+Open data
-Basic information
Entry | Database: PDB / ID: 5lc5 | ||||||
---|---|---|---|---|---|---|---|
Title | Structure of mammalian respiratory Complex I, class2 | ||||||
Components |
| ||||||
Keywords | OXIDOREDUCTASE / NADH:ubiquinone oxidoreductase / multienzyme complexes / Complex I / mitochondria | ||||||
Function / homology | Function and homology information Complex I biogenesis / RHOG GTPase cycle / 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 ...Complex I biogenesis / RHOG GTPase cycle / 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 / ubiquinone binding / Mitochondrial protein degradation / NADH:ubiquinone reductase (H+-translocating) / apoptotic mitochondrial changes / NADH dehydrogenase activity / 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 / ATP metabolic process / aerobic respiration / neurogenesis / respiratory electron transport chain / reactive oxygen species metabolic process / regulation of mitochondrial membrane potential / fatty acid binding / mitochondrial membrane / mitochondrial intermembrane space / fatty acid biosynthetic process / 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 / negative regulation of DNA-templated transcription / ubiquitin protein ligase binding / apoptotic process / mitochondrion / nucleoplasm / metal ion binding / cytoplasm Similarity search - Function | ||||||
Biological species | Bos taurus (cattle) | ||||||
Method | ELECTRON MICROSCOPY / single particle reconstruction / cryo EM / Resolution: 4.35 Å | ||||||
Authors | Vinothkumar, K.R. / Zhu, J. / Hirst, J. | ||||||
Funding support | United Kingdom, 1items
| ||||||
Citation | Journal: Nature / Year: 2016 Title: Structure of mammalian respiratory complex I. Authors: Jiapeng Zhu / Kutti R Vinothkumar / Judy Hirst / Abstract: Complex I (NADH:ubiquinone oxidoreductase), one of the largest membrane-bound enzymes in the cell, powers ATP synthesis in mammalian mitochondria by using the reducing potential of NADH to drive ...Complex I (NADH:ubiquinone oxidoreductase), one of the largest membrane-bound enzymes in the cell, powers ATP synthesis in mammalian mitochondria by using the reducing potential of NADH to drive protons across the inner mitochondrial membrane. Mammalian complex I (ref. 1) contains 45 subunits, comprising 14 core subunits that house the catalytic machinery (and are conserved from bacteria to humans) and a mammalian-specific cohort of 31 supernumerary subunits. Knowledge of the structures and functions of the supernumerary subunits is fragmentary. Here we describe a 4.2-Å resolution single-particle electron cryomicroscopy structure of complex I from Bos taurus. We have located and modelled all 45 subunits, including the 31 supernumerary subunits, to provide the entire structure of the mammalian complex. Computational sorting of the particles identified different structural classes, related by subtle domain movements, which reveal conformationally dynamic regions and match biochemical descriptions of the 'active-to-de-active' enzyme transition that occurs during hypoxia. Our structures therefore provide a foundation for understanding complex I assembly and the effects of mutations that cause clinically relevant complex I dysfunctions, give insights into the structural and functional roles of the supernumerary subunits and reveal new information on the mechanism and regulation of catalysis. | ||||||
History |
|
-Structure visualization
Movie |
Movie viewer |
---|---|
Structure viewer | Molecule: MolmilJmol/JSmol |
-Downloads & links
-Download
PDBx/mmCIF format | 5lc5.cif.gz | 1.3 MB | Display | PDBx/mmCIF format |
---|---|---|---|---|
PDB format | pdb5lc5.ent.gz | 1 MB | Display | PDB format |
PDBx/mmJSON format | 5lc5.json.gz | Tree view | PDBx/mmJSON format | |
Others | Other downloads |
-Validation report
Summary document | 5lc5_validation.pdf.gz | 1.8 MB | Display | wwPDB validaton report |
---|---|---|---|---|
Full document | 5lc5_full_validation.pdf.gz | 1.9 MB | Display | |
Data in XML | 5lc5_validation.xml.gz | 165.3 KB | Display | |
Data in CIF | 5lc5_validation.cif.gz | 276.1 KB | Display | |
