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Yorodumi- PDB-6xir: Cryo-EM Structure of K63 Ubiquitinated Yeast Translocating Riboso... -
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-Basic information
Entry | Database: PDB / ID: 6xir | ||||||
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Title | Cryo-EM Structure of K63 Ubiquitinated Yeast Translocating Ribosome under Oxidative Stress | ||||||
Components |
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Keywords | RIBOSOME / K63 ubiquitin / oxidative stress / translation | ||||||
Function / homology | Function and homology information negative regulation of glucose mediated signaling pathway / negative regulation of translational frameshifting / mTORC1-mediated signalling / Protein hydroxylation / ribosome-associated ubiquitin-dependent protein catabolic process / GDP-dissociation inhibitor activity / hexon binding / nonfunctional rRNA decay / pre-mRNA 5'-splice site binding / Formation of the ternary complex, and subsequently, the 43S complex ...negative regulation of glucose mediated signaling pathway / negative regulation of translational frameshifting / mTORC1-mediated signalling / Protein hydroxylation / ribosome-associated ubiquitin-dependent protein catabolic process / GDP-dissociation inhibitor activity / hexon binding / nonfunctional rRNA decay / pre-mRNA 5'-splice site binding / Formation of the ternary complex, and subsequently, the 43S complex / Translation initiation complex formation / cleavage in ITS2 between 5.8S rRNA and LSU-rRNA of tricistronic rRNA transcript (SSU-rRNA, 5.8S rRNA, LSU-rRNA) / Ribosomal scanning and start codon recognition / response to cycloheximide / 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 / Nonsense Mediated Decay (NMD) independent of the Exon Junction Complex (EJC) / Nonsense Mediated Decay (NMD) enhanced by the Exon Junction Complex (EJC) / Formation of a pool of free 40S subunits / negative regulation of mRNA splicing, via spliceosome / preribosome, large subunit precursor / regulation of amino acid metabolic process / L13a-mediated translational silencing of Ceruloplasmin expression / 90S preribosome / G-protein alpha-subunit binding / positive regulation of protein kinase activity / endonucleolytic cleavage to generate mature 3'-end of SSU-rRNA from (SSU-rRNA, 5.8S rRNA, LSU-rRNA) / regulation of translational fidelity / protein-RNA complex assembly / ribosomal subunit export from nucleus / translation regulator activity / 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) / maturation of LSU-rRNA / cellular response to amino acid starvation / maturation of LSU-rRNA from tricistronic rRNA transcript (SSU-rRNA, 5.8S rRNA, LSU-rRNA) / rescue of stalled ribosome / ribosomal large subunit biogenesis / maturation of SSU-rRNA from tricistronic rRNA transcript (SSU-rRNA, 5.8S rRNA, LSU-rRNA) / maturation of SSU-rRNA / small-subunit processome / translational initiation / protein kinase C binding / macroautophagy / positive regulation of apoptotic signaling pathway / maintenance of translational fidelity / cytoplasmic stress granule / rRNA processing / ribosomal small subunit biogenesis / small ribosomal subunit rRNA binding / ribosome biogenesis / viral capsid / ribosome binding / ribosomal small subunit assembly / small ribosomal subunit / 5S rRNA binding / large ribosomal subunit rRNA binding / cytosolic small ribosomal subunit / ribosomal large subunit assembly / cytoplasmic translation / cytosolic large ribosomal subunit / negative regulation of translation / rRNA binding / ribosome / structural constituent of ribosome / positive regulation of protein phosphorylation / G protein-coupled receptor signaling pathway / translation / negative regulation of gene expression / response to antibiotic / mRNA binding / host cell nucleus / nucleolus / mitochondrion / RNA binding / zinc ion binding / nucleoplasm / nucleus / metal ion binding / cytosol / cytoplasm Similarity search - Function | ||||||
Biological species | Saccharomyces cerevisiae (brewer's yeast) | ||||||
Method | ELECTRON MICROSCOPY / single particle reconstruction / cryo EM / Resolution: 3.2 Å | ||||||
Authors | Zhou, Y. / Bartesaghi, A. / Silva, G.M. | ||||||
Funding support | United States, 1items
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Citation | Journal: Proc Natl Acad Sci U S A / Year: 2020 Title: Structural impact of K63 ubiquitin on yeast translocating ribosomes under oxidative stress. Authors: Ye Zhou / Panagiotis L Kastritis / Shannon E Dougherty / Jonathan Bouvette / Allen L Hsu / Laura Burbaum / Shyamal Mosalaganti / Stefan Pfeffer / Wim J H Hagen / Friedrich Förster / Mario J ...Authors: Ye Zhou / Panagiotis L Kastritis / Shannon E Dougherty / Jonathan Bouvette / Allen L Hsu / Laura Burbaum / Shyamal Mosalaganti / Stefan Pfeffer / Wim J H Hagen / Friedrich Förster / Mario J Borgnia / Christine Vogel / Martin Beck / Alberto Bartesaghi / Gustavo M Silva / Abstract: Subpopulations of ribosomes are responsible for fine tuning the control of protein synthesis in dynamic environments. K63 ubiquitination of ribosomes has emerged as a new