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Open data
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Basic information
| Entry | Database: PDB / ID: 9k9w | |||||||||
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| Title | structure of bundle-shaped PBS with short rod | |||||||||
Components |
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Keywords | PHOTOSYNTHESIS / phycobilisome / light-harvesting complex | |||||||||
| Function / homology | Function and homology informationphycobilisome / plasma membrane-derived thylakoid membrane / photosynthesis / lyase activity Similarity search - Function | |||||||||
| Biological species | Gloeobacter violaceus PCC 7421 (bacteria) | |||||||||
| Method | ELECTRON MICROSCOPY / single particle reconstruction / cryo EM / Resolution: 2.8 Å | |||||||||
Authors | Sui, S.-F. / Ma, J. / You, X. / Sun, S. | |||||||||
| Funding support | China, 2items
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Citation | Journal: Nat Commun / Year: 2025Title: Light-induced structural adaptation of the bundle-shaped phycobilisome from thylakoid-lacking cyanobacterium Gloeobacter violaceus Authors: Ma, J. / You, X. / Sun, S. / Sui, S.F. | |||||||||
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Structure visualization
| Structure viewer | Molecule: Molmil Jmol/JSmol |
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Downloads & links
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Download
| PDBx/mmCIF format | 9k9w.cif.gz | 8.6 MB | Display | PDBx/mmCIF format |
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| PDB format | pdb9k9w.ent.gz | Display | PDB format | |
| PDBx/mmJSON format | 9k9w.json.gz | Tree view | PDBx/mmJSON format | |
| Others | Other downloads |
-Validation report
| Summary document | 9k9w_validation.pdf.gz | 21.6 MB | Display | wwPDB validaton report |
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| Full document | 9k9w_full_validation.pdf.gz | 27.3 MB | Display | |
| Data in XML | 9k9w_validation.xml.gz | 1.9 MB | Display | |
| Data in CIF | 9k9w_validation.cif.gz | 2.4 MB | Display | |
| Arichive directory | https://data.pdbj.org/pub/pdb/validation_reports/k9/9k9w ftp://data.pdbj.org/pub/pdb/validation_reports/k9/9k9w | HTTPS FTP |
-Related structure data
| Related structure data | ![]() 62201MC ![]() 36381 ![]() 36382 ![]() 8jkx C: citing same article ( M: map data used to model this data |
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| Similar structure data | Similarity search - Function & homology F&H Search |
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Links
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Assembly
| Deposited unit | ![]()
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Components
-Allophycocyanin ... , 2 types, 82 molecules AZL5N5B5D5F5H5J5d5f5P5R5T5V5X5Z5b5P7R7B7D7F7H7J7L7N7h7j7T7...
| #1: Protein | Mass: 17241.664 Da / Num. of mol.: 42 / Source method: isolated from a natural source / Source: (natural) Gloeobacter violaceus PCC 7421 (bacteria) / References: UniProt: Q7NL79#8: Protein | Mass: 17539.039 Da / Num. of mol.: 40 / Source method: isolated from a natural source / Source: (natural) Gloeobacter violaceus PCC 7421 (bacteria) / References: UniProt: Q7NL80 |
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-Protein , 7 types, 182 molecules AACAEAGAIAKAOAQASAUAWAYAO1Q1S1A1G3I3K3G2I2K2A3C3E3A4C4O3Q3S3...
| #2: Protein | Mass: 17679.852 Da / Num. of mol.: 84 / Source method: isolated from a natural source / Source: (natural) Gloeobacter violaceus PCC 7421 (bacteria) / References: UniProt: Q7M7F7#3: Protein | Mass: 18478.953 Da / Num. of mol.: 84 / Source method: isolated from a natural source / Source: (natural) Gloeobacter violaceus PCC 7421 (bacteria) / References: UniProt: Q7M7C7#6: Protein | Mass: 81544.312 Da / Num. of mol.: 2 / Source method: isolated from a natural source / Source: (natural) Gloeobacter violaceus PCC 7421 (bacteria) / References: UniProt: Q7NGT2#7: Protein | Mass: 7776.872 Da / Num. of mol.: 2 / Source method: isolated from a natural source / Source: (natural) Gloeobacter violaceus PCC 7421 (bacteria) / References: UniProt: Q7NL59#9: Protein | Mass: 7633.809 Da / Num. of mol.: 6 / Source method: isolated from a natural source / Source: (natural) Gloeobacter violaceus PCC 7421 (bacteria) / References: UniProt: Q7NL78#10: Protein | Mass: 130002.258 Da / Num. of mol.: 2 / Source method: isolated from a natural source / Source: (natural) Gloeobacter violaceus PCC 7421 (bacteria) / References: UniProt: Q7NL81#11: Protein | Mass: 92127.602 Da / Num. of mol.: 2 / Source method: isolated from a natural source / Source: (natural) Gloeobacter violaceus PCC 7421 (bacteria) / References: UniProt: Q7NL64 |