Arichive directory | https://data.pdbj.org/pub/pdb/validation_reports/lc/5lc5 ftp://data.pdbj.org/pub/pdb/validation_reports/lc/5lc5 | HTTPS FTP |
-Related structure data
Related structure data | 4032MC 4040C 4041C 5ldwC 5ldxC M: map data used to model this data C: citing same article (ref.) |
---|---|
Similar structure data |
-Links
-Assembly
Deposited unit |
|
---|---|
1 |
|
-Components
-NADH-ubiquinone oxidoreductase chain ... , 7 types, 7 molecules AHJKLMN
#1: Protein | Mass: 12510.898 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Bos taurus (cattle) References: UniProt: P03898, NADH:ubiquinone reductase (H+-translocating) |
---|---|
#8: Protein | Mass: 35084.062 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Bos taurus (cattle) References: UniProt: P03887, NADH:ubiquinone reductase (H+-translocating) |
#10: Protein | Mass: 18622.936 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Bos taurus (cattle) References: UniProt: P03924, NADH:ubiquinone reductase (H+-translocating) |
#11: Protein | Mass: 10437.718 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Bos taurus (cattle) References: UniProt: P03902, NADH:ubiquinone reductase (H+-translocating) |
#12: Protein | Mass: 68067.609 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Bos taurus (cattle) References: UniProt: P03920, NADH:ubiquinone reductase (H+-translocating) |
#13: Protein | Mass: 51886.402 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Bos taurus (cattle) References: UniProt: P03910, NADH:ubiquinone reductase (H+-translocating) |
#14: Protein | Mass: 38901.461 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Bos taurus (cattle) References: UniProt: P03892, NADH:ubiquinone reductase (H+-translocating) |
-NADH dehydrogenase [ubiquinone] iron-sulfur protein ... , 7 types, 7 molecules BCDIQRe
#2: Protein | Mass: 16625.518 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Details: This chain coordinates Iron-sulphur cluster. / Source: (natural) Bos taurus (cattle) References: UniProt: P42026, NADH:ubiquinone reductase (H+-translocating), NADH dehydrogenase |
---|---|
#3: Protein | Mass: 24202.396 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Bos taurus (cattle) References: UniProt: P23709, NADH:ubiquinone reductase (H+-translocating), NADH dehydrogenase |
#4: Protein | Mass: 48693.758 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Bos taurus (cattle) References: UniProt: P17694, NADH:ubiquinone reductase (H+-translocating), NADH dehydrogenase |
#9: Protein | Mass: 20219.947 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Details: This chain coordinates two SF4. / Source: (natural) Bos taurus (cattle) References: UniProt: P42028, NADH:ubiquinone reductase (H+-translocating), NADH dehydrogenase |
#17: Protein | Mass: 9634.868 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Bos taurus (cattle) |
#18: Protein | Mass: 8316.853 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Details: This chain coordinates a Zinc ion. / Source: (natural) Bos taurus (cattle) / References: UniProt: P23934 |
#31: Protein | Mass: 12694.671 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Bos taurus (cattle) / References: UniProt: Q02379 |
-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 / Details: This chain coordinates one FES. / Source: (natural) Bos taurus (cattle) References: UniProt: P04394, NADH:ubiquinone reductase (H+-translocating), NADH dehydrogenase |
---|---|
#6: Protein | Mass: 50718.777 Da / Num. of mol.: 1 / Source method: isolated from a natural source Details: This chain coordinates two iron-sulfur clusters and also binds Flavin mono nucleotide. Source: (natural) Bos taurus (cattle) References: UniProt: P25708, NADH:ubiquinone reductase (H+-translocating), NADH dehydrogenase |
#45: Protein/peptide | Mass: 2996.685 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Bos taurus (cattle) |
-Protein , 1 types, 1 molecules G
#7: Protein | Mass: 66442.281 Da / Num. of mol.: 1 / Source method: isolated from a natural source Details: This chain coordinates one binuclear FES and two SF4. Source: (natural) Bos taurus (cattle) References: UniProt: P15690, NADH:ubiquinone reductase (H+-translocating), NADH dehydrogenase |
