiation complex formation / Ribosomal scanning and start codon recognition / preribosome, small subunit precursor / nonfunctional rRNA decay / response to cycloheximide / cleavage in ITS2 between 5.8S rRNA and LSU-rRNA of tricistronic rRNA transcript (SSU-rRNA, 5.8S rRNA, LSU-rRNA) / Major pathway of rRNA processing in the nucleolus and cytosol / mRNA destabilization / SRP-dependent cotranslational protein targeting to membrane / GTP hydrolysis and joining of the 60S ribosomal subunit / negative regulation of translational frameshifting / Nonsense Mediated Decay (NMD) independent of the Exon Junction Complex (EJC) / Nonsense Mediated Decay (NMD) enhanced by the Exon Junction Complex (EJC) / negative regulation of mRNA splicing, via spliceosome / Formation of a pool of free 40S subunits / preribosome, large subunit precursor / L13a-mediated translational silencing of Ceruloplasmin expression / endonucleolytic cleavage to generate mature 3'-end of SSU-rRNA from (SSU-rRNA, 5.8S rRNA, LSU-rRNA) / translational elongation / ribosomal large subunit export from nucleus / G-protein alpha-subunit binding / 90S preribosome / positive regulation of protein kinase activity / Ub-specific processing proteases / ribosomal subunit export from nucleus / regulation of translational fidelity / protein-RNA complex assembly / 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) / translational termination / maturation of LSU-rRNA / ribosomal small subunit export from nucleus / translation regulator activity / DNA-(apurinic or apyrimidinic site) endonuclease activity / rescue of stalled ribosome / cellular response to amino acid starvation / ribosome assembly / maturation of LSU-rRNA from tricistronic rRNA transcript (SSU-rRNA, 5.8S rRNA, LSU-rRNA) / ribosomal large subunit biogenesis / protein kinase C binding / maturation of SSU-rRNA from tricistronic rRNA transcript (SSU-rRNA, 5.8S rRNA, LSU-rRNA) / maturation of SSU-rRNA / translational initiation / small-subunit processome / macroautophagy / maintenance of translational fidelity / modification-dependent protein catabolic process / protein tag activity / cytoplasmic stress granule / rRNA processing / ribosome biogenesis / ribosome binding / ribosomal small subunit biogenesis / ribosomal small subunit assembly / small ribosomal subunit / 5S rRNA binding / ribosomal large subunit assembly / cytosolic small ribosomal subunit / large ribosomal subunit rRNA binding / small ribosomal subunit rRNA binding / cytosolic large ribosomal subunit / cytoplasmic translation / negative regulation of translation / rRNA binding / protein ubiquitination / ribosome / structural constituent of ribosome / G protein-coupled receptor signaling pathway / translation / negative regulation of gene expression / response to antibiotic / mRNA binding / ubiquitin protein ligase binding / nucleolus / mitochondrion / RNA binding / zinc ion binding / nucleoplasm / nucleus / cytosol / cytoplasm Similarity search - Function | ||||||||||||
Biological species | ![]() ![]() | ||||||||||||
Method | single particle reconstruction / cryo EM / Resolution: 5.3 Å | ||||||||||||
![]() | Tesina P / Cheng J | ||||||||||||
Funding support | ![]() ![]()
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![]() | ![]() Title: Collided ribosomes form a unique structural interface to induce Hel2-driven quality control pathways. Authors: Ken Ikeuchi / Petr Tesina / Yoshitaka Matsuo / Takato Sugiyama / Jingdong Cheng / Yasushi Saeki / Keiji Tanaka / Thomas Becker / Roland Beckmann / Toshifumi Inada / ![]() ![]() Abstract: Ribosome stalling triggers quality control pathways targeting the mRNA (NGD: no-go decay) and the nascent polypeptide (RQC: ribosome-associated quality control). RQC requires Hel2-dependent uS10 ...Ribosome stalling