+Open data
-Basic information
Entry | Database: PDB / ID: 6zkh | |||||||||
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Title | Complex I with NADH, open1 | |||||||||
Components |
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Keywords | ELECTRON TRANSPORT / complex / respiration / NADH / proton pump / mitochondria / iron-sulphur cluster / oxidoreductase / membrane protein | |||||||||
Function / homology | Function and homology information NADH:ubiquinone reductase (H+-translocating) / NADH dehydrogenase activity / apoptotic mitochondrial changes / : / mitochondrial electron transport, NADH to ubiquinone / mitochondrial respiratory chain complex I assembly / electron transport coupled proton transport / acyl binding / acyl carrier activity / NADH dehydrogenase (ubiquinone) activity ...NADH:ubiquinone reductase (H+-translocating) / NADH dehydrogenase activity / apoptotic mitochondrial changes / : / mitochondrial electron transport, NADH to ubiquinone / mitochondrial respiratory chain complex I assembly / electron transport coupled proton transport / acyl binding / acyl carrier activity / NADH dehydrogenase (ubiquinone) activity / ATP synthesis coupled electron transport / : / membrane => GO:0016020 / ATP metabolic process / respiratory electron transport chain / reactive oxygen species metabolic process / FAD binding / regulation of mitochondrial membrane potential / electron transport chain / mitochondrial intermembrane space / 2 iron, 2 sulfur cluster binding / circadian rhythm / NAD binding / FMN binding / 4 iron, 4 sulfur cluster binding / response to oxidative stress / mitochondrial inner membrane / oxidoreductase activity / mitochondrial matrix / protein-containing complex binding / metal ion binding Similarity search - Function | |||||||||
Biological species | Ovis aries (sheep) | |||||||||
Method | ELECTRON MICROSCOPY / single particle reconstruction / cryo EM / Resolution: 3 Å | |||||||||
Authors | Kampjut, D. / Sazanov, L.A. | |||||||||
Funding support | European Union, 2items
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Citation | Journal: Science / Year: 2020 Title: The coupling mechanism of mammalian respiratory complex I. Authors: Domen Kampjut / Leonid A Sazanov / Abstract: Mitochondrial complex I couples NADH:ubiquinone oxidoreduction to proton pumping by an unknown mechanism. Here, we present cryo-electron microscopy structures of ovine complex I in five different ...Mitochondrial complex I couples NADH:ubiquinone oxidoreduction to proton pumping by an unknown mechanism. Here, we present cryo-electron microscopy structures of ovine complex I in five different conditions, including turnover, at resolutions up to 2.3 to 2.5 angstroms. Resolved water molecules allowed us to experimentally define the proton translocation pathways. Quinone binds at three positions along the quinone cavity, as does the inhibitor rotenone that also binds within subunit ND4. Dramatic conformational changes around the quinone cavity couple the redox reaction to proton translocation during open-to-closed state transitions of the enzyme. In the induced deactive state, the open conformation is arrested by the ND6 subunit. We propose a detailed molecular coupling mechanism of complex I, which is an unexpected combination of conformational changes and electrostatic interactions. | |||||||||
History |
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-Structure visualization
Movie |
Movie viewer |
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Structure viewer | Molecule: MolmilJmol/JSmol |
-Downloads & links
-Download
PDBx/mmCIF format | 6zkh.cif.gz | 1.7 MB | Display | PDBx/mmCIF format |
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PDB format | pdb6zkh.ent.gz | 1.4 MB | Display | PDB format |
PDBx/mmJSON format | 6zkh.json.gz | Tree view | PDBx/mmJSON format | |
Others | Other downloads |
-Validation report
Summary document | 6zkh_validation.pdf.gz | 2.3 MB | Display | wwPDB validaton report |
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Full document | 6zkh_full_validation.pdf.gz | 2.4 MB | Display | |
Data in XML | 6zkh_validation.xml.gz | 202.4 KB | Display | |
Data in CIF | 6zkh_validation.cif.gz | 314.9 KB | Display | |
Arichive directory | https://data.pdbj.org/pub/pdb/validation_reports/zk/6zkh ftp://data.pdbj.org/pub/pdb/validation_reports/zk/6zkh | HTTPS FTP |
-Related structure data
