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- PDB-8ibe: Respiratory complex Peripheral Arm of CI, focus-refined map of ty... -
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Open data
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Basic information
Entry | Database: PDB / ID: 8ibe | |||||||||
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Title | Respiratory complex Peripheral Arm of CI, focus-refined map of type II, Wild type mouse under cold temperature | |||||||||
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![]() | ELECTRON TRANSPORT / Respiratory complex / Respiratory supercomplex | |||||||||
Function / homology | ![]() response to injury involved in regulation of muscle adaptation / mesenchymal stem cell proliferation / reproductive system development / Protein lipoylation / Mitochondrial Fatty Acid Beta-Oxidation / Complex I biogenesis / RHOG GTPase cycle / Respiratory electron transport / protein insertion into mitochondrial inner membrane / mesenchymal stem cell differentiation ...response to injury involved in regulation of muscle adaptation / mesenchymal stem cell proliferation / reproductive system development / Protein lipoylation / Mitochondrial Fatty Acid Beta-Oxidation / Complex I biogenesis / RHOG GTPase cycle / Respiratory electron transport / protein insertion into mitochondrial inner membrane / mesenchymal stem cell differentiation / circulatory system development / blastocyst hatching / respiratory system process / psychomotor behavior / Mitochondrial protein degradation / response to light intensity / cellular response to oxygen levels / respiratory chain complex / stem cell division / mitochondrial [2Fe-2S] assembly complex / iron-sulfur cluster assembly complex / mitochondrial large ribosomal subunit binding / gliogenesis / cardiac muscle tissue development / neural precursor cell proliferation / [2Fe-2S] cluster assembly / adult walking behavior / cellular response to glucocorticoid stimulus / oxygen sensor activity / response to hydroperoxide / iron-sulfur cluster assembly / adult behavior / dopamine metabolic process / NADH:ubiquinone reductase (H+-translocating) / positive regulation of execution phase of apoptosis / NADH dehydrogenase activity / mitochondrial electron transport, NADH to ubiquinone / mitochondrial respiratory chain complex I assembly / proton motive force-driven mitochondrial ATP synthesis / respiratory chain complex I / DNA damage response, signal transduction by p53 class mediator / NADH dehydrogenase (ubiquinone) activity / neuron development / cellular response to interferon-beta / quinone binding / ATP synthesis coupled electron transport / cellular response to retinoic acid / extrinsic apoptotic signaling pathway / muscle contraction / tricarboxylic acid cycle / reactive oxygen species metabolic process / visual perception / aerobic respiration / regulation of mitochondrial membrane potential / regulation of membrane potential / kidney development / respiratory electron transport chain / fatty acid metabolic process / mitochondrion organization / neurogenesis / sensory perception of sound / mitochondrial membrane / brain development / multicellular organism growth / : / mitochondrial intermembrane space / 2 iron, 2 sulfur cluster binding / cognition / circadian rhythm / positive regulation of protein catabolic process / NAD binding / fatty acid biosynthetic process / cellular senescence / FMN binding / myelin sheath / nervous system development / 4 iron, 4 sulfur cluster binding / gene expression / neuron apoptotic process / response to oxidative stress / electron transfer activity / response to hypoxia / mitochondrial inner membrane / nuclear body / mitochondrial matrix / inflammatory response / response to xenobiotic stimulus / innate immune response / negative regulation of DNA-templated transcription / neuronal cell body / dendrite / ubiquitin protein ligase binding / protein-containing complex binding / mitochondrion / nucleoplasm / ATP binding / nucleus / metal ion binding / cytosol / cytoplasm Similarity search - Function | |||||||||
Biological species | ![]() ![]() | |||||||||
Method | ELECTRON MICROSCOPY / single particle reconstruction / cryo EM / Resolution: 3.3 Å | |||||||||
![]() | Shin, Y.-C. / Liao, M. | |||||||||
Funding support | ![]()
