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Yorodumi- PDB-8q1y: Outward-facing, open2 proteoliposome complex I at 2.6 A, after de... -
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Open data
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Basic information
| Entry | Database: PDB / ID: 8q1y | |||||||||
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| Title | Outward-facing, open2 proteoliposome complex I at 2.6 A, after deactivation treatment. Initially purified in LMNG. | |||||||||
Components |
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Keywords | MEMBRANE PROTEIN / Complex I / Oxidoreductase / Proteoliposomes / Membrane-bound / metabolism | |||||||||
| Function / homology | Function and homology informationComplex I biogenesis / Mitochondrial protein import / RHOG GTPase cycle / ubiquinone biosynthetic process / Respiratory electron transport / cellular response to oxygen levels / mitochondrial large ribosomal subunit binding / gliogenesis / neural precursor cell proliferation / [2Fe-2S] cluster assembly ...Complex I biogenesis / Mitochondrial protein import / RHOG GTPase cycle / ubiquinone biosynthetic process / Respiratory electron transport / cellular response to oxygen levels / mitochondrial large ribosomal subunit binding / gliogenesis / neural precursor cell proliferation / [2Fe-2S] cluster assembly / oxygen sensor activity / Neutrophil degranulation / NADH dehydrogenase activity / Mitochondrial protein degradation / acyl binding / mitochondrial ATP synthesis coupled electron transport / ubiquinone binding / electron transport coupled proton transport / acyl carrier activity / NADH:ubiquinone reductase (H+-translocating) / mitochondrial respiratory chain complex I assembly / mitochondrial electron transport, NADH to ubiquinone / respiratory chain complex I / response to cAMP / NADH dehydrogenase (ubiquinone) activity / quinone binding / ATP synthesis coupled electron transport / neurogenesis / reactive oxygen species metabolic process / aerobic respiration / fatty acid binding / respiratory electron transport chain / electron transport chain / circadian rhythm / brain development / mitochondrial membrane / mitochondrial intermembrane space / 2 iron, 2 sulfur cluster binding / NAD binding / fatty acid biosynthetic process / FMN binding / 4 iron, 4 sulfur cluster binding / oxidoreductase activity / mitochondrial inner membrane / mitochondrial matrix / negative regulation of DNA-templated transcription / apoptotic process / protein-containing complex binding / mitochondrion / nucleoplasm / metal ion binding / cytoplasm Similarity search - Function | |||||||||
| Biological species | ![]() | |||||||||
| Method | ELECTRON MICROSCOPY / single particle reconstruction / cryo EM / Resolution: 2.6 Å | |||||||||
Authors | Grba, D.N. / Hirst, J. | |||||||||
| Funding support | United Kingdom, 2items
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Citation | Journal: Science / Year: 2024Title: Molecular mechanism of the ischemia-induced regulatory switch in mammalian complex I. Authors: Daniel N Grba / John J Wright / Zhan Yin / William Fisher / Judy Hirst / ![]() Abstract: Respiratory complex I is an efficient driver for oxidative phosphorylation in mammalian mitochondria, but its uncontrolled catalysis under challenging conditions leads to oxidative stress and ...Respiratory complex I is an efficient driver for oxidative phosphorylation in mammalian mitochondria, but its uncontrolled catalysis under challenging conditions leads to oxidative stress and cellular damage. Ischemic conditions switch complex I from rapid, reversible catalysis into a dormant state that protects upon reoxygenation, but the molecular basis for the switch is unknown. We combined precise biochemical definition of complex I catalysis with high-resolution cryo-electron microscopy structures in the phospholipid bilayer of coupled vesicles to reveal the mechanism of the transition into the dormant state, modulated by membrane interactions. By implementing a versatile membrane system to unite structure and function, attributing catalytic and regulatory properties to specific structural states, we define how a conformational switch in complex I controls its physiological roles. | |||||||||
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Structure visualization
| Structure viewer | Molecule: Molmil Jmol/JSmol |
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Downloads & links
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Download
| PDBx/mmCIF format | 8q1y.cif.gz | 1.5 MB | Display | PDBx/mmCIF format |
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| PDB format | pdb8q1y.ent.gz | 1.2 MB | Display | PDB format |
| PDBx/mmJSON format | 8q1y.json.gz | Tree view | PDBx/mmJSON format | |
| Others | Other downloads |
-Validation report
| Summary document | 8q1y_validation.pdf.gz | 3.9 MB | Display | wwPDB validaton report |
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| Full document | 8q1y_full_validation.pdf.gz | 4 MB | Display | |
| Data in XML | 8q1y_validation.xml.gz | 241.5 KB | Display | |
| Data in CIF | 8q1y_validation.cif.gz | 343.8 KB | Display | |
