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Yorodumi- PDB-4m35: Crystal structure of gated-pore mutant H126/141D of second DNA-Bi... -
+Open data
-Basic information
Entry | Database: PDB / ID: 4m35 | ||||||
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Title | Crystal structure of gated-pore mutant H126/141D of second DNA-Binding protein under starvation from Mycobacterium smegmatis | ||||||
Components | Putative starvation-induced DNA protecting protein/Ferritin and Dps | ||||||
Keywords | DNA BINDING PROTEIN / ferritin-like fold / DNA binding / ferroxidation / Iron | ||||||
Function / homology | Function and homology information oxidoreductase activity, acting on metal ions / ferric iron binding / DNA binding Similarity search - Function | ||||||
Biological species | Mycobacterium smegmatis (bacteria) | ||||||
Method | X-RAY DIFFRACTION / Direct refinement against model PDB / Resolution: 2.05 Å | ||||||
Authors | Williams, S.M. / Chandran, A.V. / Vijayabaskar, M.S. / Roy, S. / Balaram, H. / Vishveshwara, S. / Vijayan, M. / Chatterji, D. | ||||||
Citation | Journal: J.Biol.Chem. / Year: 2014 Title: A histidine aspartate ionic lock gates the iron passage in miniferritins from Mycobacterium smegmatis Authors: Williams, S.M. / Chandran, A.V. / Vijayabaskar, M.S. / Roy, S. / Balaram, H. / Vishveshwara, S. / Vijayan, M. / Chatterji, D. | ||||||
History |
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-Structure visualization
Structure viewer | Molecule: MolmilJmol/JSmol |
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-Downloads & links
-Download
PDBx/mmCIF format | 4m35.cif.gz | 139.1 KB | Display | PDBx/mmCIF format |
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PDB format | pdb4m35.ent.gz | 108.9 KB | Display | PDB format |
PDBx/mmJSON format | 4m35.json.gz | Tree view | PDBx/mmJSON format | |
Others | Other downloads |
-Validation report
Arichive directory | https://data.pdbj.org/pub/pdb/validation_reports/m3/4m35 ftp://data.pdbj.org/pub/pdb/validation_reports/m3/4m35 | HTTPS FTP |
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-Related structure data
Related structure data | 4m32C 4m33C 4m34C 2z90S 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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Unit cell |
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Components on special symmetry positions |
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-Components
#1: Protein | Mass: 18466.568 Da / Num. of mol.: 4 / Mutation: H126D, H141D Source method: isolated from a genetically manipulated source Source: (gene. exp.) Mycobacterium smegmatis (bacteria) / Strain: ATCC 700084 / mc(2)155 / Gene: DPS2, MSMEG_3242, MSMEI_3159 / Plasmid: pET21b / Production host: Escherichia coli (E. coli) / Strain (production host): BL21(DE3) / References: UniProt: A0QXB7 #2: Chemical | ChemComp-FE2 / #3: Chemical | #4: Chemical | #5: Water | ChemComp-HOH / | |
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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: 2.23 Å3/Da / Density % sol: 44.81 % Description: THE ENTRY CONTAINS FRIEDEL PAIRS IN F_PLUS/MINUS COLUMNS. |
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Crystal grow | Temperature: 298 K / Method: microbatch under oil / pH: 6.5 Details: 50mM MgCl2, 0.1M sodium cacodylate, 20% PEG3350 , pH 6.5, Microbatch under oil, temperature 298K |
-Data collection
Diffraction | Mean temperature: 100 K |
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Diffraction source | Source: ROTATING ANODE / Type: BRUKER AXS MICROSTAR / Wavelength: 1.54179 Å |
Detector | Type: MAR scanner 345 mm plate / Detector: IMAGE PLATE / Date: Jul 22, 2011 |
Radiation | Monochromator: Osmic / Protocol: SINGLE WAVELENGTH / Monochromatic (M) / Laue (L): M / Scattering type: x-ray |
Radiation wavelength | Wavelength: 1.54179 Å / Relative weight: 1 |
Reflection | Resolution: 2.03→30 Å / Num. obs: 41264 / Redundancy: 7 % / Biso Wilson estimate: 13.1 Å2 / Rmerge(I) obs: 0.053 / Net I/σ(I): 25.6 |
Reflection shell | Resolution: 2.03→2.14 Å / Redundancy: 6.4 % / Rmerge(I) obs: 0.139 / Mean I/σ(I) obs: 11.7 |
-Processing
Software |
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Refinement | Method to determine structure: Direct refinement against model PDB Starting model: 2z90 Resolution: 2.05→30 Å / Cor.coef. Fo:Fc: 0.941 / Cor.coef. Fo:Fc free: 0.92 / SU B: 3.424 / SU ML: 0.095 / Cross valid method: THROUGHOUT / ESU R: 0.2 / ESU R Free: 0.16 / Stereochemistry target values: MAXIMUM LIKELIHOOD Details: SF FILE CONTAINS FRIEDEL PAIRS UNDER I/F_MINUS AND I/F_PLUS COLUMNS.
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Solvent computation | Ion probe radii: 0.8 Å / Shrinkage radii: 0.8 Å / VDW probe radii: 1.4 Å / Solvent model: MASK | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Displacement parameters | Biso mean: 12.356 Å2
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Refinement step | Cycle: LAST / Resolution: 2.05→30 Å
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Refine LS restraints |
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LS refinement shell | Resolution: 2.05→2.106 Å / Total num. of bins used: 20
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