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- PDB-6ef0: Yeast 26S proteasome bound to ubiquitinated substrate (1D* motor ... -
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Open data
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Basic information
Entry | Database: PDB / ID: 6ef0 | |||||||||
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Title | Yeast 26S proteasome bound to ubiquitinated substrate (1D* motor state) | |||||||||
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![]() | MOTOR PROTEIN / 26S Proteasome / ATPase / AAA+ / Protease / Ubiquitin | |||||||||
Function / homology | ![]() proteasome regulatory particle assembly / mitotic cell cycle phase transition / cytosolic proteasome complex / protein-containing complex localization / proteasome-activating activity / proteasome regulatory particle, base subcomplex / nonfunctional rRNA decay / cyclin-dependent protein serine/threonine kinase regulator activity / spindle pole body / proteasome core complex assembly ...proteasome regulatory particle assembly / mitotic cell cycle phase transition / cytosolic proteasome complex / protein-containing complex localization / proteasome-activating activity / proteasome regulatory particle, base subcomplex / nonfunctional rRNA decay / cyclin-dependent protein serine/threonine kinase regulator activity / spindle pole body / proteasome core complex assembly / nuclear outer membrane-endoplasmic reticulum membrane network / Cross-presentation of soluble exogenous antigens (endosomes) / TNFR2 non-canonical NF-kB pathway / proteasomal ubiquitin-independent protein catabolic process / Ubiquitin Mediated Degradation of Phosphorylated Cdc25A / Regulation of PTEN stability and activity / KEAP1-NFE2L2 pathway / peptide catabolic process / CDK-mediated phosphorylation and removal of Cdc6 / Neddylation / FBXL7 down-regulates AURKA during mitotic entry and in early mitosis / Orc1 removal from chromatin / MAPK6/MAPK4 signaling / cyclin-dependent protein kinase holoenzyme complex / proteasome storage granule / Antigen processing: Ubiquitination & Proteasome degradation / positive regulation of RNA polymerase II transcription preinitiation complex assembly / proteasome core complex, alpha-subunit complex / Ub-specific processing proteases / positive regulation of transcription elongation by RNA polymerase II / ERAD pathway / Neutrophil degranulation / proteasome complex / nucleotide-excision repair / positive regulation of protein catabolic process / ubiquitin-dependent protein catabolic process / proteasome-mediated ubiquitin-dependent protein catabolic process / chromatin remodeling / protein domain specific binding / cell division / mRNA binding / ubiquitin protein ligase binding / 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: 4.43 Å | |||||||||
![]() | de la Pena, A.H. / Goodall, E.A. / Gates, S.N. / Lander, G.C. / Martin, A. | |||||||||
Funding support | ![]()
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![]() | ![]() Title: Substrate-engaged 26 proteasome structures reveal mechanisms for ATP-hydrolysis-driven translocation. Authors: Andres H de la Peña / Ellen A Goodall / Stephanie N Gates / Gabriel C Lander / Andreas Martin / ![]() Abstract: The 26 proteasome is the primary eukaryotic degradation machine and thus is critically involved in numerous cellular processes. The heterohexameric adenosine triphosphatase (ATPase) motor of the ...The 26 proteasome is the primary eukaryotic degradation machine and thus is critically involved in numerous cellular processes. The heterohexameric adenosine triphosphatase (ATPase) motor of the proteasome unfolds and translocates targeted protein substrates into the open gate of a proteolytic core while a proteasomal deubiquitinase concomitantly removes substrate-attached ubiquitin chains. However, the mechanisms by which ATP hydrolysis drives the conformational changes responsible for these processes have remained elusive. Here we present the cryo-electron microscopy structures of four distinct conformational states of the actively ATP-hydrolyzing, substrate-engaged 26 proteasome. These structures reveal how mechanical substrate translocation accelerates deubiquitination and how ATP-binding, -hydrolysis, and phosphate-release events are coordinated within the AAA+ (ATPases associated with diverse cellular activities) motor to induce conformational changes and propel the substrate through the central pore. | |||||||||
