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- PDB-3egq: Crystal structure of a tetr-family transcriptional regulator (af_... -
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Open data
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Basic information
Entry | Database: PDB / ID: 3egq | ||||||
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Title | Crystal structure of a tetr-family transcriptional regulator (af_1817) from archaeoglobus fulgidus at 2.55 A resolution | ||||||
![]() | TetR family Transcriptional regulator | ||||||
![]() | TRANSCRIPTION / Dna-binding / transcription regulation / bacterial regulatory proteins / dna/rna-binding 3-helical bundle fold / helix turn helix motif / hth motif / transcription regulator / structural genomics / Joint Center for Structural Genomics / JCSG / Protein Structure Initiative / PSI-2 | ||||||
Function / homology | ![]() | ||||||
Biological species | ![]() ![]() | ||||||
Method | ![]() ![]() ![]() | ||||||
![]() | Joint Center for Structural Genomics (JCSG) | ||||||
![]() | ![]() Title: Crystal structure of TetR-family transcriptional regulator (NP_070644.1) from ARCHAEOGLOBUS FULGIDUS at 2.55 A resolution Authors: Joint Center for Structural Genomics (JCSG) | ||||||
History |
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Structure visualization
Structure viewer | Molecule: ![]() ![]() |
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Downloads & links
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Download
PDBx/mmCIF format | ![]() | 75.1 KB | Display | ![]() |
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PDB format | ![]() | 60.2 KB | Display | ![]() |
PDBx/mmJSON format | ![]() | Tree view | ![]() | |
Others | ![]() |
-Validation report
Summary document | ![]() | 951.5 KB | Display | ![]() |
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Full document | ![]() | 958.8 KB | Display | |
Data in XML | ![]() | 14.3 KB | Display | |
Data in CIF | ![]() | 18.7 KB | Display | |
Arichive directory | ![]() ![]() | HTTPS FTP |
-Related structure data
Similar structure data | |
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Other databases |
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Links
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Assembly
Deposited unit | ![]()
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Unit cell |
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Noncrystallographic symmetry (NCS) | NCS domain:
NCS domain segments: Ens-ID: 1
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Components
#1: Protein | Mass: 20519.148 Da / Num. of mol.: 2 Source method: isolated from a genetically manipulated source Source: (gene. exp.) ![]() ![]() ![]() ![]() #2: Chemical | #3: Water | ChemComp-HOH / | Sequence details | THE CONSTRUCT WAS EXPRESSED WITH A PURIFICATION TAG MGSDKIHHHHHHENLYFQG. THE TAG WAS REMOVED WITH ...THE CONSTRUCT WAS EXPRESSED WITH A PURIFICATI | |
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-Experimental details
-Experiment
Experiment | Method: ![]() |
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Sample preparation
Crystal | Density Matthews: 2.35 Å3/Da / Density % sol: 47.72 % |
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Crystal grow | Temperature: 293 K / Method: vapor diffusion, sitting drop / pH: 4.35 Details: 0.2M sodium chloride, 38.4% polyethylene glycol 200, 0.1M phosphate-citrate pH 4.35, NANODROP', VAPOR DIFFUSION, SITTING DROP, temperature 293K |
-Data collection
Diffraction | Mean temperature: 100 K | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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Diffraction source | Source: ![]() ![]() ![]() | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Detector | Type: MARMOSAIC 325 mm CCD / Detector: CCD / Date: May 1, 2008 / Details: Flat collimating mirror, toroid focusing mirror | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Radiation | Monochromator: Double crystal monochromator / Protocol: MAD / Monochromatic (M) / Laue (L): M / Scattering type: x-ray | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Radiation wavelength |
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Reflection | Resolution: 2.55→29.412 Å / Num. obs: 13034 / % possible obs: 96.7 % / Observed criterion σ(I): -3 / Biso Wilson estimate: 67.119 Å2 / Rmerge(I) obs: 0.036 / Net I/σ(I): 13.52 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Reflection shell |
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-Phasing
Phasing | Method: ![]() |
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Processing
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Refinement | Method to determine structure: ![]() Stereochemistry target values: MAXIMUM LIKELIHOOD WITH PHASES Details: 1.HYDROGENS HAVE BEEN ADDED IN THE RIDING POSITIONS. 2.ATOM RECORD CONTAINS RESIDUAL B FACTORS ONLY. 3.A MET-INHIBITION PROTOCOL WAS USED FOR SELENOMETHIONINE INCORPORA DURING PROTEIN ...Details: 1.HYDROGENS HAVE BEEN ADDED IN THE RIDING POSITIONS. 2.ATOM RECORD CONTAINS RESIDUAL B FACTORS ONLY. 3.A MET-INHIBITION PROTOCOL WAS USED FOR SELENOMETHIONINE INCORPORA DURING PROTEIN EXPRESSION. THE OCCUPANCY OF THE SE ATOMS IN THE M RESIDUES WAS REDUCED TO 0.75 TO ACCOUNT FOR THE REDUCED SCATTERIN POWER DUE TO PARTIAL S-MET INCORPORATION. 4.TWO PEG 200 FRAGMENT (PE8) FROM MOLECULES FROM THE CRYSTALLIZATION CONDITIONS WERE MODELED.
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Solvent computation | Ion probe radii: 0.8 Å / Shrinkage radii: 0.8 Å / VDW probe radii: 1.2 Å / Solvent model: MASK | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Displacement parameters | Biso max: 118.11 Å2 / Biso mean: 58.375 Å2 / Biso min: 32.59 Å2
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Refinement step | Cycle: LAST / Resolution: 2.55→29.412 Å
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Refine LS restraints |
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Refine LS restraints NCS | Dom-ID: 1 / Auth asym-ID: A / Ens-ID: 1 / Refine-ID: X-RAY DIFFRACTION
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LS refinement shell | Resolution: 2.55→2.616 Å / Total num. of bins used: 20
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Refinement TLS params. | Method: refined / Refine-ID: X-RAY DIFFRACTION
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Refinement TLS group |
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