triggers quality control pathways targeting the mRNA (NGD: no-go decay) and the nascent polypeptide (RQC: ribosome-associated quality control). RQC requires Hel2-dependent uS10 ubiquitination and the RQT complex in yeast. Here, we report that Hel2-dependent uS10 ubiquitination and Slh1/Rqt2 are crucial for RQC and NGD induction within a di-ribosome (disome) unit, which consists of the leading stalled ribosome and the following colliding ribosome. Hel2 preferentially ubiquitinated a disome over a monosome on a quality control inducing reporter mRNA in an translation reaction. Cryo-EM analysis of the disome unit revealed a distinct structural arrangement suitable for recognition and modification by Hel2. The absence of the RQT complex or uS10 ubiquitination resulted in the elimination of NGD within the disome unit. Instead, we observed Hel2-mediated cleavages upstream of the disome, governed by initial Not4-mediated monoubiquitination of eS7 and followed by Hel2-mediated K63-linked polyubiquitination. We propose that Hel2-mediated ribosome ubiquitination is required both for canonical NGD (NGD) and RQC coupled to the disome and that RQC-uncoupled NGD outside the disome (NGD) can occur in a Not4-dependent manner. | ||||||||||||
History |
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Structure visualization
Movie |
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Structure viewer | EM map: ![]() ![]() ![]() |
Supplemental images |
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Downloads & links
-EMDB archive
Map data | ![]() | 260.1 MB | ![]() | |
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Header (meta data) | ![]() ![]() | 96.4 KB 96.4 KB | Display Display | ![]() |
FSC (resolution estimation) | ![]() | 17.9 KB | Display | ![]() |
Images | ![]() | 52.5 KB | ||
Filedesc metadata | ![]() | 18.5 KB | ||
Archive directory | ![]() ![]() | HTTPS FTP |
-Related structure data
Related structure data | ![]() 6i7oMC M: atomic model generated by this map C: citing same article ( |
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Similar structure data |
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Links
EMDB pages | ![]() ![]() |
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Related items in Molecule of the Month |
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Map
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Projections & slices | Image control
Images are generated by Spider. | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Voxel size | X=Y=Z: 1.4996 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 : Cryo-EM structure of a native stalled di-ribosome (disome) comple...
+Supramolecule #1: Cryo-EM structure of a native stalled di-ribosome (disome) comple...
+Macromolecule #1: 25S ribosomal RNA
+Macromolecule #2: 5S ribosomal RNA
+Macromolecule #3: 5.8S ribosomal RNA
+Macromolecule #18: 18S ribosomal RNA
+Macromolecule #80: P-site tRNA
+Macromolecule #81: E-site tRNA
+Macromolecule #82: A/P hybrid tRNA
+Macromolecule #83: P/E hybrid tRNA
+Macromolecule #84: mRNA
+Macromolecule #4: 60S ribosomal protein L2-A
+Macromolecule #5: 60S ribosomal protein L3
+Macromolecule #6: 60S ribosomal protein L4-A
+Macromolecule #7: 60S ribosomal protein L5
+Macromolecule #8: 60S ribosomal protein L6-A
+Macromolecule #9: 60S ribosomal protein L7-A
+Macromolecule #10: 60S ribosomal protein L8-A
+Macromolecule #11: 60S ribosomal protein L9-A
+Macromolecule #12: 60S ribosomal protein L10
+Macromolecule #13: 60S ribosomal protein L11-B
+Macromolecule #14: 60S ribosomal protein L13-A
+Macromolecule #15: 60S ribosomal protein L14-A
+Macromolecule #16: 60S ribosomal protein L15-A
+Macromolecule #17: 60S ribosomal protein L16-A
+Macromolecule #19: 40S ribosomal protein S0-A
