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Open data
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Basic information
Entry | Database: PDB / ID: 9gbi | ||||||||||||||||||||||||||||||
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Title | Cryo-EM structure of Arabidopsis thaliana PSI-LHCI wild-type | ||||||||||||||||||||||||||||||
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![]() | PHOTOSYNTHESIS / PSI-LHCI / Arabidopsis thaliana / light harvesting / far-red absorption | ||||||||||||||||||||||||||||||
Function / homology | ![]() photosynthetic NADP+ reduction / photosystem I stabilization / chloroplast photosystem I / chloroplast stromal thylakoid / response to low light intensity stimulus / plastoglobule / response to high light intensity / chloroplast membrane / chloroplast thylakoid / photosynthesis, light harvesting in photosystem I ...photosynthetic NADP+ reduction / photosystem I stabilization / chloroplast photosystem I / chloroplast stromal thylakoid / response to low light intensity stimulus / plastoglobule / response to high light intensity / chloroplast membrane / chloroplast thylakoid / photosynthesis, light harvesting in photosystem I / thylakoid / chloroplast envelope / photosystem I reaction center / photosystem I / photosynthetic electron transport in photosystem I / photosystem I / plastid / chlorophyll binding / chloroplast thylakoid membrane / photosynthesis / response to cold / chloroplast / 4 iron, 4 sulfur cluster binding / electron transfer activity / oxidoreductase activity / protein stabilization / protein domain specific binding / mRNA binding / magnesium ion binding / mitochondrion / extracellular region / metal ion binding / nucleus / cytosol Similarity search - Function | ||||||||||||||||||||||||||||||
Biological species | ![]() ![]() | ||||||||||||||||||||||||||||||
Method | ELECTRON MICROSCOPY / single particle reconstruction / cryo EM / Resolution: 3.13 Å | ||||||||||||||||||||||||||||||
![]() | Capaldi, S. / Chaves-Sanjuan, A. / Bonnet, D.M.V. / Bassi, R. | ||||||||||||||||||||||||||||||
Funding support | European Union, 1items
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![]() | ![]() Title: Structural determinants for red-shifted absorption in higher-plants Photosystem I Authors: Capaldi, S. / Guardini, Z. / Montepietra, D. / Pagliuca, V.F. / Amelii, A. / Bonnet, D.M.V. / Chaves-Sanjuan, A. / Dall'Osto, L. / Bassi, R. | ||||||||||||||||||||||||||||||
History |
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Structure visualization
Structure viewer | Molecule: ![]() ![]() |
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Downloads & links
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Download
PDBx/mmCIF format | ![]() | 1.1 MB | Display | ![]() |
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PDB format | ![]() | 789.6 KB | Display | ![]() |
PDBx/mmJSON format | ![]() | Tree view | ![]() | |
Others | ![]() |
-Validation report
Summary document | ![]() | 13.9 MB | Display | ![]() |
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Full document | ![]() | 14.2 MB | Display | |
Data in XML | ![]() | 174.9 KB | Display | |
Data in CIF | ![]() | 225.1 KB | Display | |
Arichive directory | ![]() ![]() | HTTPS FTP |
-Related structure data
Related structure data | ![]() 51219MC ![]() 9gc2C M: map data used to model this data C: citing same article ( |
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Similar structure data | Similarity search - Function & homology ![]() |
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Links
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Assembly
Deposited unit | ![]()
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1 |
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Components
-Chlorophyll a-b binding protein ... , 2 types, 2 molecules 14
#1: Protein | Mass: 22522.793 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) ![]() ![]() |
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#4: Protein | Mass: 22274.238 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) ![]() ![]() |
-Photosystem I chlorophyll a/b-binding protein ... , 2 types, 2 molecules 23
#2: Protein | Mass: 23448.623 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) ![]() ![]() |
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#3: Protein | Mass: 25234.773 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) ![]() ![]() |
-Photosystem I P700 chlorophyll a apoprotein ... , 2 types, 2 molecules AB
#5: Protein | Mass: 83180.156 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) ![]() ![]() |