posttranslational ...Subpopulations of ribosomes are responsible for fine tuning the control of protein synthesis in dynamic environments. K63 ubiquitination of ribosomes has emerged as a new posttranslational modification that regulates protein synthesis during cellular response to oxidative stress. K63 ubiquitin, a type of ubiquitin chain that functions independently of the proteasome, modifies several sites at the surface of the ribosome, however, we lack a molecular understanding on how this modification affects ribosome structure and function. Using cryoelectron microscopy (cryo-EM), we resolved the first three-dimensional (3D) structures of K63 ubiquitinated ribosomes from oxidatively stressed yeast cells at 3.5-3.2 Å resolution. We found that K63 ubiquitinated ribosomes are also present in a polysome arrangement, similar to that observed in yeast polysomes, which we determined using cryoelectron tomography (cryo-ET). We further showed that K63 ubiquitinated ribosomes are captured uniquely at the rotated pretranslocation stage of translation elongation. In contrast, cryo-EM structures of ribosomes from mutant cells lacking K63 ubiquitin resolved at 4.4-2.7 Å showed 80S ribosomes represented in multiple states of translation, suggesting that K63 ubiquitin regulates protein synthesis at a selective stage of elongation. Among the observed structural changes, ubiquitin mediates the destabilization of proteins in the 60S P-stalk and in the 40S beak, two binding regions of the eukaryotic elongation factor eEF2. These changes would impact eEF2 function, thus, inhibiting translocation. Our findings help uncover the molecular effects of K63 ubiquitination on ribosomes, providing a model of translation control during oxidative stress, which supports elongation halt at pretranslocation. | ||||||
History |
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-Structure visualization
Movie |
Movie viewer |
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Structure viewer | Molecule: MolmilJmol/JSmol |
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PDBx/mmCIF format | 6xir.cif.gz | 4.5 MB | Display | PDBx/mmCIF format |
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PDB format | pdb6xir.ent.gz | Display | PDB format | |
PDBx/mmJSON format | 6xir.json.gz | Tree view | PDBx/mmJSON format | |
Others | Other downloads |
-Validation report
Summary document | 6xir_validation.pdf.gz | 1.6 MB | Display | wwPDB validaton report |
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Full document | 6xir_full_validation.pdf.gz | 1.7 MB | Display | |
Data in XML | 6xir_validation.xml.gz | 318.8 KB | Display | |
Data in CIF | 6xir_validation.cif.gz | 562.8 KB | Display | |
Arichive directory | https://data.pdbj.org/pub/pdb/validation_reports/xi/6xir ftp://data.pdbj.org/pub/pdb/validation_reports/xi/6xir | HTTPS FTP |
-Related structure data
Related structure data | 22198MC 6xiqC C: citing same article (ref.) M: map data used to model this data |
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Similar structure data |
-Links
-Assembly
Deposited unit |
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1 |
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-Components
+60S ribosomal protein ... , 28 types, 28 molecules AEFLMNOPQRSTUVXYZacdfghijlop
+Protein , 24 types, 24 molecules BCDGHIJWbekrstvyAFAKAMAPAQASATAV
-40S ribosomal protein ... , 17 types, 17 molecules AAABquwxzADAEAGAHAIAJALANAOAR
#26: Protein | Mass: 12757.445 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Saccharomyces cerevisiae (brewer's yeast) / Strain: SUB413 / References: UniProt: Q08745 |
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#27: Protein | Mass: 17785.934 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Saccharomyces cerevisiae (brewer's yeast) / Strain: SUB413 / References: UniProt: P0CX47 |
#47: Protein | Mass: 28051.330 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Saccharomyces cerevisiae (brewer's yeast) / Strain: SUB413 / References: UniProt: P32905 |
#51: Protein | Mass: 29469.330 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Saccharomyces cerevisiae (brewer's yeast) / Strain: SUB413 / References: UniProt: P0CX35 |
#53: Protein | Mass: 27054.486 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Saccharomyces cerevisiae (brewer's yeast) / Strain: SUB413 / References: UniProt: P0CX37 |
#54: Protein | Mass: 21658.209 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Saccharomyces cerevisiae (brewer's yeast) / Strain: SUB413 / References: UniProt: P26786 |
#56: Protein | Mass: 22487.893 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Saccharomyces cerevisiae (brewer's yeast) / Strain: SUB413 / References: UniProt: O13516 |
#57: Protein | Mass: 17059.945 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Saccharomyces cerevisiae (brewer's yeast) / Strain: SUB413 / References: UniProt: P05756 |
#58: Protein | Mass: 14675.771 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Saccharomyces cerevisiae (brewer's yeast) / Strain: SUB413 / References: UniProt: P39516 |
