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- PDB-8iao: Respiratory complex CI:CIII2, type I, Wild type mouse under therm... -
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Basic information
Entry | Database: PDB / ID: 8iao | |||||||||
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Title | Respiratory complex CI:CIII2, type I, Wild type mouse under thermoneutral temperature | |||||||||
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![]() | ELECTRON TRANSPORT / Respiratory complex / Respiratory supercomplex | |||||||||
Function / homology | ![]() Complex III assembly / subthalamus development / pons development / Mitochondrial protein import / response to injury involved in regulation of muscle adaptation / mesenchymal stem cell proliferation / reproductive system development / Protein lipoylation / cerebellar Purkinje cell layer development / Mitochondrial Fatty Acid Beta-Oxidation ...Complex III assembly / subthalamus development / pons development / Mitochondrial protein import / response to injury involved in regulation of muscle adaptation / mesenchymal stem cell proliferation / reproductive system development / Protein lipoylation / cerebellar Purkinje cell layer development / Mitochondrial Fatty Acid Beta-Oxidation / Complex I biogenesis / RHOG GTPase cycle / Respiratory electron transport / response to mercury ion / protein insertion into mitochondrial inner membrane / mesenchymal stem cell differentiation / pyramidal neuron development / circulatory system development / blastocyst hatching / thalamus development / mitochondrial respiratory chain complex III assembly / respiratory system process / cellular respiration / 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 / response to copper ion / response to alkaloid / gliogenesis / respiratory chain complex III / negative regulation of non-canonical NF-kappaB signal transduction / cardiac muscle tissue development / response to glucagon / quinol-cytochrome-c reductase / neural precursor cell proliferation / [2Fe-2S] cluster assembly / positive regulation of mitochondrial membrane potential / adult walking behavior / ubiquinol-cytochrome-c reductase activity / cellular response to glucocorticoid stimulus / oxygen sensor activity / response to hydroperoxide / mitochondrial electron transport, ubiquinol to cytochrome c / hypothalamus development / positive regulation of ATP biosynthetic process / iron-sulfur cluster assembly / response to cobalamin / midbrain development / adult behavior / dopamine metabolic process / electron transport coupled proton transport / 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 / response to hyperoxia / NADH dehydrogenase (ubiquinone) activity / animal organ regeneration / neuron development / cellular response to interferon-beta / quinone binding / response to cadmium ion / ATP synthesis coupled electron transport / response to hormone / cellular response to retinoic acid / muscle contraction / negative regulation of reactive oxygen species biosynthetic process / extrinsic apoptotic signaling pathway / tricarboxylic acid cycle / Neutrophil degranulation / cerebellum development / visual perception / reactive oxygen species metabolic process / aerobic respiration / regulation of mitochondrial membrane potential / neurogenesis / regulation of membrane potential / respiratory electron transport chain / kidney development / response to activity / fatty acid metabolic process / mitochondrion organization / hippocampus development / response to nicotine / sensory perception of sound / response to cocaine / electron transport chain / mitochondrial membrane / brain development / multicellular organism growth Similarity search - Function | |||||||||
Biological species | ![]() ![]() | |||||||||
Method | ELECTRON MICROSCOPY / single particle reconstruction / cryo EM / Resolution: 4.2 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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PDBx/mmCIF format | ![]() | 2.3 MB | Display | ![]() |
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-Validation report
Summary document | ![]() | 4.5 MB | Display | ![]() |
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Full document | ![]() | 4.6 MB | Display | |
Data in XML | ![]() | 312.5 KB | Display | |
Data in CIF | ![]() | 472.2 KB | Display | |
Arichive directory | ![]() ![]() | HTTPS FTP |
-Related structure data
Related structure data | ![]() 35313MC ![]() 8iapC ![]() 8iaqC ![]() 8iarC ![]() 8ib4C ![]() 8ib5C ![]() 8ib6C ![]() 8ib7C ![]() 8ib9C ![]() 8ibaC ![]() 8ibbC ![]() 8ibcC ![]() 8ibdC ![]() 8ibeC ![]() 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 ... , 7 types, 7 molecules AHJKLMN
#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) |
#10: Protein | Mass: 18628.090 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) ![]() ![]() References: UniProt: P03925, NADH:ubiquinone reductase (H+-translocating) |
#11: Protein | Mass: 10609.619 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) ![]() ![]() References: UniProt: P03903, NADH:ubiquinone reductase (H+-translocating) |
#12: Protein | Mass: 68519.289 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) ![]() ![]() References: UniProt: P03921, NADH:ubiquinone reductase (H+-translocating) |
#13: Protein | Mass: 51915.535 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) ![]() ![]() References: UniProt: P03911, NADH:ubiquinone reductase (H+-translocating) |
#14: Protein | Mass: 38772.219 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) ![]() ![]() References: UniProt: P03893, NADH:ubiquinone reductase (H+-translocating) |
-NADH dehydrogenase [ubiquinone] iron-sulfur protein ... , 7 types, 7 molecules BCDIQRe
#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) |
#17: Protein | Mass: 19814.725 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) ![]() ![]() |
#18: Protein | Mass: 13041.828 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Details: (ZN) / Source: (natural) ![]() ![]() |
