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Open data
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Basic information
| Entry | Database: PDB / ID: 5mpa | ||||||||||||
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| Title | 26S proteasome in presence of ATP (s2) | ||||||||||||
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Keywords | HYDROLASE / Macromolecular complex / 26S proteasome / Protease | ||||||||||||
| Function / homology | Function and homology informationproteasome regulatory particle assembly / protein-containing complex localization / proteasome-activating activity / proteasome regulatory particle, base subcomplex / proteasome core complex assembly / nuclear outer membrane-endoplasmic reticulum membrane network / Proteasome assembly / Cross-presentation of soluble exogenous antigens (endosomes) / TNFR2 non-canonical NF-kB pathway / nonfunctional rRNA decay ...proteasome regulatory particle assembly / protein-containing complex localization / proteasome-activating activity / proteasome regulatory particle, base subcomplex / proteasome core complex assembly / nuclear outer membrane-endoplasmic reticulum membrane network / Proteasome assembly / Cross-presentation of soluble exogenous antigens (endosomes) / TNFR2 non-canonical NF-kB pathway / nonfunctional rRNA decay / Ubiquitin-Mediated Degradation of Phosphorylated Cdc25A / proteasomal ubiquitin-independent protein catabolic process / Regulation of PTEN stability and activity / CDK-mediated phosphorylation and removal of Cdc6 / FBXL7 down-regulates AURKA during mitotic entry and in early mitosis / peptide catabolic process / KEAP1-NFE2L2 pathway / Neddylation / Orc1 removal from chromatin / MAPK6/MAPK4 signaling / proteasome storage granule / Antigen processing: Ubiquitination & Proteasome degradation / positive regulation of RNA polymerase II transcription preinitiation complex assembly / proteasome endopeptidase complex / endopeptidase activator activity / proteasome core complex, beta-subunit complex / Ub-specific processing proteases / proteasome assembly / threonine-type endopeptidase activity / proteasome core complex, alpha-subunit complex / ERAD pathway / Neutrophil degranulation / proteasome complex / nucleotide-excision repair / positive regulation of transcription elongation by RNA polymerase II / positive regulation of protein catabolic process / peroxisome / ubiquitin-dependent protein catabolic process / endopeptidase activity / proteasome-mediated ubiquitin-dependent protein catabolic process / chromatin remodeling / protein domain specific binding / mRNA binding / ubiquitin protein ligase binding / endoplasmic reticulum membrane / ATP hydrolysis activity / mitochondrion / ATP binding / identical protein binding / nucleus / cytoplasm / cytosol Similarity search - Function | ||||||||||||
| Biological species | ![]() | ||||||||||||
| Method | ELECTRON MICROSCOPY / single particle reconstruction / cryo EM / Resolution: 4.5 Å | ||||||||||||
Authors | Wehmer, M. / Rudack, T. / Beck, F. / Aufderheide, A. / Pfeifer, G. / Plitzko, J.M. / Foerster, F. / Schulten, K. / Baumeister, W. / Sakata, E. | ||||||||||||
| Funding support | Germany, United States, 3items
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Citation | Journal: Proc Natl Acad Sci U S A / Year: 2017Title: Structural insights into the functional cycle of the ATPase module of the 26S proteasome. Authors: Marc Wehmer / Till Rudack / Florian Beck / Antje Aufderheide / Günter Pfeifer / Jürgen M Plitzko / Friedrich Förster / Klaus Schulten / Wolfgang Baumeister / Eri Sakata / ![]() Abstract: In eukaryotic cells, the ubiquitin-proteasome system (UPS) is responsible for the regulated degradation of intracellular proteins. The 26S holocomplex comprises the core particle (CP), where ...In eukaryotic cells, the ubiquitin-proteasome system (UPS) is responsible for the regulated degradation of intracellular proteins. The 26S holocomplex comprises the core particle (CP), where proteolysis takes place, and one or two regulatory particles (RPs). The base of the RP is formed by a heterohexameric AAA ATPase module, which unfolds and translocates substrates into the CP. Applying single-particle cryo-electron microscopy (cryo-EM) and image classification to samples in the presence of different nucleotides and nucleotide analogs, we were able to observe four distinct conformational states (s1 to s4). The resolution of the four conformers allowed for the construction of atomic models of the AAA ATPase module as it progresses through the functional cycle. In a hitherto unobserved state (s4), the gate controlling access to the CP is open. The structures described in this study allow us to put forward a model for the 26S functional cycle driven by ATP hydrolysis. | ||||||||||||
