+Open data
-Basic information
Entry | Database: PDB / ID: 8ba0 | |||||||||
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Title | Drosophila melanogaster complex I in the Twisted state (Dm2) | |||||||||
Components |
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Keywords | OXIDOREDUCTASE / Mitochondrial complex I / Respiratory complex I / NADH:ubiquinone oxidoreductase / Ubiquinone | |||||||||
Function / homology | Function and homology information Mitochondrial protein import / Respiratory electron transport / Complex I biogenesis / Mitochondrial Fatty Acid Beta-Oxidation / RHOG GTPase cycle / Protein lipoylation / Mitochondrial protein degradation / regulation of terminal button organization / Neutrophil degranulation / mitochondrial [2Fe-2S] assembly complex ...Mitochondrial protein import / Respiratory electron transport / Complex I biogenesis / Mitochondrial Fatty Acid Beta-Oxidation / RHOG GTPase cycle / Protein lipoylation / Mitochondrial protein degradation / regulation of terminal button organization / Neutrophil degranulation / mitochondrial [2Fe-2S] assembly complex / cellular respiration / ubiquinone binding / NADH:ubiquinone reductase (H+-translocating) / mitochondrial ATP synthesis coupled electron transport / respiratory chain complex I / : / mitochondrial respiratory chain complex I assembly / mitochondrial electron transport, NADH to ubiquinone / electron transport coupled proton transport / acyl binding / acyl carrier activity / NADH dehydrogenase (ubiquinone) activity / ATP synthesis coupled electron transport / quinone binding / : / aerobic respiration / respiratory electron transport chain / proton transmembrane transport / reactive oxygen species metabolic process / determination of adult lifespan / response to reactive oxygen species / mitochondrial membrane / mitochondrial intermembrane space / 2 iron, 2 sulfur cluster binding / NAD binding / FMN binding / 4 iron, 4 sulfur cluster binding / response to oxidative stress / mitochondrial inner membrane / oxidoreductase activity / mitochondrial matrix / mitochondrion / metal ion binding / cytoplasm Similarity search - Function | |||||||||
Biological species | Drosophila melanogaster (fruit fly) | |||||||||
Method | ELECTRON MICROSCOPY / single particle reconstruction / cryo EM / Resolution: 3.68 Å | |||||||||
Authors | Agip, A.N.A. / Chung, I. / Sanchez-Martinez, A. / Whitworth, A.J. / Hirst, J. | |||||||||
Funding support | United Kingdom, 2items
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Citation | Journal: Elife / Year: 2023 Title: Cryo-EM structures of mitochondrial respiratory complex I from . Authors: Ahmed-Noor A Agip / Injae Chung / Alvaro Sanchez-Martinez / Alexander J Whitworth / Judy Hirst / Abstract: Respiratory complex I powers ATP synthesis by oxidative phosphorylation, exploiting the energy from NADH oxidation by ubiquinone to drive protons across an energy-transducing membrane. is a ...Respiratory complex I powers ATP synthesis by oxidative phosphorylation, exploiting the energy from NADH oxidation by ubiquinone to drive protons across an energy-transducing membrane. is a candidate model organism for complex I due to its high evolutionary conservation with the mammalian enzyme, well-developed genetic toolkit, and complex physiology for studies in specific cell types and tissues. Here, we isolate complex I from and determine its structure, revealing a 43-subunit assembly with high structural homology to its 45-subunit mammalian counterpart, including a hitherto unknown homologue to subunit NDUFA3. The major conformational state of the enzyme is the mammalian-type 'ready-to-go' active resting state, with a fully ordered and enclosed ubiquinone-binding site, but a subtly altered global conformation related to changes in subunit ND6. The mammalian-type 'deactive' pronounced resting state is not observed: in two minor states, the ubiquinone-binding site is unchanged, but a deactive-type π-bulge is present in ND6-TMH3. Our detailed structural knowledge of complex I provides a foundation for new approaches to disentangle mechanisms of complex I catalysis and regulation in bioenergetics and physiology. | |||||||||
History |
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-Structure visualization
Structure viewer | Molecule: MolmilJmol/JSmol |
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-Downloads & links
-Download
PDBx/mmCIF format | 8ba0.cif.gz | 1.4 MB | Display | PDBx/mmCIF format |
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PDB format | pdb8ba0.ent.gz | 1.2 MB | Display | PDB format |
PDBx/mmJSON format | 8ba0.json.gz | Tree view | PDBx/mmJSON format | |
Others | Other downloads |
-Validation report
Summary document | 8ba0_validation.pdf.gz | 2.6 MB | Display | wwPDB validaton report |
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Full document | 8ba0_full_validation.pdf.gz | 2.6 MB | Display | |
Data in XML | 8ba0_validation.xml.gz | 206.1 KB | Display | |
Data in CIF | 8ba0_validation.cif.gz | 318.9 KB | Display | |
Arichive directory | https://data.pdbj.org/pub/pdb/validation_reports/ba/8ba0 ftp://data.pdbj.org/pub/pdb/validation_reports/ba/8ba0 | HTTPS FTP |
-Related structure data
Related structure data | 15937MC 8b9zC 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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1 |
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-Components
-NADH-ubiquinone oxidoreductase chain ... , 7 types, 7 molecules AHJKLMN
#1: Protein | Mass: 13572.529 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Drosophila melanogaster (fruit fly) References: UniProt: P18930, NADH:ubiquinone reductase (H+-translocating) |