History |
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Structure visualization
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Structure viewer | Molecule: ![]() ![]() |
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Downloads & links
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Download
PDBx/mmCIF format | ![]() | 571 KB | Display | ![]() |
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PDB format | ![]() | 451.7 KB | Display | ![]() |
PDBx/mmJSON format | ![]() | Tree view | ![]() | |
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-Validation report
Arichive directory | ![]() ![]() | HTTPS FTP |
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-Related structure data
Related structure data | ![]() 9042MC ![]() 9043C ![]() 9044C ![]() 9045C ![]() 6ef1C ![]() 6ef2C ![]() 6ef3C 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, 6 molecules ABCDEF
#1: Protein | Mass: 26801.549 Da / Num. of mol.: 1 Source method: isolated from a genetically manipulated source Source: (gene. exp.) ![]() ![]() Strain: ATCC 204508 / S288c / Gene: SCL1, PRC2, PRS2, YGL011C / Production host: ![]() ![]() References: UniProt: P21243, proteasome endopeptidase complex |
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#2: Protein | Mass: 27191.828 Da / Num. of mol.: 1 Source method: isolated from a genetically manipulated source Source: (gene. exp.) ![]() ![]() Strain: ATCC 204508 / S288c / Gene: PRE8, PRS4, YML092C / Production host: ![]() ![]() References: UniProt: P23639, proteasome endopeptidase complex |
#3: Protein | Mass: 27080.506 Da / Num. of mol.: 1 Source method: isolated from a genetically manipulated source Source: (gene. exp.) ![]() ![]() Strain: ATCC 204508 / S288c / Gene: PRE9, PRS5, YGR135W / Production host: ![]() ![]() References: UniProt: P23638, proteasome endopeptidase complex |
#4: Protein | Mass: 26993.475 Da / Num. of mol.: 1 Source method: isolated from a genetically manipulated source Source: (gene. exp.) ![]() ![]() Strain: ATCC 204508 / S288c / Gene: PRE6, YOL038W / Production host: ![]() ![]() References: UniProt: P40303, proteasome endopeptidase complex |
#5: Protein | Mass: 27444.869 Da / Num. of mol.: 1 Source method: isolated from a genetically manipulated source Source: (gene. exp.) ![]() ![]() Strain: ATCC 204508 / S288c / Gene: PUP2, DOA5, YGR253C, G9155 / Production host: ![]() ![]() References: UniProt: P32379, proteasome endopeptidase complex |
#6: Protein | Mass: 25634.000 Da / Num. of mol.: 1 Source method: isolated from a genetically manipulated source Source: (gene. exp.) ![]() ![]() Strain: ATCC 204508 / S288c / Gene: PRE5, YMR314W, YM9924.06 / Production host: ![]() ![]() References: UniProt: P40302, proteasome endopeptidase complex |
-Protein , 2 types, 2 molecules GL
#7: Protein | Mass: 27092.719 Da / Num. of mol.: 1 Source method: isolated from a genetically manipulated source Source: (gene. exp.) ![]() ![]() Strain: ATCC 204508 / S288c / Gene: PRE10, PRC1, PRS1, YOR362C, O6650 / Production host: ![]() ![]() References: UniProt: P21242, proteasome endopeptidase complex |
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#12: Protein | Mass: 30386.865 Da / Num. of mol.: 1 Source method: isolated from a genetically manipulated source Source: (gene. exp.) ![]() ![]() Strain: ATCC 204508 / S288c / Gene: RPT4, CRL13, PCS1, SUG2, YOR259C / Production host: ![]() ![]() |
-26S proteasome regulatory subunit ... , 5 types, 5 molecules HIJKM
#8: Protein | Mass: 28597.023 Da / Num. of mol.: 1 Source method: isolated from a genetically manipulated source Source: (gene. exp.) ![]() ![]() Strain: ATCC 204508 / S288c / Gene: RPT1, CIM5, YTA3, YKL145W / Production host: ![]() ![]() |
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#9: Protein | Mass: 30109.572 Da / Num. of mol.: 1 Source method: isolated from a genetically manipulated source Source: (gene. exp.) ![]() ![]() Strain: ATCC 204508 / S288c / Gene: RPT2, YHS4, YTA5, YDL007W, D2920 / Production host: ![]() ![]() |
#10: Protein | Mass: 30522.594 Da / Num. of mol.: 1 Source method: isolated from a genetically manipulated source Source: (gene. exp.) ![]() ![]() Strain: ATCC 204508 / S288c / Gene: RPT6, CIM3, CRL3, SUG1, TBPY, TBY1, YGL048C / Production host: ![]() ![]() |