Related structure data | 11249MC 6zk9C 6zkaC 6zkbC 6zkcC 6zkdC 6zkeC 6zkfC 6zkgC 6zkiC 6zkjC 6zkkC 6zklC 6zkmC 6zknC 6zkoC 6zkpC 6zkqC 6zkrC 6zksC 6zktC 6zkuC 6zkvC M: map data used to model this data C: citing same article (ref.) |
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Similar structure data |
-Links
-Assembly
Deposited unit |
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1 |
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-Components
-NADH dehydrogenase [ubiquinone] ... , 8 types, 8 molecules 1Yceikov
#1: Protein | Mass: 50687.750 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Ovis aries (sheep) References: UniProt: W5PUX0, NADH dehydrogenase, NADH:ubiquinone reductase (H+-translocating) |
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#18: Protein | Mass: 20139.209 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Ovis aries (sheep) / References: UniProt: W5PYA5 |
#22: Protein | Mass: 19381.994 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Ovis aries (sheep) / References: UniProt: W5PE07 |
#24: Protein | Mass: 11097.824 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Ovis aries (sheep) / References: UniProt: W5QAH8 |
#28: Protein | Mass: 17115.508 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Ovis aries (sheep) / References: UniProt: B9VGZ9 |
#29: Protein | Mass: 40557.148 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Ovis aries (sheep) / References: UniProt: W5QBF5 |
#33: Protein | Mass: 14431.655 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Ovis aries (sheep) / References: UniProt: W5P9Q8 |
#40: Protein | Mass: 21752.602 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Ovis aries (sheep) / References: UniProt: W5Q1B0 |
-Mitochondrial complex I, ... , 16 types, 16 molecules 2469VZabfhqrwxyz
#2: Protein | Mass: 27373.551 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Ovis aries (sheep) / References: UniProt: W5NRY1 |
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#4: Protein | Mass: 52661.453 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Ovis aries (sheep) |
#6: Protein | Mass: 24622.900 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Ovis aries (sheep) |
#7: Protein | Mass: 24496.121 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Ovis aries (sheep) |
#15: Protein | Mass: 14784.009 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Ovis aries (sheep) / References: UniProt: W5PAR2 |
#19: Protein | Mass: 20880.752 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Ovis aries (sheep) |
#20: Protein | Mass: 11916.529 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Ovis aries (sheep) |
#21: Protein | Mass: 13457.175 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Ovis aries (sheep) |
#25: Protein | Mass: 13287.505 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Ovis aries (sheep) / References: UniProt: W5PNX7 |
#27: Protein | Mass: 12701.613 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Ovis aries (sheep) / References: UniProt: W5P0I2 |
#35: Protein | Mass: 16766.461 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Ovis aries (sheep) |
#36: Protein | Mass: 15565.126 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Ovis aries (sheep) / References: UniProt: W5PZE3 |
#41: Protein | Mass: 17410.660 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Ovis aries (sheep) / References: UniProt: W5PWF1 |
#42: Protein | Mass: 8802.174 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Ovis aries (sheep) |
#43: Protein | Mass: 7075.305 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Ovis aries (sheep) |
#44: Protein | Mass: 8211.519 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Ovis aries (sheep) |
-NADH:ubiquinone oxidoreductase core subunit ... , 2 types, 2 molecules 35
#3: Protein | Mass: 79519.297 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Ovis aries (sheep) / References: UniProt: W5QB34 |
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#5: Protein | Mass: 30384.570 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Ovis aries (sheep) / References: UniProt: W5PB27 |
-NADH-ubiquinone oxidoreductase chain ... , 7 types, 7 molecules AHJKLMN
#8: Protein | Mass: 13106.520 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Ovis aries (sheep) References: UniProt: O78753, NADH:ubiquinone reductase (H+-translocating) |
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#9: Protein | Mass: 35884.902 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Ovis aries (sheep) References: UniProt: O78747, NADH:ubiquinone reductase (H+-translocating) |
