+Open data
-Basic information
Entry | Database: PDB / ID: 7vb7 | |||||||||
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Title | Matrix arm of active state CI from DQ-NADH dataset | |||||||||
Components |
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Keywords | ELECTRON TRANSPORT / Respiratory / Complex | |||||||||
Function / homology | Function and homology information RHOG GTPase cycle / Complex I biogenesis / Respiratory electron transport / Mitochondrial protein degradation / oxidoreductase activity, acting on NAD(P)H / cardiac muscle tissue development / NADH:ubiquinone reductase (H+-translocating) / NADH dehydrogenase activity / mitochondrial ATP synthesis coupled electron transport / : ...RHOG GTPase cycle / Complex I biogenesis / Respiratory electron transport / Mitochondrial protein degradation / oxidoreductase activity, acting on NAD(P)H / cardiac muscle tissue development / NADH:ubiquinone reductase (H+-translocating) / NADH dehydrogenase activity / mitochondrial ATP synthesis coupled electron transport / : / mitochondrial respiratory chain complex I assembly / mitochondrial electron transport, NADH to ubiquinone / acyl binding / acyl carrier activity / NADH dehydrogenase (ubiquinone) activity / negative regulation of intrinsic apoptotic signaling pathway / ATP synthesis coupled electron transport / quinone binding / : / respiratory electron transport chain / reactive oxygen species metabolic process / electron transport chain / negative regulation of cell growth / 2 iron, 2 sulfur cluster binding / NAD binding / FMN binding / nervous system development / 4 iron, 4 sulfur cluster binding / mitochondrial inner membrane / nuclear body / mitochondrion / membrane / metal ion binding / cytosol Similarity search - Function | |||||||||
Biological species | Sus scrofa (pig) | |||||||||
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: 2022 Title: 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. | |||||||||
History |
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-Structure visualization
Structure viewer | Molecule: MolmilJmol/JSmol |
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-Downloads & links
-Download
PDBx/mmCIF format | 7vb7.cif.gz | 662.7 KB | Display | PDBx/mmCIF format |
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PDB format | pdb7vb7.ent.gz | 540.6 KB | Display | PDB format |
PDBx/mmJSON format | 7vb7.json.gz | Tree view | PDBx/mmJSON format | |
Others | Other downloads |
-Validation report
Summary document | 7vb7_validation.pdf.gz | 1.4 MB | Display | wwPDB validaton report |
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Full document | 7vb7_full_validation.pdf.gz | 1.5 MB | Display | |
Data in XML | 7vb7_validation.xml.gz | 97.7 KB | Display | |
Data in CIF | 7vb7_validation.cif.gz | 151.3 KB | Display | |
Arichive directory | https://data.pdbj.org/pub/pdb/validation_reports/vb/7vb7 ftp://data.pdbj.org/pub/pdb/validation_reports/vb/7vb7 | HTTPS FTP |
-Related structure data
Related structure data | 31874MC 7v2cC 7v2dC 7v2eC 7v2fC 7v2hC 7v2kC 7v2rC 7v30C 7v31C 7v32C 7v33C 7v3mC 7vblC 7vbnC 7vbpC 7vbzC 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 (ref.) |
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Similar structure data | Similarity search - Function & homologyF&H Search |
-Links
-Assembly
Deposited unit |
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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) Sus scrofa (pig) 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) Sus scrofa (pig) / References: UniProt: A0A4X1TFI3 |
#14: Protein | Mass: 23826.336 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Sus scrofa (pig) / References: UniProt: A0A287BG40 |
-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) Sus scrofa (pig) / References: UniProt: A0A287BDC0 |
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#3: Protein | Mass: 17874.953 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Sus scrofa (pig) / References: UniProt: I3LK43 |
#11: Protein | Mass: 14442.389 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Sus scrofa (pig) / References: UniProt: G8IFA6 |
#15: Protein | Mass: 24521.730 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Sus scrofa (pig) / References: UniProt: A0A286ZNN4 |
#16: Protein | Mass: 44127.691 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Sus scrofa (pig) / References: UniProt: A0A480JYS1 |
#17: Protein | Mass: 10567.635 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Sus scrofa (pig) / References: UniProt: F1S031 |
-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) Sus scrofa (pig) / References: UniProt: A0A480VKQ8 |
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#5: Protein | Mass: 9841.280 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Sus scrofa (pig) / References: UniProt: F1RGE3 |
#7: Protein | Mass: 12949.106 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Sus scrofa (pig) / References: UniProt: A0A5G2RN85 |
#8: Protein | Mass: 12517.394 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Sus scrofa (pig) / References: UniProt: A0A4X1VLA2 |
#13: Protein | Mass: 17031.244 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Sus scrofa (pig) / References: UniProt: F1SQP4 |
#18: Protein/peptide | Mass: 3204.705 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Sus scrofa (pig) / References: UniProt: F1S6Q1 |
-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) Sus scrofa (pig) / References: UniProt: D0G781 |
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#9: Protein | Mass: 38954.051 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Sus scrofa (pig) / References: UniProt: A0A480QJC4 |
#12: Protein | Mass: 75770.773 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Sus scrofa (pig) / References: UniProt: F1SHD7 |
-Non-polymers , 14 types, 755 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-CDL / | #26: Chemical | ChemComp-NDP / | #27: Chemical | ChemComp-UQ / | #28: Chemical | #29: Chemical | ChemComp-MG / | #30: Chemical | ChemComp-DCQ / | #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 |
-Sample preparation
Component | Name: Respiratory complex I / Type: COMPLEX / Entity ID: #1-#18 / Source: NATURAL |
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Source (natural) | Organism: Sus scrofa (pig) |
Buffer solution | pH: 7.5 |
Specimen | Embedding applied: NO / Shadowing applied: NO / Staining applied: NO / Vitrification applied: YES |
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 / 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) |
-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: 462013 / Symmetry type: POINT |