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Structure visualization
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| Structure viewer | Molecule: Molmil Jmol/JSmol |
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Downloads & links
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Download
| PDBx/mmCIF format | 5mpa.cif.gz | 1.4 MB | Display | PDBx/mmCIF format |
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| PDB format | pdb5mpa.ent.gz | 1.1 MB | Display | PDB format |
| PDBx/mmJSON format | 5mpa.json.gz | Tree view | PDBx/mmJSON format | |
| Others | Other downloads |
-Validation report
| Summary document | 5mpa_validation.pdf.gz | 1.5 MB | Display | wwPDB validaton report |
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| Full document | 5mpa_full_validation.pdf.gz | 1.7 MB | Display | |
| Data in XML | 5mpa_validation.xml.gz | 215.3 KB | Display | |
| Data in CIF | 5mpa_validation.cif.gz | 335.4 KB | Display | |
| Arichive directory | https://data.pdbj.org/pub/pdb/validation_reports/mp/5mpa ftp://data.pdbj.org/pub/pdb/validation_reports/mp/5mpa | HTTPS FTP |
-Related structure data
| Related structure data | ![]() 3535MC ![]() 3534C ![]() 3536C ![]() 3537C ![]() 5mp9C ![]() 5mpbC ![]() 5mpcC ![]() 5mpdC ![]() 5mpeC M: map data used to model this data C: citing same article ( |
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| Similar structure data |
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Links
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Assembly
| Deposited unit | ![]()
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Components
-Proteasome subunit alpha type- ... , 6 types, 12 molecules aAbBcCdDeEfF
| #1: Protein | Mass: 28033.830 Da / Num. of mol.: 2 / Source method: isolated from a natural source Source: (natural) ![]() References: UniProt: P21243, proteasome endopeptidase complex #2: Protein | Mass: 27191.828 Da / Num. of mol.: 2 / Source method: isolated from a natural source Source: (natural) ![]() References: UniProt: P23639, proteasome endopeptidase complex #3: Protein | Mass: 28748.230 Da / Num. of mol.: 2 / Source method: isolated from a natural source Source: (natural) ![]() References: UniProt: P23638, proteasome endopeptidase complex #4: Protein | Mass: 28478.111 Da / Num. of mol.: 2 / Source method: isolated from a natural source Source: (natural) ![]() References: UniProt: P40303, proteasome endopeptidase complex #5: Protein | Mass: 28649.086 Da / Num. of mol.: 2 / Source method: isolated from a natural source Source: (natural) ![]() References: UniProt: P32379, proteasome endopeptidase complex #6: Protein | Mass: 25634.000 Da / Num. of mol.: 2 / Source method: isolated from a natural source Source: (natural) ![]() References: UniProt: P40302, proteasome endopeptidase complex |
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-Protein , 2 types, 3 molecules gGL
| #7: Protein | Mass: 31575.068 Da / Num. of mol.: 2 / Source method: isolated from a natural source Source: (natural) ![]() References: UniProt: P21242, proteasome endopeptidase complex #18: Protein | | Mass: 49480.137 Da / Num. of mol.: 1 / Source method: isolated from a natural source Source: (natural) ![]() References: UniProt: P53549 |
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-Proteasome subunit beta type- ... , 7 types, 14 molecules h1i2j3k4l5m6n7
