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Open data
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Basic information
| Entry | Database: PDB / ID: 7vbz | |||||||||
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| Title | Matrix arm of active state CI from Rotenone-NADH dataset | |||||||||
Components |
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Keywords | ELECTRON TRANSPORT / Respiratory / Complex | |||||||||
| Function / homology | Function and homology informationRHOG GTPase cycle / Complex I biogenesis / Respiratory electron transport / Mitochondrial protein degradation / mesenchymal stem cell proliferation / reproductive system development / mesenchymal stem cell differentiation / circulatory system development / cardiac muscle tissue development / oxidoreductase activity, acting on NAD(P)H ...RHOG GTPase cycle / Complex I biogenesis / Respiratory electron transport / Mitochondrial protein degradation / mesenchymal stem cell proliferation / reproductive system development / mesenchymal stem cell differentiation / circulatory system development / cardiac muscle tissue development / oxidoreductase activity, acting on NAD(P)H / stem cell division / NADH:ubiquinone reductase (H+-translocating) / mitochondrial respiratory chain complex I assembly / mitochondrial electron transport, NADH to ubiquinone / respiratory chain complex I / NADH dehydrogenase (ubiquinone) activity / quinone binding / ATP synthesis coupled electron transport / muscle contraction / reactive oxygen species metabolic process / regulation of mitochondrial membrane potential / respiratory electron transport chain / DNA damage response, signal transduction by p53 class mediator / kidney development / fatty acid metabolic process / electron transport chain / 2 iron, 2 sulfur cluster binding / multicellular organism growth / NAD binding / fatty acid biosynthetic process / cellular senescence / FMN binding / nervous system development / 4 iron, 4 sulfur cluster binding / gene expression / mitochondrial inner membrane / nuclear body / mitochondrion / metal ion binding / membrane Similarity search - Function | |||||||||
| Biological species | ![]() | |||||||||
| Method | ELECTRON MICROSCOPY / single particle reconstruction / cryo EM / Resolution: 2.4 Å | |||||||||
Authors | Gu, J.K. / Yang, M.J. | |||||||||
| Funding support | China, 2items
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Citation | Journal: Nat Struct Mol Biol / Year: 2022Title: The coupling mechanism of mammalian mitochondrial complex I. Authors: Jinke Gu / Tianya Liu / Runyu Guo / Laixing Zhang / Maojun Yang / ![]() Abstract: Mammalian respiratory complex I (CI) is a 45-subunit, redox-driven proton pump that generates an electrochemical gradient across the mitochondrial inner membrane to power ATP synthesis in ...Mammalian respiratory complex I (CI) is a 45-subunit, redox-driven proton pump that generates an electrochemical gradient across the mitochondrial inner membrane to power ATP synthesis in mitochondria. In the present study, we report cryo-electron microscopy structures of CI from Sus scrofa in six treatment conditions at a resolution of 2.4-3.5 Å, in which CI structures of each condition can be classified into two biochemical classes (active or deactive), with a notably higher proportion of active CI particles. These structures illuminate how hydrophobic ubiquinone-10 (Q10) with its long isoprenoid tail is bound and reduced in a narrow Q chamber comprising four different Q10-binding sites. Structural comparisons of active CI structures from our decylubiquinone-NADH and rotenone-NADH datasets reveal that Q10 reduction at site 1 is not coupled to proton pumping in the membrane arm, which might instead be coupled to Q10 oxidation at site 2. Our data overturn the widely accepted previous proposal about the coupling mechanism of CI. | |||||||||
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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 | 7vbz.cif.gz | 667.9 KB | Display | PDBx/mmCIF format |
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| PDB format | pdb7vbz.ent.gz | 544.6 KB | Display | PDB format |
| PDBx/mmJSON format | 7vbz.json.gz | Tree view | PDBx/mmJSON format | |
| Others | Other downloads |
-Validation report
| Summary document | 7vbz_validation.pdf.gz | 1.5 MB | Display | wwPDB validaton report |
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| Full document | 7vbz_full_validation.pdf.gz | 1.6 MB | Display | |
| Data in XML | 7vbz_validation.xml.gz | 104.9 KB | Display | |
| Data in CIF | 7vbz_validation.cif.gz | 158.9 KB | Display | |
| Arichive directory | https://data.pdbj.org/pub/pdb/validation_reports/vb/7vbz ftp://data.pdbj.org/pub/pdb/validation_reports/vb/7vbz | HTTPS FTP |
-Related structure data
