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Open data
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Basic information
| Entry | Database: PDB / ID: 4bcs | ||||||
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| Title | Crystal structure of an avidin mutant | ||||||
Components | CHIMERIC AVIDIN | ||||||
Keywords | BIOTIN-BINDING PROTEIN / LIGAND BINDING | ||||||
| Function / homology | Function and homology information | ||||||
| Biological species | ![]() | ||||||
| Method | X-RAY DIFFRACTION / SYNCHROTRON / MOLECULAR REPLACEMENT / Resolution: 1.8 Å | ||||||
Authors | Airenne, T.T. / Niederhauser, B. / Hytonen, V.P. / Kulomaa, M.S. / Johnson, M.S. | ||||||
Citation | Journal: Plos One / Year: 2014Title: A Novel Chimeric Avidin with Increased Thermal Stability Using DNA Shuffling. Authors: Taskinen, B. / Airenne, T.T. / Janis, J. / Rahikainen, R. / Johnson, M.S. / Kulomaa, M.S. / Hytonen, V.P. #1: Journal: J.Biotechnol. / Year: 2012 Title: DNA Family Shuffling within the Chicken Avidin Protein Family - a Shortcut to More Powerful Protein Tools. Authors: Niederhauser, B. / Siivonen, J. / Maatta, J.A. / Janis, J. / Kulomaa, M.S. / Hytonen, V.P. | ||||||
| History |
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| Remark 700 | SHEET DETERMINATION METHOD: DSSP THE SHEETS PRESENTED AS "AA" IN EACH CHAIN ON SHEET RECORDS BELOW ... SHEET DETERMINATION METHOD: DSSP THE SHEETS PRESENTED AS "AA" IN EACH CHAIN ON SHEET RECORDS BELOW IS ACTUALLY AN 8-STRANDED BARREL THIS IS REPRESENTED BY A 9-STRANDED SHEET IN WHICH THE FIRST AND LAST STRANDS ARE IDENTICAL. THE SHEETS PRESENTED AS "BA" IN EACH CHAIN ON SHEET RECORDS BELOW IS ACTUALLY AN 8-STRANDED BARREL THIS IS REPRESENTED BY A 9-STRANDED SHEET IN WHICH THE FIRST AND LAST STRANDS ARE IDENTICAL. |
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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 | 4bcs.cif.gz | 64.4 KB | Display | PDBx/mmCIF format |
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| PDB format | pdb4bcs.ent.gz | 47.6 KB | Display | PDB format |
| PDBx/mmJSON format | 4bcs.json.gz | Tree view | PDBx/mmJSON format | |
| Others | Other downloads |
-Validation report
| Summary document | 4bcs_validation.pdf.gz | 477.6 KB | Display | wwPDB validaton report |
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| Full document | 4bcs_full_validation.pdf.gz | 479.5 KB | Display | |
| Data in XML | 4bcs_validation.xml.gz | 13.1 KB | Display | |
| Data in CIF | 4bcs_validation.cif.gz | 17.6 KB | Display | |
| Arichive directory | https://data.pdbj.org/pub/pdb/validation_reports/bc/4bcs ftp://data.pdbj.org/pub/pdb/validation_reports/bc/4bcs | HTTPS FTP |
-Related structure data
| Related structure data | ![]() 1wbiS 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: (Code: given Matrix: (0.22495, -0.97432, -0.0098), Vector: |
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Components
-Protein , 1 types, 2 molecules AB
| #1: Protein | Mass: 13922.716 Da / Num. of mol.: 2 Source method: isolated from a genetically manipulated source Source: (gene. exp.) ![]() ![]() |
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-Non-polymers , 5 types, 118 molecules 








| #2: Chemical | ChemComp-ACT / | ||||
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| #3: Chemical | ChemComp-PEG / | ||||
| #4: Chemical | | #5: Chemical | #6: Water | ChemComp-HOH / | |
-Details
| Has protein modification | Y |
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| Sequence details | PRODUCED USING A DNA FAMILY SHUFFLING METHOD WITH GENES OF UNIPROT ENTRIES P02701 AND P56734 |
-Experimental details
-Experiment
| Experiment | Method: X-RAY DIFFRACTION / Number of used crystals: 1 |
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Sample preparation
| Crystal | Density Matthews: 2.1 Å3/Da / Density % sol: 41 % Description: THE POLYPEPTIDE CHAIN A OF 1WBI WAS USED IN MOLECULAR REPLACEMENT. |
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| Crystal grow | Method: vapor diffusion Details: 300 NL OF PROTEIN SOLUTION (7.36 MG PER ML; 50 MM SODIUM ACETATE, PH 4) WERE MIXED WITH 300 NL OF WELL SOLUTION (0.09 M PHOSPHATE, CITRATE, PH 4.2; 36% PEG 300). VAPOUR DIFFUSION WAS USED. ...Details: 300 NL OF PROTEIN SOLUTION (7.36 MG PER ML; 50 MM SODIUM ACETATE, PH 4) WERE MIXED WITH 300 NL OF WELL SOLUTION (0.09 M PHOSPHATE, CITRATE, PH 4.2; 36% PEG 300). VAPOUR DIFFUSION WAS USED. BEFORE CRYSTALLIZATION, BIOTIN SOLUTION (1 MG PER ML; 5 MM TRIS, PH 8.8 AND 8 MM CHES, PH 9.5) WAS ADDED TO THE PROTEIN SOLUTION IN 1 TO 10 (VOLUME PER VOLUME) RATIO, RESPECTIVELY. |
-Data collection
| Diffraction | Mean temperature: 100 K |
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| Diffraction source | Source: SYNCHROTRON / Site: ESRF / Beamline: ID14-1 / Wavelength: 0.9334 |
| Detector | Type: ADSC QUANTUM 210 / Detector: CCD / Date: Feb 25, 2011 |
| Radiation | Protocol: SINGLE WAVELENGTH / Monochromatic (M) / Laue (L): M / Scattering type: x-ray |
| Radiation wavelength | Wavelength: 0.9334 Å / Relative weight: 1 |
| Reflection | Resolution: 1.8→20 Å / Num. obs: 22157 / % possible obs: 100 % / Observed criterion σ(I): -3 / Redundancy: 7.2 % / Rmerge(I) obs: 0.04 / Net I/σ(I): 30 |
| Reflection shell | Resolution: 1.8→1.9 Å / Redundancy: 7.2 % / Rmerge(I) obs: 0.41 / Mean I/σ(I) obs: 5 / % possible all: 100 |
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Processing
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| Refinement | Method to determine structure: MOLECULAR REPLACEMENTStarting model: PDB ENTRY 1WBI Resolution: 1.8→19.6 Å / Cor.coef. Fo:Fc: 0.959 / Cor.coef. Fo:Fc free: 0.939 / SU B: 2.864 / SU ML: 0.09 / Cross valid method: THROUGHOUT / ESU R: 0.139 / ESU R Free: 0.129 / Stereochemistry target values: MAXIMUM LIKELIHOOD Details: HYDROGENS HAVE BEEN ADDED IN THE RIDING POSITIONS. HYDROGENS HAVE BEEN USED IF PRESENT IN THE INPUT. U VALUES REFINED INDIVIDUALLY
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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: 26.475 Å2
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| Refinement step | Cycle: LAST / Resolution: 1.8→19.6 Å
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| Refine LS restraints |
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