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Yorodumi- PDB-4js4: Crystal structure of E. coli Exonuclease I in complex with a dA16... -
+Open data
-Basic information
Entry | Database: PDB / ID: 4js4 | ||||||
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Title | Crystal structure of E. coli Exonuclease I in complex with a dA16 oligonucleotide | ||||||
Components |
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Keywords | HYDROLASE/DNA / exonuclease / processive / DNA repair / DnaQ superfamily / 3'-5' ssDNA exonuclease / HYDROLASE-DNA complex | ||||||
Function / homology | Function and homology information exodeoxyribonuclease I / single-stranded DNA 3'-5' DNA exonuclease activity / DNA catabolic process / 5'-deoxyribose-5-phosphate lyase activity / single-stranded DNA binding / 3'-5'-RNA exonuclease activity / DNA repair / magnesium ion binding Similarity search - Function | ||||||
Biological species | Escherichia coli (E. coli) | ||||||
Method | X-RAY DIFFRACTION / SYNCHROTRON / MOLECULAR REPLACEMENT / Resolution: 3.1 Å | ||||||
Authors | Bell, C.E. | ||||||
Citation | Journal: Nucleic Acids Res. / Year: 2013 Title: Crystal structures of Escherichia coli exonuclease I in complex with single-stranded DNA provide insights into the mechanism of processive digestion. Authors: Korada, S.K. / Johns, T.D. / Smith, C.E. / Jones, N.D. / McCabe, K.A. / Bell, C.E. | ||||||
History |
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-Structure visualization
Structure viewer | Molecule: MolmilJmol/JSmol |
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-Downloads & links
-Download
PDBx/mmCIF format | 4js4.cif.gz | 204.5 KB | Display | PDBx/mmCIF format |
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PDB format | pdb4js4.ent.gz | 160.9 KB | Display | PDB format |
PDBx/mmJSON format | 4js4.json.gz | Tree view | PDBx/mmJSON format | |
Others | Other downloads |
-Validation report
Arichive directory | https://data.pdbj.org/pub/pdb/validation_reports/js/4js4 ftp://data.pdbj.org/pub/pdb/validation_reports/js/4js4 | HTTPS FTP |
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-Related structure data
Related structure data | 4jrpC 4jrqC 4js5C 1fxxS C: citing same article (ref.) S: Starting model for refinement |
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Similar structure data |
-Links
-Assembly
Deposited unit |
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1 |
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2 |
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3 |
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Unit cell |
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Noncrystallographic symmetry (NCS) | NCS oper:
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-Components
#1: DNA chain | Mass: 4966.352 Da / Num. of mol.: 2 / Source method: obtained synthetically / Details: Chemical synthesis #2: Protein | Mass: 54848.891 Da / Num. of mol.: 2 Source method: isolated from a genetically manipulated source Source: (gene. exp.) Escherichia coli (E. coli) / Strain: K12 / Gene: sbcB, cpeA, xonA, b2011, JW1993 / Production host: Escherichia coli (E. coli) / References: UniProt: P04995, exodeoxyribonuclease I #3: Chemical | ChemComp-SO4 / |
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-Experimental details
-Experiment
Experiment | Method: X-RAY DIFFRACTION / Number of used crystals: 1 |
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-Sample preparation
Crystal | Density Matthews: 2.84 Å3/Da / Density % sol: 56.66 % |
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Crystal grow | Temperature: 298 K / Method: vapor diffusion, hanging drop / pH: 8 Details: 5% 2-propanol, 25% glycerol, 1.2M ammonium sulfate, pH 8.0, VAPOR DIFFUSION, HANGING DROP, temperature 298K |
-Data collection
Diffraction | Mean temperature: 100 K | |||||||||||||||
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Diffraction source | Source: SYNCHROTRON / Site: APS / Beamline: 31-ID / Wavelength: 0.97931 Å | |||||||||||||||
Detector | Type: RAYONIX MX225HE / Detector: CCD / Date: Nov 16, 2012 | |||||||||||||||
Radiation | Monochromator: Kohzu HLD-4 double crystal / Protocol: SINGLE WAVELENGTH / Monochromatic (M) / Laue (L): M / Scattering type: x-ray | |||||||||||||||
Radiation wavelength | Wavelength: 0.97931 Å / Relative weight: 1 | |||||||||||||||
Reflection twin |
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Reflection | Resolution: 3.1→40.6 Å / Num. all: 22917 / Num. obs: 22917 / % possible obs: 99.9 % / Observed criterion σ(F): 1 / Observed criterion σ(I): 1 / Redundancy: 7.6 % / Rmerge(I) obs: 0.066 / Net I/σ(I): 22.4 | |||||||||||||||
Reflection shell | Resolution: 3.1→3.27 Å / Redundancy: 7.6 % / Rmerge(I) obs: 0.813 / Mean I/σ(I) obs: 2.9 / % possible all: 100 |
-Processing
Software |
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Refinement | Method to determine structure: MOLECULAR REPLACEMENT Starting model: PDB ENTRY 1FXX Resolution: 3.1→40.6 Å / Cor.coef. Fo:Fc: 0.931 / Cor.coef. Fo:Fc free: 0.913 / SU B: 24.025 / SU ML: 0.452 / Cross valid method: THROUGHOUT / σ(F): 1 / ESU R Free: 0.1 / Stereochemistry target values: MAXIMUM LIKELIHOOD / Details: HYDROGENS HAVE BEEN ADDED IN THE RIDING POSITIONS
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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 mean: 108.916 Å2
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Refinement step | Cycle: LAST / Resolution: 3.1→40.6 Å
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Refine LS restraints |
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LS refinement shell | Resolution: 3.1→3.18 Å / Total num. of bins used: 20
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