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Open data
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Basic information
| Entry | Database: PDB / ID: 6ig9 | ||||||
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| Title | Tra1 subunit from Saccharomyces cerevisiae SAGA complex | ||||||
Components | Transcription-associated protein 1 | ||||||
Keywords | TRANSCRIPTION / Epigenetics / Acetyltransferase / Co-activator | ||||||
| Function / homology | Function and homology informationTTT Hsp90 cochaperone complex / SLIK (SAGA-like) complex / SAGA complex / DNA repair-dependent chromatin remodeling / NuA4 histone acetyltransferase complex / Ub-specific processing proteases / DNA repair / DNA-templated transcription / regulation of DNA-templated transcription / regulation of transcription by RNA polymerase II ...TTT Hsp90 cochaperone complex / SLIK (SAGA-like) complex / SAGA complex / DNA repair-dependent chromatin remodeling / NuA4 histone acetyltransferase complex / Ub-specific processing proteases / DNA repair / DNA-templated transcription / regulation of DNA-templated transcription / regulation of transcription by RNA polymerase II / positive regulation of transcription by RNA polymerase II / nucleus Similarity search - Function | ||||||
| Biological species | ![]() | ||||||
| Method | ELECTRON MICROSCOPY / single particle reconstruction / cryo EM / Resolution: 4.6 Å | ||||||
Authors | Zheng, X.D. / Liu, G.C. / Guan, H.P. / Li, H.T. | ||||||
Citation | Journal: Cell Discov / Year: 2019Title: Architecture of SAGA complex. Authors: Gaochao Liu / Xiangdong Zheng / Haipeng Guan / Yong Cao / Hongyuan Qu / Junqing Kang / Xiangle Ren / Jianlin Lei / Meng-Qiu Dong / Xueming Li / Haitao Li / ![]() | ||||||
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Structure visualization
| Movie |
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| Structure viewer | Molecule: Molmil Jmol/JSmol |
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Downloads & links
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Download
| PDBx/mmCIF format | 6ig9.cif.gz | 492.5 KB | Display | PDBx/mmCIF format |
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| PDB format | pdb6ig9.ent.gz | 333.5 KB | Display | PDB format |
| PDBx/mmJSON format | 6ig9.json.gz | Tree view | PDBx/mmJSON format | |
| Others | Other downloads |
-Validation report
| Summary document | 6ig9_validation.pdf.gz | 930.6 KB | Display | wwPDB validaton report |
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| Full document | 6ig9_full_validation.pdf.gz | 949.9 KB | Display | |
| Data in XML | 6ig9_validation.xml.gz | 81.7 KB | Display | |
| Data in CIF | 6ig9_validation.cif.gz | 134.9 KB | Display | |
| Arichive directory | https://data.pdbj.org/pub/pdb/validation_reports/ig/6ig9 ftp://data.pdbj.org/pub/pdb/validation_reports/ig/6ig9 | HTTPS FTP |
-Related structure data
| Related structure data | ![]() 9664MC ![]() 9663C M: map data used to model this data C: citing same article ( |
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| Similar structure data |
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Links
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Assembly
| Deposited unit | ![]()
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Components
| #1: Protein | Mass: 433677.281 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) ![]() |
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-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: Tra1 / ScTra1 / Type: COMPLEX Details: One of the major part from SAGA (Spt-Ada-Gcn5-Acetyltransferase) complex Entity ID: all / Source: NATURAL | ||||||||||||
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| Molecular weight | Value: 1.8 MDa / Experimental value: NO | ||||||||||||
| Source (natural) | Organism: ![]() | ||||||||||||
| Buffer solution | pH: 8.5 / Details: 20mM HEPES pH 8.5 150mM Nacl | ||||||||||||
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| Specimen | Conc.: 0.2 mg/ml / Embedding applied: NO / Shadowing applied: NO / Staining applied: NO / Vitrification applied: YES Details: We extracted it from the overall SAGA complex structure. | ||||||||||||
| Specimen support | Details: The grid was coated with a home-made thin continuous carbon film. Grid material: COPPER / Grid mesh size: 400 divisions/in. / Grid type: Quantifoil R2/2 | ||||||||||||
| Vitrification | Instrument: FEI VITROBOT MARK IV / Cryogen name: ETHANE / Humidity: 95 % / Chamber temperature: 281 K Details: Blot for 4 seconds and wait for 30 seconds before plunging |
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Electron microscopy imaging
| Experimental equipment | ![]() Model: Titan Krios / Image courtesy: FEI Company |
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| 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 / Nominal magnification: 81000 X / Calibrated magnification: 81000 X / Nominal defocus max: 3000 nm / Nominal defocus min: 1200 nm / Calibrated defocus min: 1200 nm / Calibrated defocus max: 3000 nm / Cs: 0.1 mm / C2 aperture diameter: 70 µm / Alignment procedure: COMA FREE |
| Specimen holder | Cryogen: NITROGEN / Specimen holder model: FEI TITAN KRIOS AUTOGRID HOLDER / Temperature (max): 70 K / Temperature (min): 70 K |
| Image recording | Average exposure time: 0.25 sec. / Electron dose: 5.6 e/Å2 / Detector mode: SUPER-RESOLUTION / Film or detector model: GATAN K2 SUMMIT (4k x 4k) / Num. of real images: 8526 |
| EM imaging optics | Spherical aberration corrector: With a Cs-corrector |
| Image scans | Sampling size: 5 µm / Width: 3838 / Height: 3710 / Movie frames/image: 32 / Used frames/image: 3-30 |
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Processing
| Software | Name: PHENIX / Version: dev_3290: / Classification: refinement | |||||||||||||||||||||||||||||||||||||||||||||
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| EM software |
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| CTF correction | Details: GPU accelerated / Type: NONE | |||||||||||||||||||||||||||||||||||||||||||||
| Particle selection | Num. of particles selected: 1350000 / Details: GPU accelerated | |||||||||||||||||||||||||||||||||||||||||||||
| Symmetry | Point symmetry: C1 (asymmetric) | |||||||||||||||||||||||||||||||||||||||||||||
| 3D reconstruction | Resolution: 4.6 Å / Resolution method: FSC 0.143 CUT-OFF / Num. of particles: 176464 / Algorithm: FOURIER SPACE / Details: GPU accelerated / Num. of class averages: 1 / Symmetry type: POINT | |||||||||||||||||||||||||||||||||||||||||||||
| Atomic model building | Protocol: AB INITIO MODEL / Space: REAL | |||||||||||||||||||||||||||||||||||||||||||||
| Atomic model building | PDB-ID: 5OJS Accession code: 5OJS / Source name: PDB / Type: experimental model | |||||||||||||||||||||||||||||||||||||||||||||
| Refine LS restraints |
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