#30: Protein | Mass: 12675.772 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) |
#44: Protein | Mass: 11833.504 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) ![]() ![]() |
-Protein , 4 types, 7 molecules GTUACAcADAd
#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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#20: Protein | Mass: 17390.289 Da / Num. of mol.: 2 / Source method: isolated from a natural source / Source: (natural) ![]() ![]() #47: Protein | Mass: 43240.305 Da / Num. of mol.: 2 / Source method: isolated from a natural source / Source: (natural) ![]() ![]() #48: Protein | Mass: 35374.652 Da / Num. of mol.: 2 / Source method: isolated from a natural source / Source: (natural) ![]() ![]() |
-NADH dehydrogenase [ubiquinone] 1 alpha subcomplex subunit ... , 12 types, 12 molecules OPSVWXYZabqr
#15: Protein | Mass: 40657.375 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) ![]() ![]() |
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#16: Protein | Mass: 42588.129 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) ![]() ![]() |
#19: Protein | Mass: 10932.675 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) ![]() ![]() |
#21: Protein | Mass: 13380.719 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) ![]() ![]() |
#22: Protein | Mass: 15311.858 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) ![]() ![]() |
#23: Protein | Mass: 20025.127 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) ![]() ![]() |
#24: Protein | Mass: 15130.416 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) ![]() ![]() |
#25: Protein | Mass: 16881.588 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) ![]() ![]() |
#26: Protein | Mass: 8149.524 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) ![]() ![]() |
#27: Protein | Mass: 9338.867 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) ![]() ![]() |
#42: Protein | Mass: 17112.416 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) ![]() ![]() |
#43: Protein | Mass: 12595.592 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) ![]() ![]() |
-NADH dehydrogenase [ubiquinone] 1 subunit ... , 2 types, 2 molecules cd
#28: Protein | Mass: 8636.023 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) ![]() ![]() |
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#29: Protein | Mass: 14185.692 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) ![]() ![]() |
-NADH dehydrogenase [ubiquinone] 1 beta subcomplex subunit ... , 11 types, 11 molecules fghijklmnop
#31: Protein | Mass: 6965.109 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) ![]() ![]() |
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#32: Protein | Mass: 17463.727 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) ![]() ![]() |
#33: Protein | Mass: 21742.197 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) ![]() ![]() |
#34: Protein | Mass: 15540.085 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) ![]() ![]() |
#35: Protein | Mass: 11982.437 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) ![]() ![]() |
#36: Protein | Mass: 11714.240 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) ![]() ![]() |
#37: Protein | Mass: 21903.828 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) ![]() ![]() |
#38: Protein | Mass: 15105.287 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) ![]() ![]() |
#39: Protein | Mass: 22020.123 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) ![]() ![]() |
#40: Protein | Mass: 16360.804 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) ![]() ![]() |
#41: Protein | Mass: 21054.832 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) ![]() ![]() |
-Cytochrome b-c1 complex subunit ... , 8 types, 18 molecules AAAaABAbAEAIAeAiAFAfAGAgAHAhAJAjAKAk
#45: Protein | Mass: 52910.594 Da / Num. of mol.: 2 / Source method: isolated from a natural source / Source: (natural) ![]() ![]() #46: Protein | Mass: 48289.730 Da / Num. of mol.: 2 / Source method: isolated from a natural source / Source: (natural) ![]() ![]() #49: Protein | Mass: 29406.635 Da / Num. of mol.: 4 / Source method: isolated from a natural source / Source: (natural) ![]() ![]() #50: Protein | Mass: 13587.532 Da / Num. of mol.: 2 / Source method: isolated from a natural source / Source: (natural) ![]() ![]() #51: Protein | Mass: 9783.245 Da / Num. of mol.: 2 / Source method: isolated from a natural source / Source: (natural) ![]() ![]() #52: Protein | Mass: 10452.694 Da / Num. of mol.: 2 / Source method: isolated from a natural source / Source: (natural) ![]() ![]() #53: Protein | Mass: 7457.526 Da / Num. of mol.: 2 / Source method: isolated from a natural source / Source: (natural) ![]() ![]() #54: Protein | Mass: 6546.627 Da / Num. of mol.: 2 / Source method: isolated from a natural source / Source: (natural) ![]() ![]() |
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-Non-polymers , 16 types, 61 molecules 






























#55: Chemical | ChemComp-3PE / #56: Chemical | ChemComp-CDL / #57: Chemical | ChemComp-SF4 / #58: Chemical | ChemComp-UQ1 / | #59: Chemical | #60: Chemical | ChemComp-FMN / | #61: Chemical | ChemComp-UQ9 / | #62: Chemical | ChemComp-PC1 / #63: Chemical | ChemComp-ADP / | #64: Chemical | ChemComp-NDP / | #65: Chemical | ChemComp-ZN / | #66: Chemical | #67: Chemical | ChemComp-HEM / #68: Chemical | #69: Chemical | #70: Chemical | |
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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-#54 / 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 |
Specimen support | Grid material: GRAPHENE OXIDE |
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 | Electron dose: 46.6 e/Å2 / Film or detector model: GATAN K3 (6k x 4k) |
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Processing
CTF correction | Type: NONE |
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3D reconstruction | Resolution: 4.2 Å / Resolution method: FSC 0.143 CUT-OFF / Num. of particles: 28091 / Symmetry type: POINT |