+Macromolecule #20: 40S ribosomal protein S1-A
+Macromolecule #21: 40S ribosomal protein S2
+Macromolecule #22: 40S ribosomal protein S3
+Macromolecule #23: 40S ribosomal protein S4-A
+Macromolecule #24: 40S ribosomal protein S5
+Macromolecule #25: 40S ribosomal protein S6-A
+Macromolecule #26: 40S ribosomal protein S7-A
+Macromolecule #27: 40S ribosomal protein S8-A
+Macromolecule #28: 40S ribosomal protein S9-A
+Macromolecule #29: 40S ribosomal protein S10-A
+Macromolecule #30: 40S ribosomal protein S11-A
+Macromolecule #31: 40S ribosomal protein S12
+Macromolecule #32: 40S ribosomal protein S13
+Macromolecule #33: 40S ribosomal protein S14-B
+Macromolecule #34: 40S ribosomal protein S15
+Macromolecule #35: 40S ribosomal protein S16-A
+Macromolecule #36: 40S ribosomal protein S17-A
+Macromolecule #37: 40S ribosomal protein S18-A
+Macromolecule #38: 40S ribosomal protein S19-A
+Macromolecule #39: 40S ribosomal protein S20
+Macromolecule #40: 40S ribosomal protein S21-A
+Macromolecule #41: 40S ribosomal protein S22-A
+Macromolecule #42: 40S ribosomal protein S23-A
+Macromolecule #43: 40S ribosomal protein S24-A
+Macromolecule #44: 40S ribosomal protein S25-A
+Macromolecule #45: 40S ribosomal protein S26-B
+Macromolecule #46: 40S ribosomal protein S27-A
+Macromolecule #47: 40S ribosomal protein S28-A
+Macromolecule #48: 40S ribosomal protein S29-A
+Macromolecule #49: 40S ribosomal protein S30-A
+Macromolecule #50: Ubiquitin-40S ribosomal protein S31
+Macromolecule #51: Guanine nucleotide-binding protein subunit beta-like protein
+Macromolecule #52: 60S ribosomal protein L17-A
+Macromolecule #53: 60S ribosomal protein L18-A
+Macromolecule #54: 60S ribosomal protein L19-A
+Macromolecule #55: 60S ribosomal protein L20-A
+Macromolecule #56: 60S ribosomal protein L21-A
+Macromolecule #57: 60S ribosomal protein L22-A
+Macromolecule #58: 60S ribosomal protein L23-A
+Macromolecule #59: 60S ribosomal protein L24-A
+Macromolecule #60: 60S ribosomal protein L25
+Macromolecule #61: 60S ribosomal protein L26-A
+Macromolecule #62: 60S ribosomal protein L27-A
+Macromolecule #63: 60S ribosomal protein L28
+Macromolecule #64: 60S ribosomal protein L29
+Macromolecule #65: 60S ribosomal protein L30
+Macromolecule #66: 60S ribosomal protein L31-A
+Macromolecule #67: 60S ribosomal protein L32
+Macromolecule #68: 60S ribosomal protein L33-A
+Macromolecule #69: 60S ribosomal protein L34-A
+Macromolecule #70: 60S ribosomal protein L35-A
+Macromolecule #71: 60S ribosomal protein L36-A
+Macromolecule #72: 60S ribosomal protein L37-A
+Macromolecule #73: 60S ribosomal protein L38
+Macromolecule #74: 60S ribosomal protein L39
+Macromolecule #75: Ubiquitin-60S ribosomal protein L40
+Macromolecule #76: 60S ribosomal protein L41-B
+Macromolecule #77: 60S ribosomal protein L42-A
+Macromolecule #78: 60S ribosomal protein L43-A
+Macromolecule #79: 60S acidic ribosomal protein P0
+Macromolecule #85: ZINC ION
-Experimental details
-Structure determination
Method | cryo EM |
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![]() | single particle reconstruction |
Aggregation state | particle |
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Sample preparation
Buffer | pH: 7.2 |
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Vitrification | Cryogen name: ETHANE |
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Electron microscopy
Microscope | FEI TITAN KRIOS |
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Image recording | Film or detector model: FEI FALCON II (4k x 4k) / Average electron dose: 2.5 e/Å2 |
Electron beam | Acceleration voltage: 300 kV / Electron source: ![]() |
Electron optics | Illumination mode: FLOOD BEAM / Imaging mode: BRIGHT FIELD |
Experimental equipment | ![]() Model: Titan Krios / Image courtesy: FEI Company |