---|
-NADH dehydrogenase [ubiquinone] 1 alpha subcomplex subunit ... , 12 types, 12 molecules OPSVWXYZabqr
#15: Protein | Mass: 34014.227 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Bos taurus (cattle) / References: UniProt: P34942 |
---|---|
#16: Protein | Mass: 28528.021 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Bos taurus (cattle) |
#19: Protein | Mass: 9270.575 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Bos taurus (cattle) / References: UniProt: Q02370 |
#22: Protein | Mass: 13334.608 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Bos taurus (cattle) / References: UniProt: P23935 |
#23: Protein | Mass: 15083.544 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Bos taurus (cattle) / References: UniProt: Q02366 |
#24: Protein | Mass: 18115.223 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Bos taurus (cattle) / References: UniProt: P42029 |
#25: Protein | Mass: 14412.514 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Bos taurus (cattle) / References: UniProt: Q8HXG6 |
#26: Protein | Mass: 14135.900 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Bos taurus (cattle) / References: UniProt: Q95KV7 |
#27: Protein | Mass: 8117.445 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Bos taurus (cattle) / References: UniProt: Q02377 |
#28: Protein | Mass: 7860.488 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Bos taurus (cattle) / References: UniProt: Q02371 |
#43: Protein | Mass: 16309.545 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Bos taurus (cattle) / References: UniProt: O97725 |
#44: Protein | Mass: 7422.140 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Bos taurus (cattle) |
-Acyl carrier protein, ... , 2 types, 2 molecules TU
#20: Protein | Mass: 8672.939 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Bos taurus (cattle) / References: UniProt: P52505 |
---|---|
#21: Protein | Mass: 9846.298 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Bos taurus (cattle) / References: UniProt: P52505 |
-NADH dehydrogenase [ubiquinone] 1 subunit ... , 2 types, 2 molecules cd
#29: Protein | Mass: 8796.211 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Bos taurus (cattle) / References: UniProt: Q02376 |
---|---|
#30: Protein | Mass: 11988.300 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Bos taurus (cattle) / References: UniProt: Q02827 |
-NADH dehydrogenase [ubiquinone] 1 beta subcomplex subunit ... , 11 types, 11 molecules fghijklmnop
#32: Protein | Mass: 6978.148 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Bos taurus (cattle) / References: UniProt: Q02378 |
---|---|
#33: Protein | Mass: 17594.945 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Bos taurus (cattle) / References: UniProt: Q8HXG5 |
#34: Protein | Mass: 18069.865 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Bos taurus (cattle) / References: UniProt: Q02380 |
#35: Protein | Mass: 11636.995 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Bos taurus (cattle) / References: UniProt: Q02367 |
#36: Protein | Mass: 4443.468 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Bos taurus (cattle) |
#37: Protein | Mass: 6315.777 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Bos taurus (cattle) |
#38: Protein | Mass: 10060.393 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Bos taurus (cattle) |
#39: Protein | Mass: 13415.493 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Bos taurus (cattle) / References: UniProt: P48305 |
#40: Protein | Mass: 19246.094 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Bos taurus (cattle) / References: UniProt: Q02369 |
#41: Protein | Mass: 7583.900 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Bos taurus (cattle) / References: UniProt: Q02368 |
#42: Protein | Mass: 16906.949 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Bos taurus (cattle) / References: UniProt: Q02373 |
-Non-polymers , 5 types, 11 molecules
#46: Chemical | ChemComp-SF4 / #47: Chemical | #48: Chemical | ChemComp-FMN / | #49: Chemical | ChemComp-NAP / | #50: Chemical | ChemComp-ZN / | |
---|
-Details
Has protein modification | Y |
---|
-Experimental details
-Experiment
