+Open data
-Basic information
Entry | Database: PDB / ID: 2oz9 | |||||||||
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Title | E. coli TRP holorepressor, orthorhombic crystal form | |||||||||
Components | Trp operon repressor | |||||||||
Keywords | DNA BINDING PROTEIN / DNA BINDING REGULATORY PROTEIN | |||||||||
Function / homology | Function and homology information sequence-specific DNA binding / DNA-binding transcription factor activity / negative regulation of DNA-templated transcription / regulation of DNA-templated transcription / DNA binding / cytoplasm Similarity search - Function | |||||||||
Biological species | Escherichia coli (E. coli) | |||||||||
Method | X-RAY DIFFRACTION / MOLECULAR REPLACEMENT / Resolution: 1.65 Å | |||||||||
Authors | Lawson, C.L. / Sigler, P.B. | |||||||||
Citation | Journal: Proteins / Year: 1988 Title: Flexibility of the DNA-binding domains of trp repressor. Authors: Lawson, C.L. / Zhang, R.G. / Schevitz, R.W. / Otwinowski, Z. / Joachimiak, A. / Sigler, P.B. #1: Journal: Nature / Year: 1987 Title: The Crystal Structure of Trp Aporepressor at 1.8 Angstroms Shows How Binding Tryptophan Enhances DNA Affinity Authors: Zhang, R.G. / Joachimiak, A. / Lawson, C.L. / Schevitz, R.W. / Otwinowski, Z. / Sigler, P.B. #2: Journal: Nature / Year: 1985 Title: The Three-Dimensional Structure of Trp Repressor Authors: Schevitz, R.W. / Otwinowski, Z. / Joachimiak, A. / Lawson, C.L. / Sigler, P.B. #3: Journal: J.Biol.Chem. / Year: 1983 Title: Functional Inferences from Crystals of Escherichia Coli Trp Repressor Authors: Joachimiak, A. / Schevitz, R.W. / Kelley, R.L. / Yanofsky, C. / Sigler, P.B. #4: Journal: Proc.Natl.Acad.Sci.USA / Year: 1983 Title: Purification and Characterization of Trp Repressor Authors: Joachimiak, A. / Kelley, R.L. / Gunsalus, R.P. / Yanofsky, C. / Sigler, P.B. #5: Journal: Proc.Natl.Acad.Sci.USA / Year: 1980 Title: Nucleotide Sequence and Expression of Escherichia Coli Trpr, the Structural Gene for the Trp Aporepressor Authors: Gunsalus, R.P. / Yanofsky, C. | |||||||||
History |
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-Structure visualization
Structure viewer | Molecule: MolmilJmol/JSmol |
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-Downloads & links
-Download
PDBx/mmCIF format | 2oz9.cif.gz | 37.4 KB | Display | PDBx/mmCIF format |
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PDB format | pdb2oz9.ent.gz | 24.4 KB | Display | PDB format |
PDBx/mmJSON format | 2oz9.json.gz | Tree view | PDBx/mmJSON format | |
Others | Other downloads |
-Validation report
Arichive directory | https://data.pdbj.org/pub/pdb/validation_reports/oz/2oz9 ftp://data.pdbj.org/pub/pdb/validation_reports/oz/2oz9 | HTTPS FTP |
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-Related structure data
Related structure data | 1wrpSC 3wrpC S: Starting model for refinement C: citing same article (ref.) |
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Similar structure data |
-Links
-Assembly
Deposited unit |
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1 |
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Unit cell |
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Details | The biological assembly is a dimer. To generate the second half of the assembly apply the crystallographic symmetry operator -x, -y, z. |
-Components
#1: Protein | Mass: 12238.934 Da / Num. of mol.: 1 Source method: isolated from a genetically manipulated source Source: (gene. exp.) Escherichia coli (E. coli) / Gene: trpR, rtrY / Plasmid: pRLK18 (modified pBR322) / Production host: Escherichia coli (E. coli) / References: UniProt: P0A881 |
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#2: Chemical | ChemComp-NA / |
#3: Chemical | ChemComp-SO4 / |
#4: Chemical | ChemComp-TRP / |
#5: Water | ChemComp-HOH / |
-Experimental details
-Experiment
Experiment | Method: X-RAY DIFFRACTION / Number of used crystals: 1 |
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-Sample preparation
Crystal | Density Matthews: 1.93 Å3/Da / Density % sol: 36.3 % |
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Crystal grow | Temperature: 298 K / Method: vapor diffusion / pH: 5 Details: crystallization conditions: 2.5 M sodium phosphate, 0.6 M ammonium chloride, 2.5 mM L-tryptophan. Prior to data collection the crystal was equilibrated to 2.4 M ammonium sulfate, 0.4 M ...Details: crystallization conditions: 2.5 M sodium phosphate, 0.6 M ammonium chloride, 2.5 mM L-tryptophan. Prior to data collection the crystal was equilibrated to 2.4 M ammonium sulfate, 0.4 M sodium chloride, 2.4 mM L-tryptophan, 50 mM sodium acetate., pH 5.0, VAPOR DIFFUSION, temperature 298K |
-Data collection
Diffraction | Mean temperature: 298 K |
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Diffraction source | Source: ROTATING ANODE / Type: ELLIOTT GX-6 / Wavelength: 1.5418 Å |
Detector | Type: KODAK / Detector: FILM / Details: graphite monochromator |
Radiation | Monochromator: graphite / Protocol: SINGLE WAVELENGTH / Monochromatic (M) / Laue (L): M / Scattering type: x-ray |
Radiation wavelength | Wavelength: 1.5418 Å / Relative weight: 1 |
Reflection | Resolution: 1.65→20 Å / Num. all: 10945 / Num. obs: 10945 / Observed criterion σ(F): 2 |
-Processing
Software |
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Refinement | Method to determine structure: MOLECULAR REPLACEMENT Starting model: 1wrp dimer Resolution: 1.65→5 Å / Isotropic thermal model: isotropic / Cross valid method: NONE / σ(F): 2 / Stereochemistry target values: Hendrickson & Konnert Details: REFINEMENT. BY THE RESTRAINED LEAST-SQUARES PROCEDURE OF J. KONNERT AND W. HENDRICKSON (PROGRAM *PROLSQ*) AS MODIFIED BY B. FINZEL (PROGRAM *PROFFT*) AND USE OF PROGRAM *FRODO* OF T. A. ...Details: REFINEMENT. BY THE RESTRAINED LEAST-SQUARES PROCEDURE OF J. KONNERT AND W. HENDRICKSON (PROGRAM *PROLSQ*) AS MODIFIED BY B. FINZEL (PROGRAM *PROFFT*) AND USE OF PROGRAM *FRODO* OF T. A. JONES. THE R VALUE IS 0.180. THE RMS DEVIATION FROM IDEALITY OF THE BOND LENGTHS IS 0.012 ANGSTROMS. THE RMS DEVIATION FROM IDEALITY OF THE BOND ANGLES IS 2.0 DEGREES.
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Displacement parameters | Biso mean: 17.284 Å2 | ||||||||||||
Refine analyze | Luzzati coordinate error obs: 0.2 Å | ||||||||||||
Refinement step | Cycle: LAST / Resolution: 1.65→5 Å
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Refine LS restraints |
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