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#8: Protein | Mass: 36383.520 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Drosophila melanogaster (fruit fly) References: UniProt: C7DZL9, NADH:ubiquinone reductase (H+-translocating) |
#10: Protein | Mass: 19309.604 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Drosophila melanogaster (fruit fly) References: UniProt: P18933, NADH:ubiquinone reductase (H+-translocating) |
#11: Protein | Mass: 11032.422 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Drosophila melanogaster (fruit fly) References: UniProt: P18934, NADH:ubiquinone reductase (H+-translocating) |
#12: Protein | Mass: 65777.867 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Drosophila melanogaster (fruit fly) References: UniProt: C7DZL4, NADH:ubiquinone reductase (H+-translocating) |
#13: Protein | Mass: 51473.168 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Drosophila melanogaster (fruit fly) References: UniProt: P18931, NADH:ubiquinone reductase (H+-translocating) |
#14: Protein | Mass: 39839.887 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Drosophila melanogaster (fruit fly) References: UniProt: P03896, NADH:ubiquinone reductase (H+-translocating) |
-Protein , 6 types, 7 molecules BDGTUbj
#2: Protein | Mass: 20493.963 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Drosophila melanogaster (fruit fly) / References: UniProt: Q9VXK7 | ||||
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#4: Protein | Mass: 48737.969 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Drosophila melanogaster (fruit fly) / References: UniProt: Q9V4E0 | ||||
#7: Protein | Mass: 78724.250 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Drosophila melanogaster (fruit fly) References: UniProt: Q94511, NADH:ubiquinone reductase (H+-translocating) | ||||
#19: Protein | Mass: 17257.992 Da / Num. of mol.: 2 / Source method: isolated from a natural source / Source: (natural) Drosophila melanogaster (fruit fly) / References: UniProt: Q94519 #26: Protein | | Mass: 7376.355 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Drosophila melanogaster (fruit fly) / References: UniProt: Q9W380 #33: Protein | | Mass: 6878.727 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Drosophila melanogaster (fruit fly) / References: UniProt: Q7PL91 |
+NADH dehydrogenase ... , 29 types, 29 molecules CEFIOPQRVWXYZadefghiklmnopqrs
-Non-polymers , 9 types, 22 molecules
#43: Chemical | ChemComp-SF4 / #44: Chemical | ChemComp-3PE / #45: Chemical | #46: Chemical | ChemComp-FMN / | #47: Chemical | #48: Chemical | ChemComp-DGT / | #49: Chemical | ChemComp-NDP / | #50: Chemical | ChemComp-ZN / | #51: Chemical | |
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-Details
Has ligand of interest | N |
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Has protein modification | Y |
-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: Mitochondrial respiratory complex I / Type: COMPLEX Details: Native purification of mitochondrial complex I from Drosophila melanogaster (fruit fly) W1118. Entity ID: #1-#42 / Source: NATURAL | ||||||||||||||||||||
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Molecular weight | Value: 1 MDa / Experimental value: YES | ||||||||||||||||||||
Source (natural) | Organism: Drosophila melanogaster (fruit fly) / Strain: W1118 | ||||||||||||||||||||
Buffer solution | pH: 7.8 | ||||||||||||||||||||
Buffer component |
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Specimen | Conc.: 3.4 mg/ml / Embedding applied: NO / Shadowing applied: NO / Staining applied: NO / Vitrification applied: YES | ||||||||||||||||||||
Specimen support | Details: Following glow discharge for 90 s at 20 mA, the grid was treated for 7 days in an anaerobic glovebox in ethanol containing 5 mM 11-mercaptoundecyl hexaethyleneglycol, washed three times in ...Details: Following glow discharge for 90 s at 20 mA, the grid was treated for 7 days in an anaerobic glovebox in ethanol containing 5 mM 11-mercaptoundecyl hexaethyleneglycol, washed three times in ethanol and dried prior to blotting Grid material: GOLD / Grid type: UltrAuFoil | ||||||||||||||||||||
Vitrification | Instrument: FEI VITROBOT MARK IV / Cryogen name: ETHANE / Humidity: 100 % / Chamber temperature: 277 K / Details: blot for 10 seconds before plunging |
-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: 130000 X / Nominal defocus max: 2000 nm / Nominal defocus min: 1000 nm / Cs: 2.7 mm / C2 aperture diameter: 70 µm |
Specimen holder | Cryogen: NITROGEN / Specimen holder model: FEI TITAN KRIOS AUTOGRID HOLDER |
Image recording | Average exposure time: 10 sec. / Electron dose: 41.88 e/Å2 / Detector mode: COUNTING / Film or detector model: GATAN K2 QUANTUM (4k x 4k) / Num. of grids imaged: 1 / Num. of real images: 3082 |
Image scans | Movie frames/image: 40 |
-Processing
Software | Name: PHENIX / Version: 1.18.2_3874: / Classification: refinement | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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EM software |
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CTF correction | Type: PHASE FLIPPING AND AMPLITUDE CORRECTION | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Particle selection | Num. of particles selected: 194538 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
3D reconstruction | Resolution: 3.68 Å / Resolution method: FSC 0.143 CUT-OFF / Num. of particles: 12343 / Symmetry type: POINT | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Atomic model building | Space: REAL | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Atomic model building | PDB-ID: 6ZR2 Accession code: 6ZR2 / Source name: PDB / Type: experimental model | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Refinement | Highest resolution: 3.68 Å | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Refine LS restraints |
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