Experiment | Method: ELECTRON MICROSCOPY |
---|---|
EM experiment | Aggregation state: PARTICLE / 3D reconstruction method: single particle reconstruction |
-Sample preparation
Component | Name: Bovine respiratory Complex I / Type: COMPLEX Details: Complex I is the first enzyme in the electron transport chain located in the inner membrane of mitochondria and in higher eukaryotes, it is a multi-subunit membrane protein complex, consisting of >40 subunits. Entity ID: #1-#45 / Source: NATURAL |
---|---|
Molecular weight | Value: 1 MDa / Experimental value: NO |
Source (natural) | Organism: Bos taurus (cattle) / Cellular location: Mitochondria / Organ: Heart / Organelle: Mitochondria |
Buffer solution | pH: 8 |
Buffer component | Conc.: 150 mM / Name: sodium chloride / Formula: NaCl |
Specimen | Conc.: 3.5 mg/ml / Embedding applied: NO / Shadowing applied: NO / Staining applied: NO / Vitrification applied: YES Details: Enzyme was purified from bovine heart mitochondria. The detergent used for the final step is cymal-7. |
Specimen support | Grid material: GOLD / Grid mesh size: 300 divisions/in. / Grid type: Quantifoil |
Vitrification | Instrument: HOMEMADE PLUNGER / Cryogen name: ETHANE / Humidity: 100 % / Chamber temperature: 277.15 K Details: The specimen was vitrified in an environmental plunge-freeze apparatus, blot for 12-15 seconds after the diameter of the blotted meniscus ceases to spread and plunged. |
-Electron microscopy imaging
Experimental equipment | Model: Titan Krios / Image courtesy: FEI Company |
---|---|
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: 59000 X / Calibrated magnification: 105263 X / Calibrated defocus min: 1800 nm / Calibrated defocus max: 5500 nm / Cs: 2.7 mm / C2 aperture diameter: 70 µm / Alignment procedure: COMA FREE |
Specimen holder | Cryogen: NITROGEN / Specimen holder model: FEI TITAN KRIOS AUTOGRID HOLDER / Temperature (max): 85 K / Temperature (min): 85 K |
Image recording | Average exposure time: 2 sec. / Electron dose: 35 e/Å2 / Detector mode: INTEGRATING / Film or detector model: FEI FALCON II (4k x 4k) Details: Images were collected in movie mode at 17 frames per second. Thus each frame has ~1.0 e/A2s |
Image scans | Sampling size: 14 µm / Width: 4096 / Height: 4096 / Movie frames/image: 34 / Used frames/image: 1-34 |
-Processing
Software | Name: REFMAC / Version: 5.8.0134 / Classification: refinement | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
EM software |
| |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Image processing | Details: Each image was exposed for 2 seconds resulting in a total dose of ~35 e/A2s. The frames were captures with a in-house protocol at 17 frames/second. | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
CTF correction | Details: Ctf was estimated from the whole micrograph. Ctf was corrected per particle. Type: NONE | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Particle selection | Num. of particles selected: 139456 / Details: All particles were picked manually | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Symmetry | Point symmetry: C1 (asymmetric) | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
3D reconstruction | Resolution: 4.35 Å / Resolution method: FSC 0.143 CUT-OFF / Num. of particles: 33301 / Num. of class averages: 1 / Symmetry type: POINT | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Atomic model building | B value: 86.75 / Protocol: OTHER / Space: RECIPROCAL / Target criteria: Maximum likelihood | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Refinement | Resolution: 4.35→478.8 Å / Cor.coef. Fo:Fc: 0.945 / SU B: 23.477 / SU ML: 0.274 / ESU R: 0.224 Stereochemistry target values: MAXIMUM LIKELIHOOD WITH PHASES
| |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Solvent computation | Ion probe radii: 0.8 Å / Shrinkage radii: 0.8 Å / VDW probe radii: 1.2 Å / Solvent model: MASK | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Displacement parameters | Biso mean: 86.75 Å2
| |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Refinement step | Cycle: 1 / Total: 51652 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Refine LS restraints |
|