| Arichive directory | https://data.pdbj.org/pub/pdb/validation_reports/q1/8q1y ftp://data.pdbj.org/pub/pdb/validation_reports/q1/8q1y | HTTPS FTP |
-Related structure data
| Related structure data | ![]() 18068MC ![]() 8q0aC ![]() 8q0fC ![]() 8q0jC ![]() 8q0mC ![]() 8q0oC ![]() 8q0qC ![]() 8q1pC ![]() 8q1uC ![]() 8q25C ![]() 8q45C ![]() 8q46C ![]() 8q47C ![]() 8q48C ![]() 8q49C ![]() 8q4aC C: citing same article ( M: map data used to model this data |
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| Similar structure data | Similarity search - Function & homology F&H Search |
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Links
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Assembly
| Deposited unit | ![]()
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| 1 |
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Components
-NADH-ubiquinone oxidoreductase chain ... , 7 types, 7 molecules AHJKLMN
| #1: Protein | Mass: 13086.531 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) ![]() References: UniProt: Q7JAS9, NADH:ubiquinone reductase (H+-translocating) |
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| #8: Protein | Mass: 35716.785 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) ![]() |
| #10: Protein | Mass: 19110.488 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) ![]() References: UniProt: P03924, NADH:ubiquinone reductase (H+-translocating) |
| #11: Protein | Mass: 10828.195 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) ![]() References: UniProt: P03902, NADH:ubiquinone reductase (H+-translocating) |
| #12: Protein | Mass: 68355.930 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) ![]() References: UniProt: P03920, NADH:ubiquinone reductase (H+-translocating) |
| #13: Protein | Mass: 52158.758 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) ![]() References: UniProt: P03910, NADH:ubiquinone reductase (H+-translocating) |
| #14: Protein | Mass: 39302.941 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) ![]() References: UniProt: P03892, NADH:ubiquinone reductase (H+-translocating) |
-NADH dehydrogenase [ubiquinone] iron-sulfur protein ... , 7 types, 7 molecules BCDIQRe
| #2: Protein | Mass: 23802.926 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) ![]() References: UniProt: P42026, NADH:ubiquinone reductase (H+-translocating) |
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| #3: Protein | Mass: 30323.445 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) ![]() References: UniProt: P23709, NADH:ubiquinone reductase (H+-translocating) |
| #4: Protein | Mass: 52678.547 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) ![]() References: UniProt: P17694, NADH:ubiquinone reductase (H+-translocating) |
| #9: Protein | Mass: 23926.400 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) ![]() References: UniProt: P42028, NADH:ubiquinone reductase (H+-translocating) |
| #17: Protein | Mass: 19841.555 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) ![]() |
| #18: Protein | Mass: 13433.194 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) ![]() |
| #30: Protein | Mass: 12694.671 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) ![]() |
-NADH dehydrogenase [ubiquinone] flavoprotein ... , 3 types, 3 molecules EFs
| #5: Protein | Mass: 27341.496 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) ![]() References: UniProt: P04394, NADH:ubiquinone reductase (H+-translocating), NADH dehydrogenase |
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| #6: Protein | Mass: 50718.777 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) ![]() References: UniProt: P25708, NADH:ubiquinone reductase (H+-translocating), NADH dehydrogenase |
| #44: Protein | Mass: 11874.492 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) ![]() |
-Protein , 2 types, 3 molecules GTU
| #7: Protein | Mass: 79532.219 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) ![]() References: UniProt: P15690, NADH:ubiquinone reductase (H+-translocating) |
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| #20: Protein | Mass: 17421.340 Da / Num. of mol.: 2 / Source method: isolated from a natural source / Source: (natural) ![]() |
-NADH dehydrogenase [ubiquinone] 1 alpha subcomplex subunit ... , 12 types, 12 molecules OPSVWXYZabqr
| #15: Protein | Mass: 39330.984 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) ![]() |
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| #16: Protein | Mass: 42913.430 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) ![]() |
| #19: Protein | Mass: 11097.824 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) ![]() |
| #21: Protein | Mass: 13334.608 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) ![]() |
| #22: Protein | Mass: 15083.544 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) ![]() |
| #23: Protein | Mass: 20124.133 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) ![]() |
| #24: Protein | Mass: 14814.058 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) ![]() |
| #25: Protein | Mass: 16694.395 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) ![]() |
| #26: Protein | Mass: 8117.445 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) ![]() |
| #27: Protein | Mass: 9399.887 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) ![]() |