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![]() | ![]() Title: Structural basis of respiratory complex adaptation to cold temperatures. Authors: Young-Cheul Shin / Pedro Latorre-Muro / Amina Djurabekova / Oleksii Zdorevskyi / Christopher F Bennett / Nils Burger / Kangkang Song / Chen Xu / Joao A Paulo / Steven P Gygi / Vivek Sharma / ...Authors: Young-Cheul Shin / Pedro Latorre-Muro / Amina Djurabekova / Oleksii Zdorevskyi / Christopher F Bennett / Nils Burger / Kangkang Song / Chen Xu / Joao A Paulo / Steven P Gygi / Vivek Sharma / Maofu Liao / Pere Puigserver / ![]() ![]() ![]() Abstract: In response to cold, mammals activate brown fat for respiratory-dependent thermogenesis reliant on the electron transport chain. Yet, the structural basis of respiratory complex adaptation upon cold ...In response to cold, mammals activate brown fat for respiratory-dependent thermogenesis reliant on the electron transport chain. Yet, the structural basis of respiratory complex adaptation upon cold exposure remains elusive. Herein, we combined thermoregulatory physiology and cryoelectron microscopy (cryo-EM) to study endogenous respiratory supercomplexes from mice exposed to different temperatures. A cold-induced conformation of CI:III (termed type 2) supercomplex was identified with a ∼25° rotation of CIII around its inter-dimer axis, shortening inter-complex Q exchange space, and exhibiting catalytic states that favor electron transfer. Large-scale supercomplex simulations in mitochondrial membranes reveal how lipid-protein arrangements stabilize type 2 complexes to enhance catalytic activity. Together, our cryo-EM studies, multiscale simulations, and biochemical analyses unveil the thermoregulatory mechanisms and dynamics of increased respiratory capacity in brown fat at the structural and energetic level. | |||||||||
History |
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Structure visualization
Structure viewer | Molecule: ![]() ![]() |
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Downloads & links
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Download
PDBx/mmCIF format | ![]() | 790 KB | Display | ![]() |
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PDB format | ![]() | 627 KB | Display | ![]() |
PDBx/mmJSON format | ![]() | Tree view | ![]() | |
Others | ![]() |
-Validation report
Summary document | ![]() | 2.1 MB | Display | ![]() |
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Full document | ![]() | 2.2 MB | Display | |
Data in XML | ![]() | 123.7 KB | Display | |
Data in CIF | ![]() | 187.4 KB | Display | |
Arichive directory | ![]() ![]() | HTTPS FTP |
-Related structure data
Related structure data | ![]() 35341MC ![]() 8iaoC ![]() 8iapC ![]() 8iaqC ![]() 8iarC ![]() 8ib4C ![]() 8ib5C ![]() 8ib6C ![]() 8ib7C ![]() 8ib9C ![]() 8ibaC ![]() 8ibbC ![]() 8ibcC ![]() 8ibdC ![]() 8ibfC ![]() 8ibgC ![]() 8ic2C ![]() 8ic3C ![]() 8ic4C ![]() 8ic5C ![]() 8xnlC ![]() 8xnmC ![]() 8xnnC ![]() 8xnoC ![]() 8xnpC ![]() 8xnqC ![]() 8xnrC ![]() 8xnsC ![]() 8xntC ![]() 8xnuC ![]() 8xnvC ![]() 8xnwC ![]() 8xnxC ![]() 8xnyC ![]() 8xnzC ![]() 8xo0C M: map data used to model this data C: citing same article ( |
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Similar structure data | Similarity search - Function & homology ![]() |
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Links
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Assembly
Deposited unit | ![]()
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Components
-NADH-ubiquinone oxidoreductase chain ... , 2 types, 2 molecules AH
#1: Protein | Mass: 13223.775 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) ![]() ![]() References: UniProt: P03899, NADH:ubiquinone reductase (H+-translocating) |
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#8: Protein | Mass: 36077.016 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) ![]() ![]() References: UniProt: P03888, NADH:ubiquinone reductase (H+-translocating) |
-NADH dehydrogenase [ubiquinone] iron-sulfur protein ... , 6 types, 6 molecules BCDIQR
#2: Protein | Mass: 24715.912 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) ![]() ![]() References: UniProt: Q9DC70, NADH:ubiquinone reductase (H+-translocating) |
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#3: Protein | Mass: 30191.307 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) ![]() ![]() References: UniProt: Q9DCT2, NADH:ubiquinone reductase (H+-translocating) |
