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Open data
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Basic information
| Entry | Database: PDB / ID: 2wtl | ||||||
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| Title | Crystal structure of BfrA from M. tuberculosis | ||||||
Components | BACTERIOFERRITIN | ||||||
Keywords | METAL BINDING PROTEIN / BACTERIOFERRITIN A / HEME / IRON / BILIVERDIN / IRON STORAGE / METAL-BINDING | ||||||
| Function / homology | Function and homology informationMtb iron assimilation by chelation / response to iron ion / ferroxidase / ferroxidase activity / ferric iron binding / iron ion transport / intracellular iron ion homeostasis / iron ion binding / heme binding / extracellular region ...Mtb iron assimilation by chelation / response to iron ion / ferroxidase / ferroxidase activity / ferric iron binding / iron ion transport / intracellular iron ion homeostasis / iron ion binding / heme binding / extracellular region / plasma membrane / cytosol Similarity search - Function | ||||||
| Biological species | ![]() | ||||||
| Method | X-RAY DIFFRACTION / SYNCHROTRON / MOLECULAR REPLACEMENT / Resolution: 2.59 Å | ||||||
Authors | Gupta, V. / Gupta, R.K. / Khare, G. / Salunke, D.M. / Tyagi, A.K. | ||||||
Citation | Journal: Plos One / Year: 2009Title: Crystal Structure of Bfra from Mycobacterium Tuberculosis:Incorporation of Selenomethionine Results in Cleavage and Demetallation of Haem Authors: Gupta, V. / Gupta, R.K. / Khare, G. / Salunke, D.M. / Tyagi, A.K. | ||||||
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Structure visualization
| Structure viewer | Molecule: Molmil Jmol/JSmol |
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Downloads & links
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Download
| PDBx/mmCIF format | 2wtl.cif.gz | 205.6 KB | Display | PDBx/mmCIF format |
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| PDB format | pdb2wtl.ent.gz | 166.9 KB | Display | PDB format |
| PDBx/mmJSON format | 2wtl.json.gz | Tree view | PDBx/mmJSON format | |
| Others | Other downloads |
-Validation report
| Summary document | 2wtl_validation.pdf.gz | 1.3 MB | Display | wwPDB validaton report |
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| Full document | 2wtl_full_validation.pdf.gz | 1.3 MB | Display | |
| Data in XML | 2wtl_validation.xml.gz | 37.2 KB | Display | |
| Data in CIF | 2wtl_validation.cif.gz | 50.5 KB | Display | |
| Arichive directory | https://data.pdbj.org/pub/pdb/validation_reports/wt/2wtl ftp://data.pdbj.org/pub/pdb/validation_reports/wt/2wtl | HTTPS FTP |
-Related structure data
| Related structure data | ![]() 3bknS S: Starting model for refinement |
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| Similar structure data |
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Links
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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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| Noncrystallographic symmetry (NCS) | NCS oper:
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Components
| #1: Protein | Mass: 20096.705 Da / Num. of mol.: 6 Source method: isolated from a genetically manipulated source Details: THIS IS A SELENOMETHIONYL ANALOG OF BFRA FROM M. TUBERCULOSIS (RV1876) WITH MSE31, MSE52, MSE107 AND MSE141 INSTEAD OF M31, M52, M107 AND M141 Source: (gene. exp.) ![]() ![]() #2: Chemical | ChemComp-FE / #3: Chemical | #4: Chemical | Num. of mol.: 3 / Source method: obtained synthetically #5: Water | ChemComp-HOH / | Has protein modification | Y | Nonpolymer details | UNKNOWN ATOM OR ION (UNX): UNKNOWN ION AT 4-FOLD AXIS PLACED WITH 0.25 OCCUPANCY UNKNOWN (UNL): ...UNKNOWN ATOM OR ION (UNX): UNKNOWN ION AT 4-FOLD AXIS PLACED WITH 0.25 OCCUPANCY UNKNOWN (UNL): POSSIBLE BILIVERDIN | |
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-Experimental details
-Experiment
| Experiment | Method: X-RAY DIFFRACTION / Number of used crystals: 4 |
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Sample preparation
| Crystal | Density Matthews: 3.06 Å3/Da / Density % sol: 59.8 % / Description: NONE |
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| Crystal grow | pH: 8 Details: PROTEIN (9MG/ML) WAS CRYSTALLIZED WITH 1.6M NACL; 100MM TRIS-HCL, PH 8.0 AT ROOM TEMPERATURE |
-Data collection
| Diffraction | Mean temperature: 295 K |
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| Diffraction source | Source: SYNCHROTRON / Site: EMBL/DESY, HAMBURG / Beamline: X11 / Wavelength: 0.8148 |
| Detector | Type: MAR555 FLAT PANEL / Detector: IMAGE PLATE / Details: MIRRORS |
| Radiation | Monochromator: SI (111) / Protocol: SINGLE WAVELENGTH / Monochromatic (M) / Laue (L): M / Scattering type: x-ray |
| Radiation wavelength | Wavelength: 0.8148 Å / Relative weight: 1 |
| Reflection | Resolution: 2.5→25 Å / Num. obs: 45901 / % possible obs: 99.4 % / Observed criterion σ(I): 1.6 / Redundancy: 4.4 % / Biso Wilson estimate: 31.49 Å2 / Rmerge(I) obs: 0.1 / Net I/σ(I): 6.7 |
| Reflection shell | Resolution: 2.5→2.59 Å / Redundancy: 4.1 % / Rmerge(I) obs: 0.29 / Mean I/σ(I) obs: 1.6 / % possible all: 97.1 |
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Processing
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| Refinement | Method to determine structure: MOLECULAR REPLACEMENTStarting model: PDB ENTRY 3BKN Resolution: 2.59→36.047 Å / SU ML: 1.31 / σ(F): 1.36 / Phase error: 23.01 / Stereochemistry target values: MLHL Details: FE2 MODELED WITH 0.3 OCCUPANCY RESIDUES 160-162 IN ALL CHAINS MODELED WITH 0.5 OCCUPANCY. UNKNOWN LIGAND (POSSIBLY BLV) MODELED WITH 0.5 OCCUPANCY
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| Solvent computation | Shrinkage radii: 0.9 Å / VDW probe radii: 1.11 Å / Solvent model: FLAT BULK SOLVENT MODEL / Bsol: 37.434 Å2 / ksol: 0.327 e/Å3 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Displacement parameters |
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| Refinement step | Cycle: LAST / Resolution: 2.59→36.047 Å
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| Refine LS restraints |
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| LS refinement shell |
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