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-Phycocyanin-associated rod linker ... , 2 types, 12 molecules MAM3M4M8M9M1NAN3Z4N9Z8N1
| #4: Protein | Mass: 30913.822 Da / Num. of mol.: 6 / Source method: isolated from a natural source Details: There is no expression tag in the Phycocyanin-associated rod linker proteins (MA, M3, M4, M8, M9 and M1) or the Phycocyanin-associated rod linker proteins (NA, N3, Z4, N9, Z8 and N1). We ...Details: There is no expression tag in the Phycocyanin-associated rod linker proteins (MA, M3, M4, M8, M9 and M1) or the Phycocyanin-associated rod linker proteins (NA, N3, Z4, N9, Z8 and N1). We align all amino acids by their electron density map. Source: (natural) Gloeobacter violaceus PCC 7421 (bacteria) / References: UniProt: Q7NGF2#5: Protein | Mass: 31085.066 Da / Num. of mol.: 6 / Source method: isolated from a natural source / Source: (natural) Gloeobacter violaceus PCC 7421 (bacteria) / References: UniProt: Q7NM19 |
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-Non-polymers , 1 types, 336 molecules 
| #12: Chemical | ChemComp-CYC / |
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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: phycobilisome / Type: COMPLEX / Entity ID: #6, #5 / Source: NATURAL | |||||||||||||||
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| Molecular weight | Value: 14700 kDa/nm / Experimental value: NO | |||||||||||||||
| Source (natural) | Organism: Porphyridium purpureum (eukaryote) | |||||||||||||||
| Buffer solution | pH: 7 | |||||||||||||||
| Buffer component |
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| Specimen | Embedding applied: NO / Shadowing applied: NO / Staining applied: NO / Vitrification applied: YES | |||||||||||||||
| Specimen support | Grid material: COPPER / Grid mesh size: 300 divisions/in. / Grid type: Quantifoil R2/1 | |||||||||||||||
| Vitrification | Instrument: FEI VITROBOT MARK IV / Cryogen name: ETHANE / Humidity: 100 % / Chamber temperature: 18 K |
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Electron microscopy imaging
| Experimental equipment | ![]() Model: Tecnai F30 / Image courtesy: FEI Company |
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| Microscopy | Model: FEI TECNAI F30 |
| Electron gun | Electron source: FIELD EMISSION GUN / Accelerating voltage: 300 kV / Illumination mode: FLOOD BEAM |
| Electron lens | Mode: BRIGHT FIELD / Nominal magnification: 64000 X / Calibrated magnification: 64000 X / Nominal defocus max: 2300 nm / Nominal defocus min: 1300 nm / Calibrated defocus min: 1300 nm / Calibrated defocus max: 2300 nm / Cs: 0.001 mm / C2 aperture diameter: 100 µm / Alignment procedure: COMA FREE |
| Specimen holder | Cryogen: NITROGEN / Specimen holder model: FEI TITAN KRIOS AUTOGRID HOLDER / Temperature (max): 77 K / Temperature (min): 77 K |
| Image recording | Average exposure time: 8.2 sec. / Electron dose: 50 e/Å2 / Detector mode: SUPER-RESOLUTION / Film or detector model: GATAN K2 SUMMIT (4k x 4k) / Num. of grids imaged: 2 / Num. of real images: 6438 |
| EM imaging optics | Energyfilter name: GIF Quantum ER / Energyfilter slit width: 20 eV Spherical aberration corrector: Spherical aberration (Cs) corrector |
| Image scans | Width: 4096 / Height: 4096 / Movie frames/image: 32 / Used frames/image: 1-32 |
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Processing
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| CTF correction | Type: NONE | ||||||||||||||||||||||||||||||||||||
| Particle selection | Num. of particles selected: 1042622 | ||||||||||||||||||||||||||||||||||||
| Symmetry | Point symmetry: C2 (2 fold cyclic) | ||||||||||||||||||||||||||||||||||||
| 3D reconstruction | Resolution: 2.8 Å / Resolution method: FSC 0.143 CUT-OFF / Num. of particles: 389430 / Symmetry type: POINT | ||||||||||||||||||||||||||||||||||||
| Atomic model building | B value: 62.05 / Protocol: RIGID BODY FIT / Space: REAL / Target criteria: 0,99 | ||||||||||||||||||||||||||||||||||||
| Atomic model building | PDB-ID: 6KGX Accession code: 6KGX / Source name: PDB / Type: experimental model |
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About Yorodumi




Gloeobacter violaceus PCC 7421 (bacteria)
China, 2items
Citation





PDBj
Porphyridium purpureum (eukaryote)
FIELD EMISSION GUN
