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Yorodumi- PDB-3osq: Maltose-bound maltose sensor engineered by insertion of circularl... -
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Open data
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Basic information
| Entry | Database: PDB / ID: 3osq | ||||||||||||
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| Title | Maltose-bound maltose sensor engineered by insertion of circularly permuted green fluorescent protein into E. coli maltose binding protein at position 175 | ||||||||||||
Components | Maltose-binding periplasmic protein,Green fluorescent protein | ||||||||||||
Keywords | FLUORESCENT PROTEIN / Transport Protein / Engineered Protein / Sensor Protein / MBP / GFP / Maltose Sensor | ||||||||||||
| Function / homology | Function and homology informationcarbohydrate transmembrane transporter activity / maltose binding / maltose transport / maltodextrin transmembrane transport / ATP-binding cassette (ABC) transporter complex, substrate-binding subunit-containing / bioluminescence / generation of precursor metabolites and energy / outer membrane-bounded periplasmic space Similarity search - Function | ||||||||||||
| Biological species | ![]() ![]() | ||||||||||||
| Method | X-RAY DIFFRACTION / SYNCHROTRON / MOLECULAR REPLACEMENT / Resolution: 1.9 Å | ||||||||||||
Authors | Echevarria, I.M. / Marvin, J.S. / Looger, L.L. / Schreiter, E.R. | ||||||||||||
Citation | Journal: Proteins / Year: 2011Title: A genetically encoded, high-signal-to-noise maltose sensor. Authors: Marvin, J.S. / Schreiter, E.R. / Echevarria, I.M. / Looger, L.L. | ||||||||||||
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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 | 3osq.cif.gz | 257.9 KB | Display | PDBx/mmCIF format |
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| PDB format | pdb3osq.ent.gz | 204.5 KB | Display | PDB format |
| PDBx/mmJSON format | 3osq.json.gz | Tree view | PDBx/mmJSON format | |
| Others | Other downloads |
-Validation report
| Summary document | 3osq_validation.pdf.gz | 903.2 KB | Display | wwPDB validaton report |
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| Full document | 3osq_full_validation.pdf.gz | 908.2 KB | Display | |
| Data in XML | 3osq_validation.xml.gz | 30.2 KB | Display | |
| Data in CIF | 3osq_validation.cif.gz | 41.8 KB | Display | |
| Arichive directory | https://data.pdbj.org/pub/pdb/validation_reports/os/3osq ftp://data.pdbj.org/pub/pdb/validation_reports/os/3osq | HTTPS FTP |
-Related structure data
| Related structure data | ![]() 3osrC ![]() 1anfS ![]() 3ek4S C: citing same article ( 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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| Unit cell |
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Components
| #1: Protein | Mass: 73705.000 Da / Num. of mol.: 1 Fragment: GFP P42212 residues 2-146, 147-238, MBP P0AEX9 residues 27-199, 201-396 Source method: isolated from a genetically manipulated source Source: (gene. exp.) ![]() ![]() Gene: malE, Z5632, ECs5017, GFP / Plasmid: pRSET / Production host: ![]() | ||||
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| #2: Polysaccharide | alpha-D-glucopyranose-(1-4)-alpha-D-glucopyranose / alpha-maltose | ||||
| #3: Chemical | | #4: Water | ChemComp-HOH / | Has protein modification | Y | |
-Experimental details
-Experiment
| Experiment | Method: X-RAY DIFFRACTION / Number of used crystals: 1 |
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Sample preparation
| Crystal | Density Matthews: 2.92 Å3/Da / Density % sol: 57.84 % |
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| Crystal grow | Temperature: 296 K / Method: vapor diffusion, hanging drop / pH: 5.6 Details: 0.5 M Ammonium sulfate, 0.1M Sodium citrate tribasic dihydrate pH 5.6, 1.0 M Lithium sulfate monohydrate, VAPOR DIFFUSION, HANGING DROP, temperature 296K |
-Data collection
| Diffraction | Mean temperature: 100 K |
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| Diffraction source | Source: SYNCHROTRON / Site: APS / Beamline: 31-ID / Wavelength: 0.9793 Å |
| Detector | Type: RAYONIX MX225HE / Detector: CCD / Date: Jul 21, 2010 |
| Radiation | Monochromator: Diamond (111) double crystal / Protocol: SINGLE WAVELENGTH / Monochromatic (M) / Laue (L): M / Scattering type: x-ray |
| Radiation wavelength | Wavelength: 0.9793 Å / Relative weight: 1 |
| Reflection | Resolution: 1.9→31.41 Å / Num. obs: 68612 / % possible obs: 99.9 % / Observed criterion σ(F): 0 / Observed criterion σ(I): 0 / Redundancy: 11.1 % / Biso Wilson estimate: 26.6 Å2 / Rmerge(I) obs: 0.096 / Net I/σ(I): 14.4 |
| Reflection shell | Resolution: 1.9→2 Å / % possible all: 100 |
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Processing
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| Refinement | Method to determine structure: MOLECULAR REPLACEMENTStarting model: PDB entries 3EK4, 1ANF Resolution: 1.9→29.06 Å / Cor.coef. Fo:Fc: 0.963 / Cor.coef. Fo:Fc free: 0.95 / SU B: 5.044 / SU ML: 0.069 / Cross valid method: THROUGHOUT / σ(F): 0 / ESU R Free: 0.108 / Stereochemistry target values: Engh & Huber / 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: 1.4 Å / Solvent model: MASK | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Displacement parameters | Biso mean: 29.188 Å2
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| Refinement step | Cycle: LAST / Resolution: 1.9→29.06 Å
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| Refine LS restraints |
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| LS refinement shell | Resolution: 1.9→1.949 Å / Total num. of bins used: 20
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| Refinement TLS params. | Method: refined / Refine-ID: X-RAY DIFFRACTION
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| Refinement TLS group |
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