#10: Protein | Mass: 19126.619 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Ovis aries (sheep) References: UniProt: O78757, NADH:ubiquinone reductase (H+-translocating) |
#11: Protein | Mass: 10868.237 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Ovis aries (sheep) References: UniProt: O78754, NADH:ubiquinone reductase (H+-translocating) |
#12: Protein | Mass: 68438.906 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Ovis aries (sheep) References: UniProt: O78756, NADH:ubiquinone reductase (H+-translocating) |
#13: Protein | Mass: 52086.742 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Ovis aries (sheep) References: UniProt: O78755, NADH:ubiquinone reductase (H+-translocating) |
#14: Protein | Mass: 39149.805 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Ovis aries (sheep) References: UniProt: O78748, NADH:ubiquinone reductase (H+-translocating) |
-NADH:ubiquinone oxidoreductase subunit ... , 10 types, 10 molecules Wdglmnpstu
#16: Protein | Mass: 21614.201 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Ovis aries (sheep) / References: UniProt: W5QHN8 |
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#23: Protein | Mass: 43025.590 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Ovis aries (sheep) / References: UniProt: W5PI58 |
#26: Protein | Mass: 16302.812 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Ovis aries (sheep) / References: UniProt: W5QC06 |
#30: Protein | Mass: 12605.594 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Ovis aries (sheep) / References: UniProt: W5QFF9 |
#31: Protein | Mass: 9325.851 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Ovis aries (sheep) / References: UniProt: W5NYM7 |
#32: Protein | Mass: 11146.679 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Ovis aries (sheep) / References: UniProt: W5Q5T4 |
#34: Protein | Mass: 15236.375 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Ovis aries (sheep) / References: UniProt: W5QF73 |
#37: Protein | Mass: 16413.807 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Ovis aries (sheep) / References: UniProt: W5P5V3 |
#38: Protein | Mass: 21779.910 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Ovis aries (sheep) / References: UniProt: W5PGA3 |
#39: Protein | Mass: 12226.770 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Ovis aries (sheep) / References: UniProt: W5PVD7 |
-Protein , 1 types, 2 molecules Xj
#17: Protein | Mass: 17608.199 Da / Num. of mol.: 2 / Source method: isolated from a natural source / Source: (natural) Ovis aries (sheep) / References: UniProt: W5NQT7 |
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-Non-polymers , 14 types, 46 molecules
#45: Chemical | ChemComp-SF4 / #46: Chemical | ChemComp-FMN / | #47: Chemical | ChemComp-NAI / | #48: Chemical | #49: Chemical | ChemComp-K / | #50: Chemical | ChemComp-PC1 / #51: Chemical | ChemComp-DCQ / | #52: Chemical | ChemComp-3PE / #53: Chemical | ChemComp-CDL / #54: Chemical | #55: Chemical | ChemComp-ZN / | #56: Chemical | ChemComp-NDP / | #57: Chemical | ChemComp-AMP / | #58: 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 |
-Sample preparation
Component | Name: Complex I with NADH, open1 / Type: COMPLEX / Entity ID: #1-#44 / Source: NATURAL |
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Molecular weight | Value: 1 MDa / Experimental value: YES |
Source (natural) | Organism: Ovis aries (sheep) |
Buffer solution | pH: 7.4 |
Specimen | Conc.: 3 mg/ml / Embedding applied: NO / Shadowing applied: NO / Staining applied: NO / Vitrification applied: YES |
Vitrification | Instrument: FEI VITROBOT MARK IV / Cryogen name: ETHANE / Humidity: 100 % / Chamber temperature: 277 K |
-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 / Cs: 2.7 mm |
Image recording | Electron dose: 100 e/Å2 / Detector mode: INTEGRATING / Film or detector model: FEI FALCON III (4k x 4k) |
-Processing
EM software |
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CTF correction | Type: PHASE FLIPPING AND AMPLITUDE CORRECTION | ||||||||||||||||||||||||||||
3D reconstruction | Resolution: 3 Å / Resolution method: FSC 0.143 CUT-OFF / Num. of particles: 28253 / Symmetry type: POINT | ||||||||||||||||||||||||||||
Atomic model building | B value: 50 / Protocol: FLEXIBLE FIT / Space: REAL / Target criteria: Correlation coefficient | ||||||||||||||||||||||||||||
Atomic model building | PDB-ID: 5LNK |