| #8: Protein | Mass: 23573.604 Da / Num. of mol.: 2 / Source method: isolated from a natural source Source: (natural) ![]() References: UniProt: P38624, proteasome endopeptidase complex #9: Protein | Mass: 28299.889 Da / Num. of mol.: 2 / Source method: isolated from a natural source Source: (natural) ![]() References: UniProt: P25043, proteasome endopeptidase complex #10: Protein | Mass: 22627.842 Da / Num. of mol.: 2 / Source method: isolated from a natural source Source: (natural) ![]() References: UniProt: P25451, proteasome endopeptidase complex #11: Protein | Mass: 22545.676 Da / Num. of mol.: 2 / Source method: isolated from a natural source Source: (natural) ![]() References: UniProt: P22141, proteasome endopeptidase complex #12: Protein | Mass: 31670.539 Da / Num. of mol.: 2 / Source method: isolated from a natural source Source: (natural) ![]() References: UniProt: P30656, proteasome endopeptidase complex #13: Protein | Mass: 26905.076 Da / Num. of mol.: 2 / Source method: isolated from a natural source Source: (natural) ![]() References: UniProt: P23724, proteasome endopeptidase complex #14: Protein | Mass: 29471.289 Da / Num. of mol.: 2 / Source method: isolated from a natural source Source: (natural) ![]() References: UniProt: P30657, proteasome endopeptidase complex |
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-26S protease regulatory subunit ... , 5 types, 5 molecules HIKMJ
| #15: Protein | Mass: 52054.891 Da / Num. of mol.: 1 / Source method: isolated from a natural source Source: (natural) ![]() References: UniProt: P33299 |
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| #16: Protein | Mass: 48898.160 Da / Num. of mol.: 1 / Source method: isolated from a natural source Source: (natural) ![]() References: UniProt: P40327 |
| #17: Protein | Mass: 47953.676 Da / Num. of mol.: 1 / Source method: isolated from a natural source Source: (natural) ![]() References: UniProt: P33298 |
| #19: Protein | Mass: 48315.727 Da / Num. of mol.: 1 / Source method: isolated from a natural source Source: (natural) ![]() References: UniProt: P33297 |
| #20: Protein | Mass: 45342.742 Da / Num. of mol.: 1 / Source method: isolated from a natural source Source: (natural) ![]() References: UniProt: Q01939 |
-Non-polymers , 3 types, 12 molecules 




| #21: Chemical | ChemComp-MG / #22: Chemical | ChemComp-ATP / #23: Chemical | ChemComp-ADP / | |
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-Experimental details
-Experiment
| Experiment | Method: ELECTRON MICROSCOPY |
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| EM experiment | Aggregation state: PARTICLE / 3D reconstruction method: single particle reconstruction |
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Sample preparation
| Component | Name: 26S proteasome of Saccharomyces cerevisiae in presence of ATP (s2) Type: COMPLEX / Entity ID: #1-#20 / Source: NATURAL |
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| Molecular weight | Value: 1.7 MDa / Experimental value: NO |
| Source (natural) | Organism: ![]() |
| Buffer solution | pH: 7.4 |
| Specimen | Conc.: 1 mg/ml / Embedding applied: NO / Shadowing applied: NO / Staining applied: NO / Vitrification applied: YES |
| Specimen support | Grid material: COPPER / Grid mesh size: 400 divisions/in. |
| Vitrification | Instrument: FEI VITROBOT MARK IV / Cryogen name: ETHANE-PROPANE / Humidity: 95 % / Chamber temperature: 277 K |
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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 / Nominal defocus max: 3500 nm / Nominal defocus min: 1500 nm |
| Specimen holder | Specimen holder model: FEI TITAN KRIOS AUTOGRID HOLDER |
| Image recording | Average exposure time: 10 sec. / Electron dose: 45 e/Å2 / Detector mode: SUPER-RESOLUTION / Film or detector model: GATAN K2 SUMMIT (4k x 4k) |
| Image scans | Movie frames/image: 20 |
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Processing
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| CTF correction | Type: PHASE FLIPPING AND AMPLITUDE CORRECTION | ||||||||||||||||||||||||||||||||||||
| Symmetry | Point symmetry: C1 (asymmetric) | ||||||||||||||||||||||||||||||||||||
| 3D reconstruction | Resolution: 4.5 Å / Resolution method: FSC 0.143 CUT-OFF / Num. of particles: 193337 / Symmetry type: POINT |
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