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Yorodumi- PDB-8xnz: Respiratory complex Peripheral Arm of CI, close form A, focus-ref... -
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Basic information
| Entry | Database: PDB / ID: 8xnz | |||||||||
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| Title | Respiratory complex Peripheral Arm of CI, close form A, focus-refined map of type I, PERK -/- mouse under Cold Acclimation | |||||||||
Components |
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Keywords | ELECTRON TRANSPORT / Respiratory complex / Respiratory supercomplex | |||||||||
| Function / homology | Function and homology informationresponse to injury involved in regulation of muscle adaptation / Protein lipoylation / Mitochondrial Fatty Acid Beta-Oxidation / Complex I biogenesis / RHOG GTPase cycle / Respiratory electron transport / protein insertion into mitochondrial inner membrane / blastocyst hatching / respiratory system process / psychomotor behavior ...response to injury involved in regulation of muscle adaptation / Protein lipoylation / Mitochondrial Fatty Acid Beta-Oxidation / Complex I biogenesis / RHOG GTPase cycle / Respiratory electron transport / protein insertion into mitochondrial inner membrane / blastocyst hatching / respiratory system process / psychomotor behavior / Mitochondrial protein degradation / cellular response to oxygen levels / response to light intensity / mesenchymal stem cell proliferation / respiratory chain complex / reproductive system development / mitochondrial [2Fe-2S] assembly complex / iron-sulfur cluster assembly complex / mitochondrial large ribosomal subunit binding / gliogenesis / mesenchymal stem cell differentiation / circulatory system development / cardiac muscle tissue development / neural precursor cell proliferation / [2Fe-2S] cluster assembly / adult walking behavior / oxygen sensor activity / response to hydroperoxide / cellular response to glucocorticoid stimulus / stem cell division / NADH dehydrogenase activity / iron-sulfur cluster assembly / mitochondrial ATP synthesis coupled electron transport / dopamine metabolic process / NADH:ubiquinone reductase (H+-translocating) / adult behavior / mitochondrial respiratory chain complex I assembly / mitochondrial electron transport, NADH to ubiquinone / proton motive force-driven mitochondrial ATP synthesis / respiratory chain complex I / positive regulation of execution phase of apoptosis / NADH dehydrogenase (ubiquinone) activity / neuron development / quinone binding / cellular response to interferon-beta / ATP synthesis coupled electron transport / extrinsic apoptotic signaling pathway / cellular response to retinoic acid / tricarboxylic acid cycle / neurogenesis / visual perception / muscle contraction / reactive oxygen species metabolic process / aerobic respiration / regulation of mitochondrial membrane potential / respiratory electron transport chain / mitochondrion organization / DNA damage response, signal transduction by p53 class mediator / kidney development / sensory perception of sound / monooxygenase activity / fatty acid metabolic process / circadian rhythm / brain development / mitochondrial membrane / mitochondrial intermembrane space / 2 iron, 2 sulfur cluster binding / cognition / multicellular organism growth / NAD binding / positive regulation of protein catabolic process / fatty acid biosynthetic process / cellular senescence / FMN binding / nervous system development / myelin sheath / 4 iron, 4 sulfur cluster binding / response to oxidative stress / neuron apoptotic process / gene expression / response to hypoxia / electron transfer activity / mitochondrial inner membrane / nuclear body / mitochondrial matrix / response to xenobiotic stimulus / inflammatory response / innate immune response / negative regulation of DNA-templated transcription / neuronal cell body / dendrite / ubiquitin protein ligase binding / protein-containing complex binding / structural molecule activity / mitochondrion / nucleoplasm / ATP binding / metal ion binding / nucleus / cytoplasm Similarity search - Function | |||||||||
| Biological species | ![]() | |||||||||
| Method | ELECTRON MICROSCOPY / single particle reconstruction / cryo EM / Resolution: 3.3 Å | |||||||||
Authors | Shin, Y.-C. / Liao, M. | |||||||||
| Funding support | United States, 2items
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Citation | Journal: Cell / Year: 2024Title: 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. | |||||||||
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Structure visualization
| Structure viewer | Molecule: Molmil Jmol/JSmol |
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Downloads & links
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Download
| PDBx/mmCIF format | 8xnz.cif.gz | 786 KB | Display | PDBx/mmCIF format |
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| PDB format | pdb8xnz.ent.gz | 623.7 KB | Display | PDB format |
| PDBx/mmJSON format | 8xnz.json.gz | Tree view | PDBx/mmJSON format | |
| Others | Other downloads |
-Validation report
| Summary document | 8xnz_validation.pdf.gz | 2.4 MB | Display | wwPDB validaton report |
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| Full document | 8xnz_full_validation.pdf.gz | 2.4 MB | Display | |
| Data in XML | 8xnz_validation.xml.gz | 125.9 KB | Display | |
| Data in CIF | 8xnz_validation.cif.gz | 191.4 KB | Display | |
| Arichive directory | https://data.pdbj.org/pub/pdb/validation_reports/xn/8xnz ftp://data.pdbj.org/pub/pdb/validation_reports/xn/8xnz | HTTPS FTP |
-Related structure data
| Related structure data | ![]() 38520MC ![]() 8iaoC ![]() 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 ![]() 8xo0C M: map data used to model this data C: citing same article ( |
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| Similar structure data | Similarity search - Function & homology F&H Search |
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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 , 10 types, 19 molecules 


















| #24: Chemical | ChemComp-SF4 / #25: Chemical | #26: Chemical | #27: Chemical | #28: Chemical | ChemComp-FMN / | #29: Chemical | #30: Chemical | ChemComp-NDP / | #31: Chemical | ChemComp-ZN / | #32: Chemical | ChemComp-EHZ / ~{ | #33: 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: 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: OTHER |
| Electron lens | Mode: OTHER / Nominal defocus max: 2000 nm / Nominal defocus min: 1000 nm |
| Image recording | Electron dose: 50.2 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: 3.3 Å / Resolution method: FSC 0.143 CUT-OFF / Num. of particles: 19179 / Symmetry type: POINT |
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FIELD EMISSION GUN