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#6: Protein | Mass: 82448.695 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) ![]() ![]() |
-Protein , 1 types, 1 molecules C
#7: Protein | Mass: 9049.509 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) ![]() ![]() |
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-Photosystem I reaction center subunit ... , 10 types, 10 molecules DEFGHIJLKN
#8: Protein | Mass: 17684.170 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) ![]() ![]() |
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#9: Protein | Mass: 10561.903 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) ![]() ![]() |
#10: Protein | Mass: 17319.160 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) ![]() ![]() |
#11: Protein | Mass: 11000.299 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) ![]() ![]() |
#12: Protein | Mass: 10366.769 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) ![]() ![]() |
#13: Protein/peptide | Mass: 4137.024 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) ![]() ![]() |
#14: Protein/peptide | Mass: 5021.978 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) ![]() ![]() |
#15: Protein | Mass: 17982.693 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) ![]() ![]() |
#16: Protein | Mass: 8468.770 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) ![]() ![]() |
#17: Protein | Mass: 9720.043 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) ![]() ![]() |
-Sugars , 2 types, 4 molecules 


#25: Sugar | #28: Sugar | ChemComp-DGD / | |
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-Non-polymers , 9 types, 206 molecules 
















#18: Chemical | ChemComp-CHL / #19: Chemical | ChemComp-CLA / #20: Chemical | ChemComp-LUT / ( #21: Chemical | ChemComp-XAT / ( #22: Chemical | ChemComp-LHG / #23: Chemical | ChemComp-BCR / #24: Chemical | ChemComp-LMG / #26: Chemical | #27: Chemical | |
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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: Photosystem I supercomplex (PSI-LHCI) / Type: ORGANELLE OR CELLULAR COMPONENT / Entity ID: #1-#17 / Source: NATURAL | ||||||||||||
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Molecular weight | Experimental value: NO | ||||||||||||
Source (natural) | Organism: ![]() ![]() | ||||||||||||
Buffer solution | pH: 7.5 | ||||||||||||
Buffer component |
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Specimen | Embedding applied: NO / Shadowing applied: NO / Staining applied: NO / Vitrification applied: YES | ||||||||||||
Specimen support | Details: 30mA / Grid material: COPPER / Grid mesh size: 300 divisions/in. / Grid type: Quantifoil R0.6/1 | ||||||||||||
Vitrification | Instrument: FEI VITROBOT MARK IV / Cryogen name: ETHANE / Humidity: 100 % / Chamber temperature: 277 K |
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Electron microscopy imaging
Experimental equipment | ![]() Model: Talos Arctica / Image courtesy: FEI Company |
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Microscopy | Model: FEI TALOS ARCTICA |
Electron gun | Electron source: ![]() |
Electron lens | Mode: BRIGHT FIELD / Nominal magnification: 120000 X / Nominal defocus max: 2400 nm / Nominal defocus min: 800 nm / Cs: 2.7 mm / C2 aperture diameter: 50 µm / Alignment procedure: COMA FREE |
Specimen holder | Cryogen: NITROGEN / Specimen holder model: FEI TITAN KRIOS AUTOGRID HOLDER |
Image recording | Electron dose: 40 e/Å2 / Detector mode: COUNTING / Film or detector model: FEI FALCON III (4k x 4k) / Num. of grids imaged: 1 |
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Processing
EM software |
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CTF correction | Type: NONE | ||||||||||||||||||||||||||||||||||||
Particle selection | Num. of particles selected: 575271 | ||||||||||||||||||||||||||||||||||||
Symmetry | Point symmetry: C1 (asymmetric) | ||||||||||||||||||||||||||||||||||||
3D reconstruction | Resolution: 3.13 Å / Resolution method: FSC 0.143 CUT-OFF / Num. of particles: 54155 / Symmetry type: POINT | ||||||||||||||||||||||||||||||||||||
Atomic model building | Protocol: RIGID BODY FIT / Space: REAL | ||||||||||||||||||||||||||||||||||||
Atomic model building | PDB-ID: 7DKZ Accession code: 7DKZ / Source name: PDB / Type: experimental model | ||||||||||||||||||||||||||||||||||||
Refinement | Cross valid method: NONE Stereochemistry target values: GeoStd + Monomer Library + CDL v1.2 | ||||||||||||||||||||||||||||||||||||
Displacement parameters | Biso mean: 50.52 Å2 | ||||||||||||||||||||||||||||||||||||
Refine LS restraints |
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