#11: Protein | Mass: 30387.693 Da / Num. of mol.: 1 Source method: isolated from a genetically manipulated source Source: (gene. exp.) ![]() ![]() Strain: ATCC 204508 / S288c / Gene: RPT3, YNT1, YTA2, YDR394W, D9509.14 / Production host: ![]() ![]() |
#13: Protein | Mass: 28497.504 Da / Num. of mol.: 1 Source method: isolated from a genetically manipulated source Source: (gene. exp.) ![]() ![]() Strain: ATCC 204508 / S288c / Gene: RPT5, YTA1, YOR117W, O3258, YOR3258W / Production host: ![]() ![]() |
-Protein/peptide , 1 types, 1 molecules s
#14: Protein/peptide | Mass: 1130.277 Da / Num. of mol.: 1 Source method: isolated from a genetically manipulated source Source: (gene. exp.) ![]() ![]() ![]() |
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-Non-polymers , 2 types, 6 molecules ![](data/chem/img/ADP.gif)
![](data/chem/img/ATP.gif)
![](data/chem/img/ATP.gif)
#15: Chemical | #16: Chemical | |
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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
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Buffer solution | pH: 7.6 | ||||||||||||||||||||||||||||||||||||
Buffer component |
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Specimen | Conc.: 25 mg/ml / Embedding applied: NO / Shadowing applied: NO / Staining applied: NO / Vitrification applied: YES Details: 26S proteasomes were diluted to a concentration of 20 micromolar in a buffer with an ATP regeneration system, and 6 mM ortho-phenanthroline. This solution was mixed with an equal volume of ...Details: 26S proteasomes were diluted to a concentration of 20 micromolar in a buffer with an ATP regeneration system, and 6 mM ortho-phenanthroline. This solution was mixed with an equal volume of 50 micromolar ubiquitinated model substrate | ||||||||||||||||||||||||||||||||||||
Specimen support | Grid material: COPPER / Grid mesh size: 400 divisions/in. / Grid type: Quantifoil R2/2 | ||||||||||||||||||||||||||||||||||||
Vitrification | Instrument: HOMEMADE PLUNGER / Cryogen name: ETHANE / Humidity: 90 % / Chamber temperature: 277 K Details: specimens were manually blotted with Whatman #1 filter paper |
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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 / Details: images were acquired in nanoprobe mode |
Electron gun | Electron source: ![]() |
Electron lens | Mode: BRIGHT FIELD / Nominal magnification: 29000 X / Nominal defocus max: -2500 nm / Nominal defocus min: -1000 nm / Calibrated defocus min: -1500 nm / Calibrated defocus max: -3000 nm / Cs: 2.7 mm / C2 aperture diameter: 70 µm / Alignment procedure: COMA FREE |
Specimen holder | Cryogen: NITROGEN / Specimen holder model: FEI TITAN KRIOS AUTOGRID HOLDER |
Image recording | Average exposure time: 6.25 sec. / Electron dose: 50 e/Å2 / Detector mode: COUNTING / Film or detector model: GATAN K2 SUMMIT (4k x 4k) / Num. of grids imaged: 1 / Num. of real images: 11656 |
Image scans | Sampling size: 5 µm / Width: 3710 / Height: 3838 / Movie frames/image: 25 / Used frames/image: 1-25 |
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Processing
Software | Name: PHENIX / Version: 1.11.1_2580: / Classification: refinement | ||||||||||||||||||||||||||||||||||||||||||||||||
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EM software |
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Image processing | Details: Camera was operated in counting mode | ||||||||||||||||||||||||||||||||||||||||||||||||
CTF correction | Details: CTF correction was performed by Relion during reconstruction Type: PHASE FLIPPING AND AMPLITUDE CORRECTION | ||||||||||||||||||||||||||||||||||||||||||||||||
Particle selection | Num. of particles selected: 579361 Details: Particles were selected using the Relion template-based particle picker | ||||||||||||||||||||||||||||||||||||||||||||||||
Symmetry | Point symmetry: C1 (asymmetric) | ||||||||||||||||||||||||||||||||||||||||||||||||
3D reconstruction | Resolution: 4.43 Å / Resolution method: FSC 0.143 CUT-OFF / Num. of particles: 34701 / Algorithm: BACK PROJECTION / Symmetry type: POINT | ||||||||||||||||||||||||||||||||||||||||||||||||
Atomic model building | Protocol: RIGID BODY FIT / Space: REAL | ||||||||||||||||||||||||||||||||||||||||||||||||
Atomic model building | PDB-ID: 5MPC Accession code: 5MPC / Source name: PDB / Type: experimental model | ||||||||||||||||||||||||||||||||||||||||||||||||
Refine LS restraints |
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