#4: Protein | Mass: 52693.559 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) ![]() ![]() References: UniProt: Q91WD5, NADH:ubiquinone reductase (H+-translocating) |
#9: Protein | Mass: 24068.355 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) ![]() ![]() References: UniProt: Q8K3J1, NADH:ubiquinone reductase (H+-translocating) |
#11: Protein | Mass: 19814.725 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) ![]() ![]() |
#12: Protein | Mass: 13041.828 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) ![]() ![]() |
-NADH dehydrogenase [ubiquinone] flavoprotein ... , 3 types, 3 molecules EFs
#5: Protein | Mass: 27318.336 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) ![]() ![]() References: UniProt: Q9D6J6, NADH:ubiquinone reductase (H+-translocating) |
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#6: Protein | Mass: 50904.152 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) ![]() ![]() References: UniProt: Q91YT0, NADH:ubiquinone reductase (H+-translocating) |
#23: Protein | Mass: 11833.504 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) ![]() ![]() |
-Protein , 2 types, 2 molecules GT
#7: Protein | Mass: 79866.688 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) ![]() ![]() References: UniProt: Q91VD9, NADH:ubiquinone reductase (H+-translocating) |
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#14: Protein | Mass: 17390.289 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) ![]() ![]() |
-NADH dehydrogenase [ubiquinone] 1 alpha subcomplex subunit ... , 10 types, 10 molecules PSVWXZabqr
#10: Protein | Mass: 42588.129 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) ![]() ![]() |
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#13: Protein | Mass: 10932.675 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) ![]() ![]() |
#15: Protein | Mass: 13380.719 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) ![]() ![]() |
#16: Protein | Mass: 15311.858 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) ![]() ![]() |
#17: Protein | Mass: 20025.127 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) ![]() ![]() |
#18: Protein | Mass: 16881.588 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) ![]() ![]() |
#19: Protein | Mass: 8149.524 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) ![]() ![]() |
#20: Protein | Mass: 9338.867 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) ![]() ![]() |
#21: Protein | Mass: 17112.416 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) ![]() ![]() |
#22: Protein | Mass: 12595.592 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) ![]() ![]() |
-Non-polymers , 11 types, 20 molecules 




















#24: Chemical | #25: Chemical | ChemComp-SF4 / #26: Chemical | ChemComp-UQ1 / | #27: Chemical | #28: Chemical | #29: Chemical | ChemComp-FMN / | #30: Chemical | ChemComp-UQ9 / | #31: Chemical | ChemComp-NDP / | #32: Chemical | ChemComp-ZN / | #33: Chemical | ChemComp-EHZ / ~{ | #34: Chemical | ChemComp-CDL / | |
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-Details
Has ligand of interest | Y |
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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 |
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Sample preparation
Component | Name: Respiratory Supercomplex CI:CIII2 / Type: COMPLEX / Entity ID: #1-#23 / Source: NATURAL |
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Molecular weight | Value: 1.32 MDa / Experimental value: NO |
Source (natural) | Organism: ![]() ![]() |
Buffer solution | pH: 8 |
Specimen | Conc.: 0.33 mg/ml / 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: Talos Arctica / Image courtesy: FEI Company | ||||||||||||
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Microscopy | Model: FEI TALOS ARCTICA | ||||||||||||
Electron gun | Electron source: ![]() | ||||||||||||
Electron lens | Mode: OTHER / Nominal defocus max: 2200 nm / Nominal defocus min: 1000 nm | ||||||||||||
Image recording |
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Processing
CTF correction | Type: NONE |
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3D reconstruction | Resolution: 3.3 Å / Resolution method: FSC 0.143 CUT-OFF / Num. of particles: 177076 / Symmetry type: POINT |