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Yorodumi- EMDB-11874: Cryo-EM structure of Arabidopsis thaliana Complex-I (membrane tip) -
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Open data
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Basic information
| Entry | Database: EMDB / ID: EMD-11874 | |||||||||
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| Title | Cryo-EM structure of Arabidopsis thaliana Complex-I (membrane tip) | |||||||||
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Keywords | Complex-I / ELECTRON TRANSPORT | |||||||||
| Function / homology | Function and homology informationphotorespiration / plant-type vacuole / plastid / acyl carrier activity / NADH:ubiquinone reductase (H+-translocating) / mitochondrial electron transport, NADH to ubiquinone / respiratory chain complex I / NADH dehydrogenase (ubiquinone) activity / ATP synthesis coupled electron transport / proton transmembrane transport ...photorespiration / plant-type vacuole / plastid / acyl carrier activity / NADH:ubiquinone reductase (H+-translocating) / mitochondrial electron transport, NADH to ubiquinone / respiratory chain complex I / NADH dehydrogenase (ubiquinone) activity / ATP synthesis coupled electron transport / proton transmembrane transport / electron transport chain / mitochondrial membrane / mitochondrial intermembrane space / fatty acid biosynthetic process / carbohydrate metabolic process / mitochondrial inner membrane / mitochondrial matrix / mitochondrion / membrane / plasma membrane / cytosol Similarity search - Function | |||||||||
| Biological species | ![]() | |||||||||
| Method | single particle reconstruction / cryo EM / Resolution: 3.17 Å | |||||||||
Authors | Klusch N / Kuehlbrandt W | |||||||||
| Funding support | Germany, 1 items
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Citation | Journal: Plant Cell / Year: 2021Title: A ferredoxin bridge connects the two arms of plant mitochondrial complex I. Authors: Niklas Klusch / Jennifer Senkler / Özkan Yildiz / Werner Kühlbrandt / Hans-Peter Braun / ![]() Abstract: Mitochondrial complex I is the main site for electron transfer to the respiratory chain and generates much of the proton gradient across the inner mitochondrial membrane. Complex I is composed of two ...Mitochondrial complex I is the main site for electron transfer to the respiratory chain and generates much of the proton gradient across the inner mitochondrial membrane. Complex I is composed of two arms, which form a conserved L-shape. We report the structures of the intact, 47-subunit mitochondrial complex I from Arabidopsis thaliana and the 51-subunit complex I from the green alga Polytomella sp., both at around 2.9 Å resolution. In both complexes, a heterotrimeric γ-carbonic anhydrase domain is attached to the membrane arm on the matrix side. Two states are resolved in A. thaliana complex I, with different angles between the two arms and different conformations of the ND1 (NADH dehydrogenase subunit 1) loop near the quinol binding site. The angle appears to depend on a bridge domain, which links the peripheral arm to the membrane arm and includes an unusual ferredoxin. We propose that the bridge domain participates in regulating the activity of plant complex I. | |||||||||
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Structure visualization
| Movie |
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| Structure viewer | EM map: SurfView Molmil Jmol/JSmol |
| Supplemental images |
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Downloads & links
-EMDB archive
| Map data | emd_11874.map.gz | 33.3 MB | EMDB map data format | |
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| Header (meta data) | emd-11874-v30.xml emd-11874.xml | 28.9 KB 28.9 KB | Display Display | EMDB header |
| FSC (resolution estimation) | emd_11874_fsc.xml | 21.2 KB | Display | FSC data file |
| Images | emd_11874.png | 96.2 KB | ||
| Filedesc metadata | emd-11874.cif.gz | 7.7 KB | ||
| Others | emd_11874_half_map_1.map.gz emd_11874_half_map_2.map.gz | 533.1 MB 533.2 MB | ||
| Archive directory | http://ftp.pdbj.org/pub/emdb/structures/EMD-11874 ftp://ftp.pdbj.org/pub/emdb/structures/EMD-11874 | HTTPS FTP |
-Validation report