| Related structure data | ![]() 31886MC ![]() 7v2cC ![]() 7v2dC ![]() 7v2eC ![]() 7v2fC ![]() 7v2hC ![]() 7v2kC ![]() 7v2rC ![]() 7v30C ![]() 7v31C ![]() 7v32C ![]() 7v33C ![]() 7v3mC ![]() 7vb7C ![]() 7vblC ![]() 7vbnC ![]() 7vbpC ![]() 7vc0C ![]() 7vwjC ![]() 7vwlC ![]() 7vxpC ![]() 7vxsC ![]() 7vxuC ![]() 7vy1C ![]() 7vy8C ![]() 7vy9C ![]() 7vyaC ![]() 7vyeC ![]() 7vyfC ![]() 7vygC ![]() 7vyhC ![]() 7vyiC ![]() 7vynC ![]() 7vysC ![]() 7vz1C ![]() 7vz8C ![]() 7vzvC ![]() 7vzwC ![]() 7w00C ![]() 7w0hC ![]() 7w0rC ![]() 7w0yC ![]() 7w1oC ![]() 7w1pC ![]() 7w1tC ![]() 7w1uC ![]() 7w1vC ![]() 7w1zC ![]() 7w20C ![]() 7w2kC ![]() 7w2lC ![]() 7w2rC ![]() 7w2uC ![]() 7w2yC ![]() 7w31C ![]() 7w32C ![]() 7w35C ![]() 7w4cC ![]() 7w4dC ![]() 7w4eC ![]() 7w4fC ![]() 7w4gC ![]() 7w4jC ![]() 7w4kC ![]() 7w4lC ![]() 7w4mC ![]() 7w4nC ![]() 7w4qC M: map data used to model this data C: citing same article ( |
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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 dehydrogenase [ubiquinone] flavoprotein ... , 3 types, 3 molecules AKO
| #1: Protein | Mass: 47434.066 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) ![]() References: UniProt: F1RVN1, NADH:ubiquinone reductase (H+-translocating) |
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| #10: Protein/peptide | Mass: 5193.683 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) ![]() |
| #14: Protein | Mass: 23826.336 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) ![]() |
-NADH dehydrogenase [ubiquinone] iron-sulfur protein ... , 6 types, 6 molecules BCLPQT
| #2: Protein | Mass: 20207.957 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) ![]() |
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| #3: Protein | Mass: 17874.953 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) ![]() |
| #11: Protein | Mass: 14442.389 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) ![]() |
| #15: Protein | Mass: 24521.730 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) ![]() |
| #16: Protein | Mass: 44127.691 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) ![]() |
| #17: Protein | Mass: 10567.635 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) ![]() |
-NADH dehydrogenase [ubiquinone] 1 alpha subcomplex subunit ... , 6 types, 6 molecules EFHINW
| #4: Protein | Mass: 13812.977 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) ![]() |
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| #5: Protein | Mass: 9841.280 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) ![]() |
| #7: Protein | Mass: 12949.106 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) ![]() |
| #8: Protein | Mass: 12517.394 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) ![]() |
| #13: Protein | Mass: 17031.244 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) ![]() |
| #18: Protein/peptide | Mass: 3204.705 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) ![]() |
-Protein , 3 types, 3 molecules GJM
| #6: Protein | Mass: 10133.566 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) ![]() |
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| #9: Protein | Mass: 38954.051 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) ![]() |
| #12: Protein | Mass: 75770.773 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) ![]() |
-Non-polymers , 14 types, 749 molecules 


























| #19: Chemical | ChemComp-SF4 / #20: Chemical | ChemComp-FMN / | #21: Chemical | ChemComp-NAI / | #22: Chemical | ChemComp-PEE / | #23: Chemical | ChemComp-PLX / ( | #24: Chemical | ChemComp-8Q1 / | #25: Chemical | ChemComp-NDP / | #26: Chemical | ChemComp-UQ / | #27: Chemical | #28: Chemical | ChemComp-MG / | #29: Chemical | ChemComp-CDL / | #30: Chemical | ChemComp-970 / ( | #31: Chemical | ChemComp-ZN / | #32: Water | ChemComp-HOH / | |
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-Details
| Has ligand of interest | Y |
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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: Respiratory complex I / Type: COMPLEX / Entity ID: #1-#18 / Source: NATURAL |
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| Source (natural) | Organism: ![]() |
| Buffer solution | pH: 7.5 |
| Specimen | Embedding applied: NO / Shadowing applied: NO / Staining applied: NO / Vitrification applied: YES |
| Vitrification | Cryogen name: ETHANE |
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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: 1800 nm / Nominal defocus min: 1300 nm |
| Image recording | Electron dose: 50 e/Å2 / Film or detector model: GATAN K3 (6k x 4k) |
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Processing
| CTF correction | Type: PHASE FLIPPING AND AMPLITUDE CORRECTION |
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| 3D reconstruction | Resolution: 2.4 Å / Resolution method: FSC 0.143 CUT-OFF / Num. of particles: 326044 / Symmetry type: POINT |
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FIELD EMISSION GUN