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Yorodumi- EMDB-35334: Respiratory complex CIII2, focus-refined of type IA, Wild type mo... -
+ Open data
Open data
- Basic information
Basic information
| Entry |  | |||||||||
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| Title | Respiratory complex CIII2, focus-refined of type IA, Wild type mouse under cold temperature | |||||||||
|  Map data | Focus-refined map, CIII2, Cold Acclimated, Type IA of Respiratory Supercomplex | |||||||||
|  Sample | 
 | |||||||||
|  Keywords | Respiratory complex / Respiratory supercomplex / ELECTRON TRANSPORT | |||||||||
| Function / homology |  Function and homology information response to D-galactosamine / Complex III assembly / response to mercury ion / subthalamus development / pons development / Respiratory electron transport / response to cobalamin / cerebellar Purkinje cell layer development / mitochondrial respiratory chain complex III assembly / pyramidal neuron development ...response to D-galactosamine / Complex III assembly / response to mercury ion / subthalamus development / pons development / Respiratory electron transport / response to cobalamin / cerebellar Purkinje cell layer development / mitochondrial respiratory chain complex III assembly / pyramidal neuron development / response to alkaloid / cellular respiration / thalamus development / Mitochondrial protein degradation / respiratory chain complex III / quinol-cytochrome-c reductase / response to glucagon / quinol-cytochrome-c reductase activity / response to copper ion / mitochondrial electron transport, ubiquinol to cytochrome c / hypothalamus development / midbrain development / electron transport coupled proton transport / animal organ regeneration / response to hyperoxia / response to cadmium ion / response to hormone / response to activity / respiratory electron transport chain / hippocampus development / response to calcium ion / metalloendopeptidase activity / 2 iron, 2 sulfur cluster binding / response to toxic substance / myelin sheath / response to ethanol / response to hypoxia / mitochondrial inner membrane / response to xenobiotic stimulus / heme binding / ubiquitin protein ligase binding / protein-containing complex binding / mitochondrion / proteolysis / nucleoplasm / metal ion binding / membrane Similarity search - Function | |||||||||
| Biological species |   Mus musculus (house mouse) | |||||||||
| Method | single particle reconstruction / cryo EM / Resolution: 3.4 Å | |||||||||
|  Authors | Shin Y-C / Liao M | |||||||||
| Funding support |  United States, 2 items 
 | |||||||||
|  Citation |  Journal: Cell / Year: 2024 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 visualization
| Supplemental images | 
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- Downloads & links
Downloads & links
-EMDB archive
| Map data |  emd_35334.map.gz | 202.5 MB |  EMDB map data format | |
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| Header (meta data) |  emd-35334-v30.xml  emd-35334.xml | 26.8 KB 26.8 KB | Display Display |  EMDB header | 
| FSC (resolution estimation) |  emd_35334_fsc.xml | 12.7 KB | Display |  FSC data file | 
| Images |  emd_35334.png | 107.7 KB | ||
| Masks |  emd_35334_msk_1.map | 216 MB |  Mask map | |
| Filedesc metadata |  emd-35334.cif.gz | 7.7 KB | ||
| Others |  emd_35334_half_map_1.map.gz  emd_35334_half_map_2.map.gz | 198.8 MB 198.8 MB | ||
| Archive directory |  http://ftp.pdbj.org/pub/emdb/structures/EMD-35334  ftp://ftp.pdbj.org/pub/emdb/structures/EMD-35334 | HTTPS FTP | 
-Validation report
| Summary document |  emd_35334_validation.pdf.gz | 1 MB | Display |  EMDB validaton report | 
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| Full document |  emd_35334_full_validation.pdf.gz | 1 MB | Display | |
| Data in XML |  emd_35334_validation.xml.gz | 21.6 KB | Display | |
| Data in CIF |  emd_35334_validation.cif.gz | 28.1 KB | Display | |
| Arichive directory |  https://ftp.pdbj.org/pub/emdb/validation_reports/EMD-35334  ftp://ftp.pdbj.org/pub/emdb/validation_reports/EMD-35334 | HTTPS FTP | 
-Related structure data
| Related structure data |  8ib7MC  8iaoC  8iapC  8iaqC  8iarC  8ib4C  8ib5C  8ib6C  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: atomic model generated by this map C: citing same article ( | 
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| Similar structure data | Similarity search - Function & homology  F&H Search | 
- Links
Links
| EMDB pages |  EMDB (EBI/PDBe) /  EMDataResource | 
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| Related items in Molecule of the Month | 
- Map
Map
| File |  Download / File: emd_35334.map.gz / Format: CCP4 / Size: 216 MB / Type: IMAGE STORED AS FLOATING POINT NUMBER (4 BYTES) | ||||||||||||||||||||||||||||||||||||
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| Annotation | Focus-refined map, CIII2, Cold Acclimated, Type IA of Respiratory Supercomplex | ||||||||||||||||||||||||||||||||||||
| Projections & slices | Image control
 
 Images are generated by Spider. | ||||||||||||||||||||||||||||||||||||
| Voxel size | X=Y=Z: 1.1 Å | ||||||||||||||||||||||||||||||||||||
| Density | 
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| Symmetry | Space group: 1 | ||||||||||||||||||||||||||||||||||||
| Details | EMDB XML: 
 | 
-Supplemental data
-Mask #1
| File |  emd_35334_msk_1.map | ||||||||||||
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| Projections & Slices | 
 | ||||||||||||
| Density Histograms | 
-Half map: Focus-refined map, CIII2, Cold Acclimated, Type IA of...
