[English] 日本語
Yorodumi- PDB-7aqr: Cryo-EM structure of Arabidopsis thaliana Complex-I (peripheral arm) -
+Open data
-Basic information
Entry | Database: PDB / ID: 7aqr | ||||||
---|---|---|---|---|---|---|---|
Title | Cryo-EM structure of Arabidopsis thaliana Complex-I (peripheral arm) | ||||||
Components |
| ||||||
Keywords | ELECTRON TRANSPORT / Complex-I | ||||||
Function / homology | Function and homology information cold acclimation / photorespiration / embryo development ending in seed dormancy / response to osmotic stress / plastid / cobalt ion binding / NADH:ubiquinone reductase (H+-translocating) / respiratory chain complex I / : / mitochondrial respiratory chain complex I assembly ...cold acclimation / photorespiration / embryo development ending in seed dormancy / response to osmotic stress / plastid / cobalt ion binding / NADH:ubiquinone reductase (H+-translocating) / respiratory chain complex I / : / mitochondrial respiratory chain complex I assembly / mitochondrial electron transport, NADH to ubiquinone / acyl carrier activity / NADH dehydrogenase (ubiquinone) activity / ATP synthesis coupled electron transport / quinone binding / respiratory electron transport chain / proton transmembrane transport / chloroplast / mitochondrial membrane / electron transport chain / 2 iron, 2 sulfur cluster binding / NAD binding / FMN binding / 4 iron, 4 sulfur cluster binding / mitochondrial matrix / mitochondrion / zinc ion binding / extracellular region / nucleus / metal ion binding / plasma membrane / cytosol Similarity search - Function | ||||||
Biological species | Arabidopsis thaliana (thale cress) | ||||||
Method | ELECTRON MICROSCOPY / single particle reconstruction / cryo EM / Resolution: 2.91 Å | ||||||
Authors | Klusch, N. / Kuehlbrandt, W. / Yildiz, O. | ||||||
Funding support | Germany, 1items
| ||||||
Citation | Journal: Plant Cell / Year: 2021 Title: 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. | ||||||
History |
|
-Structure visualization
Movie |
Movie viewer |
---|---|
Structure viewer | Molecule: MolmilJmol/JSmol |
-Downloads & links
-Download
PDBx/mmCIF format | 7aqr.cif.gz | 593.8 KB | Display | PDBx/mmCIF format |
---|---|---|---|---|
PDB format | pdb7aqr.ent.gz | 481.9 KB | Display | PDB format |
PDBx/mmJSON format | 7aqr.json.gz | Tree view | PDBx/mmJSON format | |
Others | Other downloads |
-Validation report
Summary document | 7aqr_validation.pdf.gz | 1.3 MB | Display | wwPDB validaton report |
---|---|---|---|---|
Full document | 7aqr_full_validation.pdf.gz | 1.4 MB | Display | |
Data in XML | 7aqr_validation.xml.gz | 108.7 KB | Display | |
Data in CIF | 7aqr_validation.cif.gz | 162.4 KB | Display | |
Arichive directory | https://data.pdbj.org/pub/pdb/validation_reports/aq/7aqr ftp://data.pdbj.org/pub/pdb/validation_reports/aq/7aqr | HTTPS FTP |
-Related structure data
Related structure data | 11873MC 7aqqC 7aqwC 7ar7C 7ar8C 7ar9C 7arbC 7arcC 7ardC M: map data used to model this data C: citing same article (ref.) |
---|---|
Similar structure data |
-Links
-Assembly
Deposited unit |
|
---|---|
1 |
|
-Components
-NADH dehydrogenase [ubiquinone] iron-sulfur protein ... , 6 types, 6 molecules BCGIQR
#1: Protein | Mass: 24071.949 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Arabidopsis thaliana (thale cress) References: UniProt: Q42577, NADH:ubiquinone reductase (H+-translocating) |
---|---|
#2: Protein | Mass: 22910.910 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Arabidopsis thaliana (thale cress) References: UniProt: Q95748, NADH:ubiquinone reductase (H+-translocating) |
#6: Protein | Mass: 81619.367 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Arabidopsis thaliana (thale cress) References: UniProt: Q9FGI6, NADH:ubiquinone reductase (H+-translocating) |
#7: Protein | Mass: 25536.801 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Arabidopsis thaliana (thale cress) References: UniProt: Q42599, NADH:ubiquinone reductase (H+-translocating) |
#9: Protein | Mass: 17160.445 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Arabidopsis thaliana (thale cress) / References: UniProt: Q9FJW4 |