| #42: Protein | Mass: 17157.547 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) ![]() |
| #43: Protein | Mass: 12737.620 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) ![]() |
-NADH dehydrogenase [ubiquinone] 1 subunit ... , 2 types, 2 molecules cd
| #28: Protein | Mass: 8796.211 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) ![]() |
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| #29: Protein | Mass: 14159.332 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) ![]() |
-NADH dehydrogenase [ubiquinone] 1 beta subcomplex subunit ... , 11 types, 11 molecules fghijklmnop
| #31: Protein | Mass: 6978.148 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) ![]() |
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| #32: Protein | Mass: 17594.945 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) ![]() |
| #33: Protein | Mass: 21624.135 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) ![]() |
| #34: Protein | Mass: 15592.122 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) ![]() |
| #35: Protein | Mass: 12298.858 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) ![]() |
| #36: Protein | Mass: 11160.705 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) ![]() |
| #37: Protein | Mass: 21678.459 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) ![]() |
| #38: Protein | Mass: 15248.297 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) ![]() |
| #39: Protein | Mass: 21827.889 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) ![]() |
| #40: Protein | Mass: 16428.846 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) ![]() |
| #41: Protein | Mass: 21000.900 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) ![]() |
-Non-polymers , 15 types, 81 molecules 




























| #45: Chemical | ChemComp-3PE / #46: Chemical | ChemComp-PC1 / #47: Chemical | ChemComp-SF4 / #48: Chemical | ChemComp-PLC / #49: Chemical | #50: Chemical | ChemComp-FMN / | #51: Chemical | ChemComp-K / | #52: Chemical | #53: Chemical | ChemComp-CDL / #54: Chemical | ChemComp-DGT / | #55: Chemical | ChemComp-MG / | #56: Chemical | ChemComp-NDP / | #57: Chemical | #58: Chemical | ChemComp-CHD / | #59: Chemical | ChemComp-MYR / | |
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-Details
| Has ligand of interest | N |
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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: Complex I from Bos taurus reconstituted into proteoliposome and then deactivated with heat treatment. Type: COMPLEX Details: Complex I from Bos taurus, purified as prepared in LMNG, and reconstituted into proteoliposomes. Entity ID: #1-#44 / Source: NATURAL | |||||||||||||||
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| Molecular weight | Value: 1.09 MDa / Experimental value: NO | |||||||||||||||
| Source (natural) | Organism: ![]() | |||||||||||||||
| Buffer solution | pH: 7.5 | |||||||||||||||
| Buffer component |
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| Specimen | Conc.: 0.2 mg/ml / Embedding applied: NO / Shadowing applied: NO / Staining applied: NO / Vitrification applied: YES Details: Complex I proteoliposomes on a graphene-oxide coated gold grid with even liposome distribution. Sample was deactivated with heat treatment prior to freezing. | |||||||||||||||
| Specimen support | Grid material: GOLD / Grid type: UltrAuFoil | |||||||||||||||
| Vitrification | Instrument: FEI VITROBOT MARK III / Cryogen name: ETHANE / Humidity: 95 % / Chamber temperature: 277 K Details: Sample was incubated on grid for 30 s before plunge freezing |
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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 magnification: 81000 X / Nominal defocus max: 2300 nm / Nominal defocus min: 900 nm / Cs: 2.7 mm / C2 aperture diameter: 50 µm | |||||||||||||||
| Specimen holder | Cryogen: NITROGEN / Specimen holder model: FEI TITAN KRIOS AUTOGRID HOLDER | |||||||||||||||
| Image recording | Imaging-ID: 1 / Average exposure time: 3.8 sec. / Electron dose: 40 e/Å2 / Film or detector model: GATAN K3 BIOQUANTUM (6k x 4k) / Num. of grids imaged: 1
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| EM imaging optics | Energyfilter name: GIF Bioquantum / Energyfilter slit width: 20 eV | |||||||||||||||
| Image scans |
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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: 2.6 Å / Resolution method: FSC 0.143 CUT-OFF / Num. of particles: 93255 / Symmetry type: POINT | ||||||||||||||||||||||||||||||||||||||||
| Atomic model building | Protocol: OTHER / Space: REAL | ||||||||||||||||||||||||||||||||||||||||
| Atomic model building | PDB-ID: 7QSN Accession code: 7QSN / Source name: PDB / Type: experimental model | ||||||||||||||||||||||||||||||||||||||||
| Refinement | Cross valid method: NONE Stereochemistry target values: GeoStd + Monomer Library + CDL v1.2 | ||||||||||||||||||||||||||||||||||||||||
| Displacement parameters | Biso mean: 47.78 Å2 | ||||||||||||||||||||||||||||||||||||||||
| Refine LS restraints |
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About Yorodumi





United Kingdom, 2items
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FIELD EMISSION GUN