#60: Protein | Mass: 15877.490 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Saccharomyces cerevisiae (brewer's yeast) / Strain: SUB413 / References: UniProt: P0CX51 |
#61: Protein | Mass: 15835.384 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Saccharomyces cerevisiae (brewer's yeast) / Strain: SUB413 / References: UniProt: P14127 |
#62: Protein | Mass: 17071.641 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Saccharomyces cerevisiae (brewer's yeast) / Strain: SUB413 / References: UniProt: P0CX55 |
#63: Protein | Mass: 15942.125 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Saccharomyces cerevisiae (brewer's yeast) / Strain: SUB413 / References: UniProt: P07280 |
#65: Protein | Mass: 9758.829 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Saccharomyces cerevisiae (brewer's yeast) / Strain: SUB413 / References: UniProt: P0C0V8 |
#67: Protein | Mass: 16073.896 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Saccharomyces cerevisiae (brewer's yeast) / Strain: SUB413 / References: UniProt: P0CX29 |
#68: Protein | Mass: 15362.848 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Saccharomyces cerevisiae (brewer's yeast) / Strain: SUB413 / References: UniProt: P0CX31 |
#71: Protein | Mass: 8893.391 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Saccharomyces cerevisiae (brewer's yeast) / Strain: SUB413 / References: UniProt: P35997 |
-RNA chain , 5 types, 6 molecules 1342AXAZ
#28: RNA chain | Mass: 1097148.625 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Saccharomyces cerevisiae (brewer's yeast) / Strain: SUB413 / References: GenBank: 380294104 |
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#29: RNA chain | Mass: 38951.105 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Saccharomyces cerevisiae (brewer's yeast) / Strain: SUB413 / References: GenBank: 176405 |
#30: RNA chain | Mass: 50682.922 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Saccharomyces cerevisiae (brewer's yeast) / Strain: SUB413 / References: GenBank: 1267176496 |
#46: RNA chain | Mass: 579761.938 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Saccharomyces cerevisiae (brewer's yeast) / Strain: SUB413 / References: GenBank: 1262303 |
#75: RNA chain | Mass: 24518.570 Da / Num. of mol.: 2 / Source method: isolated from a natural source / Source: (natural) Saccharomyces cerevisiae (brewer's yeast) / Strain: SUB413 / References: GenBank: 176419 |
-Protein/peptide / Non-polymers , 2 types, 7 molecules n
#43: Protein/peptide | Mass: 3354.243 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Saccharomyces cerevisiae (brewer's yeast) / Strain: SUB413 / References: UniProt: A0A6A5PXU0 |
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#76: Chemical | ChemComp-ZN / |
-Details
Has ligand of interest | Y |
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Has protein modification | Y |
-Experimental details
-Experiment
Experiment | Method: ELECTRON MICROSCOPY |
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EM experiment | Aggregation state: PARTICLE / 3D reconstruction method: single particle reconstruction |
-Sample preparation
Component | Name: K63 ubiquitinated Ribosome / Type: RIBOSOME Details: K63 ubiquitin modified yeast translocating ribosome under oxidative stress Entity ID: #1-#75 / Source: NATURAL |
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Molecular weight | Experimental value: NO |
Source (natural) | Organism: Saccharomyces cerevisiae (brewer's yeast) / Strain: SUB413 |
Buffer solution | pH: 7.5 |
Specimen | Embedding applied: NO / Shadowing applied: NO / Staining applied: NO / Vitrification applied: YES |
Specimen support | Grid material: COPPER / Grid type: Quantifoil R2/1 |
Vitrification | Cryogen name: ETHANE |
-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: FLOOD BEAM |
Electron lens | Mode: BRIGHT FIELD |
Specimen holder | Cryogen: NITROGEN / Specimen holder model: FEI TITAN KRIOS AUTOGRID HOLDER |
Image recording | Electron dose: 25 e/Å2 / Detector mode: INTEGRATING / Film or detector model: FEI FALCON II (4k x 4k) / Num. of real images: 5243 |
Image scans | Movie frames/image: 7 / Used frames/image: 1-7 |
-Processing
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EM software |
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CTF correction | Type: PHASE FLIPPING AND AMPLITUDE CORRECTION | ||||||||||||||||||||||||
Symmetry | Point symmetry: C1 (asymmetric) | ||||||||||||||||||||||||
3D reconstruction | Resolution: 3.2 Å / Resolution method: FSC 0.143 CUT-OFF / Num. of particles: 87939 / Algorithm: FOURIER SPACE / Num. of class averages: 1 / Symmetry type: POINT | ||||||||||||||||||||||||
Atomic model building | Protocol: FLEXIBLE FIT / Space: REAL / Target criteria: correlation coefficient | ||||||||||||||||||||||||
Atomic model building | PDB-ID: 6GQ1 Accession code: 6GQ1 / Source name: PDB / Type: experimental model | ||||||||||||||||||||||||
Refinement | Cross valid method: NONE Stereochemistry target values: GeoStd + Monomer Library + CDL v1.2 | ||||||||||||||||||||||||
Displacement parameters | Biso mean: 157.13 Å2 | ||||||||||||||||||||||||
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