| File | emd_35334_half_map_1.map | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Annotation | Focus-refined map, CIII2, Cold Acclimated, Type IA of Respiratory Supercomplex | ||||||||||||
| Projections & Slices | 
 | ||||||||||||
| Density Histograms | 
-Half map: Focus-refined map, CIII2, Cold Acclimated, Type IA of...
| File | emd_35334_half_map_2.map | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Annotation | Focus-refined map, CIII2, Cold Acclimated, Type IA of Respiratory Supercomplex | ||||||||||||
| Projections & Slices | 
 | ||||||||||||
| Density Histograms | 
- Sample components
Sample components
+Entire : Respiratory Supercomplex CI:CIII2
+Supramolecule #1: Respiratory Supercomplex CI:CIII2
+Macromolecule #1: Cytochrome b-c1 complex subunit 1, mitochondrial
+Macromolecule #2: Cytochrome b-c1 complex subunit 2, mitochondrial
+Macromolecule #3: Cytochrome b
+Macromolecule #4: Cytochrome c1, heme protein, mitochondrial
+Macromolecule #5: Cytochrome b-c1 complex subunit Rieske, mitochondrial
+Macromolecule #6: Cytochrome b-c1 complex subunit 7
+Macromolecule #7: Cytochrome b-c1 complex subunit 8
+Macromolecule #8: Cytochrome b-c1 complex subunit 6, mitochondrial
+Macromolecule #9: Cytochrome b-c1 complex subunit 9
+Macromolecule #10: Cytochrome b-c1 complex subunit 10
+Macromolecule #11: PROTOPORPHYRIN IX CONTAINING FE
+Macromolecule #12: 1,2-Distearoyl-sn-glycerophosphoethanolamine
+Macromolecule #13: UBIQUINONE-10
+Macromolecule #14: 5-(3,7,11,15,19,23-HEXAMETHYL-TETRACOSA-2,6,10,14,18,22-HEXAENYL)...
+Macromolecule #15: CARDIOLIPIN
+Macromolecule #16: HEME C
+Macromolecule #17: 1,2-DIACYL-GLYCEROL-3-SN-PHOSPHATE
-Experimental details
-Structure determination
| Method | cryo EM | 
|---|---|
|  Processing | single particle reconstruction | 
| Aggregation state | particle | 
- Sample preparation
Sample preparation
| Concentration | 0.33 mg/mL | 
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| Buffer | pH: 8 | 
| Vitrification | Cryogen name: ETHANE | 
- Electron microscopy
Electron microscopy
| Microscope | FEI TALOS ARCTICA | 
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| Image recording | #0 - Image recording ID: 1 / #0 - Film or detector model: GATAN K3 (6k x 4k) / #0 - Average electron dose: 46.1 e/Å2 / #1 - Image recording ID: 2 / #1 - Film or detector model: GATAN K3 (6k x 4k) / #1 - Average electron dose: 45.9 e/Å2 | 
| Electron beam | Acceleration voltage: 200 kV / Electron source:  FIELD EMISSION GUN | 
| Electron optics | Illumination mode: OTHER / Imaging mode: OTHER / Nominal defocus max: 2.2 µm / Nominal defocus min: 1.0 µm | 
| Experimental equipment |  Model: Talos Arctica / Image courtesy: FEI Company | 
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