#10: Protein | Mass: 12251.122 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Arabidopsis thaliana (thale cress) / References: UniProt: Q9M9M6 |
-Protein , 3 types, 3 molecules DUr
#3: Protein | Mass: 45036.844 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Arabidopsis thaliana (thale cress) / References: UniProt: A0A2P2CLH2 |
---|---|
#12: Protein | Mass: 14183.111 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Arabidopsis thaliana (thale cress) / References: UniProt: O80800 |
#17: Protein | Mass: 15060.062 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Arabidopsis thaliana (thale cress) / References: UniProt: Q9SD78 |
-NADH dehydrogenase [ubiquinone] flavoprotein ... , 2 types, 2 molecules EF
#4: Protein | Mass: 28423.607 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Arabidopsis thaliana (thale cress) References: UniProt: O22769, NADH:ubiquinone reductase (H+-translocating) |
---|---|
#5: Protein | Mass: 53522.418 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Arabidopsis thaliana (thale cress) References: UniProt: Q9FNN5, NADH:ubiquinone reductase (H+-translocating) |
-NADH dehydrogenase [ubiquinone] 1 alpha subcomplex subunit ... , 4 types, 4 molecules PSWZ
#8: Protein | Mass: 43988.652 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Arabidopsis thaliana (thale cress) / References: UniProt: Q9SK66 |
---|---|
#11: Protein | Mass: 10865.765 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Arabidopsis thaliana (thale cress) / References: UniProt: Q9FIJ2 |
#14: Protein | Mass: 15102.261 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Arabidopsis thaliana (thale cress) / References: UniProt: Q9LHI0 |
#15: Protein | Mass: 16145.584 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Arabidopsis thaliana (thale cress) / References: UniProt: Q8RWA7 |
-Probable NADH dehydrogenase [ubiquinone] 1 alpha subcomplex subunit ... , 2 types, 2 molecules Vq
#13: Protein | Mass: 19201.906 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Arabidopsis thaliana (thale cress) / References: UniProt: Q9FLX7 |
---|---|
#16: Protein | Mass: 18346.736 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Arabidopsis thaliana (thale cress) / References: UniProt: Q9M9M9 |
-Non-polymers , 6 types, 12 molecules
#18: Chemical | ChemComp-SF4 / #19: Chemical | #20: Chemical | ChemComp-FMN / | #21: Chemical | ChemComp-NDP / | #22: Chemical | ChemComp-ZN / | #23: Chemical | ChemComp-8Q1 / | |
---|
-Details
Has ligand of interest | N |
---|
-Experimental details
-Experiment
Experiment | Method: ELECTRON MICROSCOPY |
---|---|
EM experiment | Aggregation state: PARTICLE / 3D reconstruction method: single particle reconstruction |
-Sample preparation
Component | Name: Arabidopsis complex I - peripheral arm / Type: COMPLEX / Entity ID: #1-#17 / Source: NATURAL |
---|---|
Source (natural) | Organism: Arabidopsis thaliana (thale cress) |
Buffer solution | pH: 7.8 |
Specimen | Embedding applied: NO / Shadowing applied: NO / Staining applied: NO / Vitrification applied: YES |
Vitrification | Cryogen name: ETHANE |
-Electron microscopy imaging
Experimental equipment | Model: Titan Krios / Image courtesy: FEI Company |
---|---|
Microscopy | Model: FEI TITAN KRIOS |
Electron gun | Electron source: FIELD EMISSION GUN / Accelerating voltage: 300 kV / Illumination mode: FLOOD BEAM |
Electron lens | Mode: BRIGHT FIELD |
Image recording | Electron dose: 43 e/Å2 / Film or detector model: GATAN K3 (6k x 4k) |
-Processing
Software | Name: PHENIX / Version: 1.19.2_4158: / Classification: refinement | ||||||||||||||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
EM software | Name: RELION / Version: 3 / Category: 3D reconstruction | ||||||||||||||||||||||||
CTF correction | Type: PHASE FLIPPING AND AMPLITUDE CORRECTION | ||||||||||||||||||||||||
3D reconstruction | Resolution: 2.91 Å / Resolution method: FSC 0.143 CUT-OFF / Num. of particles: 459177 / Symmetry type: POINT | ||||||||||||||||||||||||
Refinement | Cross valid method: NONE Stereochemistry target values: GeoStd + Monomer Library + CDL v1.2 | ||||||||||||||||||||||||
Displacement parameters | Biso mean: 60.73 Å2 | ||||||||||||||||||||||||
Refine LS restraints |
|