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Yorodumi- EMDB-35355: Respiratory complex CIII2, focus-refined of type I, PERK -/- mous... -
+Open data
-Basic information
Entry | Database: EMDB / ID: EMD-35355 | |||||||||
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Title | Respiratory complex CIII2, focus-refined of type I, PERK -/- mouse under cold temperature | |||||||||
Map data | Focus-refined map, PERK -/-, CIII2, Cold Acclimated, Type I of Respiratory Supercomplex | |||||||||
Sample |
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Keywords | Respiratory complex / Respiratory supercomplex / ELECTRON TRANSPORT | |||||||||
Function / homology | Function and homology information Complex III assembly / subthalamus development / pons development / cerebellar Purkinje cell layer development / pyramidal neuron development / Respiratory electron transport / response to mercury ion / mitochondrial respiratory chain complex III assembly / thalamus development / respiratory chain complex III ...Complex III assembly / subthalamus development / pons development / cerebellar Purkinje cell layer development / pyramidal neuron development / Respiratory electron transport / response to mercury ion / mitochondrial respiratory chain complex III assembly / thalamus development / respiratory chain complex III / Mitochondrial protein degradation / : / : / response to alkaloid / quinol-cytochrome-c reductase / response to copper ion / response to glucagon / ubiquinol-cytochrome-c reductase activity / cellular respiration / midbrain development / hypothalamus development / mitochondrial electron transport, ubiquinol to cytochrome c / response to cobalamin / electron transport coupled proton transport / response to hyperoxia / animal organ regeneration / response to cadmium ion / response to hormone / respiratory electron transport chain / response to activity / hippocampus development / mitochondrial membrane / metalloendopeptidase activity / 2 iron, 2 sulfur cluster binding / response to toxic substance / response to calcium ion / myelin sheath / response to ethanol / mitochondrial inner membrane / oxidoreductase activity / response to hypoxia / response to xenobiotic stimulus / ubiquitin protein ligase binding / heme binding / protein-containing complex binding / protein-containing complex / mitochondrion / proteolysis / nucleoplasm / membrane / metal ion binding Similarity search - Function | |||||||||
Biological species | Mus musculus (house mouse) | |||||||||
Method | single particle reconstruction / cryo EM / Resolution: 4.1 Å | |||||||||
Authors | Shin Y-C / Liao M | |||||||||
Funding support | United States, 2 items
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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
Supplemental images |
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-Downloads & links
-EMDB archive
Map data | emd_35355.map.gz | 470 MB | EMDB map data format | |
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Header (meta data) | emd-35355-v30.xml emd-35355.xml | 26.1 KB 26.1 KB | Display Display | EMDB header |
FSC (resolution estimation) | emd_35355_fsc.xml | 17 KB | Display | FSC data file |
Images | emd_35355.png | 97.9 KB | ||
Masks | emd_35355_msk_1.map | 512 MB | Mask map | |
Filedesc metadata | emd-35355.cif.gz | 7.6 KB | ||
Others | emd_35355_half_map_1.map.gz emd_35355_half_map_2.map.gz | 462 MB 462 MB | ||
Archive directory | http://ftp.pdbj.org/pub/emdb/structures/EMD-35355 ftp://ftp.pdbj.org/pub/emdb/structures/EMD-35355 | HTTPS FTP |
-Validation report
Summary document | emd_35355_validation.pdf.gz | 1.1 MB | Display | EMDB validaton report |
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Full document | emd_35355_full_validation.pdf.gz | 1.1 MB | Display | |
Data in XML | emd_35355_validation.xml.gz | 26 KB | Display | |
Data in CIF | emd_35355_validation.cif.gz | 34.1 KB | Display | |
Arichive directory | https://ftp.pdbj.org/pub/emdb/validation_reports/EMD-35355 ftp://ftp.pdbj.org/pub/emdb/validation_reports/EMD-35355 | HTTPS FTP |
-Related structure data
Related structure data | 8ic5MC 8iaoC 8iapC 8iaqC 8iarC 8ib4C 8ib5C 8ib6C 8ib7C 8ib9C 8ibaC 8ibbC 8ibcC 8ibdC 8ibeC 8ibfC 8ibgC 8ic4C 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 (ref.) |
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Similar structure data | Similarity search - Function & homologyF&H Search |
-Links
EMDB pages | EMDB (EBI/PDBe) / EMDataResource |
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Related items in Molecule of the Month |
-Map
File | Download / File: emd_35355.map.gz / Format: CCP4 / Size: 512 MB / Type: IMAGE STORED AS FLOATING POINT NUMBER (4 BYTES) | ||||||||||||||||||||||||||||||||||||
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Annotation | Focus-refined map, PERK -/-, CIII2, Cold Acclimated, Type I of Respiratory Supercomplex | ||||||||||||||||||||||||||||||||||||
Projections & slices | Image control
Images are generated by Spider. | ||||||||||||||||||||||||||||||||||||
Voxel size | X=Y=Z: 0.83 Å | ||||||||||||||||||||||||||||||||||||
Density |
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Symmetry | Space group: 1 | ||||||||||||||||||||||||||||||||||||
Details | EMDB XML:
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-Supplemental data
-Mask #1
File | emd_35355_msk_1.map | ||||||||||||
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Projections & Slices |
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Density Histograms |
-Half map: Focus-refined map, PERK -/-, CIII2, Cold Acclimated, Type...
File | emd_35355_half_map_1.map | ||||||||||||
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Annotation | Focus-refined map, PERK -/-, CIII2, Cold Acclimated, Type I of Respiratory Supercomplex | ||||||||||||
Projections & Slices |
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Density Histograms |
-Half map: Focus-refined map, PERK -/-, CIII2, Cold Acclimated, Type...
File | emd_35355_half_map_2.map | ||||||||||||
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Annotation | Focus-refined map, PERK -/-, CIII2, Cold Acclimated, Type I of Respiratory Supercomplex | ||||||||||||
Projections & Slices |
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Density Histograms |
-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: 5-(3,7,11,15,19,23-HEXAMETHYL-TETRACOSA-2,6,10,14,18,22-HEXAENYL)...
+Macromolecule #13: HEME C
+Macromolecule #14: CARDIOLIPIN
+Macromolecule #15: 1,2-Distearoyl-sn-glycerophosphoethanolamine
+Macromolecule #16: UBIQUINONE-10
-Experimental details
-Structure determination
Method | cryo EM |
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Processing | single particle reconstruction |
Aggregation state | particle |
-Sample preparation
Concentration | 0.33 mg/mL |
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Buffer | pH: 8 |
Vitrification | Cryogen name: ETHANE |
-Electron microscopy
Microscope | FEI TITAN KRIOS |
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Image recording | Film or detector model: GATAN K3 (6k x 4k) / Average electron dose: 50.2 e/Å2 |
Electron beam | Acceleration voltage: 300 kV / Electron source: FIELD EMISSION GUN |
Electron optics | Illumination mode: OTHER / Imaging mode: OTHER / Nominal defocus max: 2.0 µm / Nominal defocus min: 1.0 µm |
Experimental equipment | Model: Titan Krios / Image courtesy: FEI Company |