| Summary document | emd_11874_validation.pdf.gz | 667.9 KB | Display | EMDB validaton report |
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| Full document | emd_11874_full_validation.pdf.gz | 667.3 KB | Display | |
| Data in XML | emd_11874_validation.xml.gz | 27.8 KB | Display | |
| Data in CIF | emd_11874_validation.cif.gz | 36.9 KB | Display | |
| Arichive directory | https://ftp.pdbj.org/pub/emdb/validation_reports/EMD-11874 ftp://ftp.pdbj.org/pub/emdb/validation_reports/EMD-11874 | HTTPS FTP |
-Related structure data
| Related structure data | ![]() 7aqwMC ![]() 7aqqC ![]() 7aqrC ![]() 7ar7C ![]() 7ar8C ![]() 7ar9C ![]() 7arbC ![]() 7arcC ![]() 7ardC M: atomic model generated by this map C: citing same article ( |
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| Similar structure data |
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Links
| EMDB pages | EMDB (EBI/PDBe) / EMDataResource |
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| Related items in Molecule of the Month |
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Map
| File | Download / File: emd_11874.map.gz / Format: CCP4 / Size: 824 MB / Type: IMAGE STORED AS FLOATING POINT NUMBER (4 BYTES) | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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| Projections & slices | Image control
Images are generated by Spider. | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Voxel size | X=Y=Z: 0.837 Å | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Density |
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| Symmetry | Space group: 1 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Details | EMDB XML:
CCP4 map header:
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-Supplemental data
-Half map: #2
| File | emd_11874_half_map_1.map | ||||||||||||
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| Density Histograms |
-Half map: #1
| File | emd_11874_half_map_2.map | ||||||||||||
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Sample components
+Entire : Arabidopsis complex I - membrane tip
+Supramolecule #1: Arabidopsis complex I - membrane tip
+Macromolecule #1: NADH-ubiquinone oxidoreductase chain 5
+Macromolecule #2: NADH-ubiquinone oxidoreductase chain 4
+Macromolecule #3: Acyl carrier protein 1, mitochondrial
+Macromolecule #4: Transmembrane protein
+Macromolecule #5: ESSS subunit of NADH:ubiquinone oxidoreductase (Complex I) protein
+Macromolecule #6: P1
+Macromolecule #7: NADH dehydrogenase [ubiquinone] 1 beta subcomplex subunit 2
+Macromolecule #8: NADH dehydrogenase [ubiquinone] 1 beta subcomplex subunit 3-A
+Macromolecule #9: NADH dehydrogenase [ubiquinone] 1 beta subcomplex subunit 8, mito...
+Macromolecule #10: B15 -- 1 beta subcomplex subunit 4
+Macromolecule #11: NADH dehydrogenase [ubiquinone] 1 beta subcomplex subunit 9
+Macromolecule #12: NADH dehydrogenase [ubiquinone] 1 beta subcomplex subunit 7
+Macromolecule #13: NADH dehydrogenase [ubiquinone] 1 beta subcomplex subunit 10-B
+Macromolecule #14: PHOSPHATIDYLETHANOLAMINE
+Macromolecule #15: (7S)-4-HYDROXY-N,N,N-TRIMETHYL-9-OXO-7-[(PALMITOYLOXY)METHYL]-3,5...
+Macromolecule #16: S-[2-({N-[(2R)-2-hydroxy-3,3-dimethyl-4-(phosphonooxy)butanoyl]-b...
-Experimental details
-Structure determination
| Method | cryo EM |
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Processing | single particle reconstruction |
| Aggregation state | particle |
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Sample preparation
| Buffer | pH: 7.8 |
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| Vitrification | Cryogen name: ETHANE |
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Electron microscopy
| Microscope | FEI TITAN KRIOS |
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| Image recording | Film or detector model: GATAN K3 (6k x 4k) / Average electron dose: 43.0 e/Å2 |
| Electron beam | Acceleration voltage: 300 kV / Electron source: FIELD EMISSION GUN |
| Electron optics | Illumination mode: FLOOD BEAM / Imaging mode: BRIGHT FIELD |
| Experimental equipment | ![]() Model: Titan Krios / Image courtesy: FEI Company |
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Keywords
Authors
Germany, 1 items
Citation
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