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Open data
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Basic information
| Entry | Database: PDB / ID: 1ck3 | ||||||
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| Title | N276D MUTANT OF ESCHERICHIA COLI TEM-1 BETA-LACTAMASE | ||||||
Components | BETA-LACTAMASE | ||||||
Keywords | HYDROLASE / BETA-LACTAMASE / CLAVULANATE-RESISTANT | ||||||
| Function / homology | Function and homology informationbeta-lactam antibiotic catabolic process / beta-lactamase activity / beta-lactamase / response to antibiotic Similarity search - Function | ||||||
| Biological species | ![]() | ||||||
| Method | X-RAY DIFFRACTION / OTHER / Resolution: 2.28 Å | ||||||
Authors | Swaren, P. / Maveyraud, L. / Samama, J.P. | ||||||
Citation | Journal: Biochemistry / Year: 1999Title: X-ray structure of the Asn276Asp variant of the Escherichia coli TEM-1 beta-lactamase: direct observation of electrostatic modulation in resistance to inactivation by clavulanic acid. Authors: Swaren, P. / Golemi, D. / Cabantous, S. / Bulychev, A. / Maveyraud, L. / Mobashery, S. / Samama, J.P. | ||||||
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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 | 1ck3.cif.gz | 64.3 KB | Display | PDBx/mmCIF format |
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| PDB format | pdb1ck3.ent.gz | 46 KB | Display | PDB format |
| PDBx/mmJSON format | 1ck3.json.gz | Tree view | PDBx/mmJSON format | |
| Others | Other downloads |
-Validation report
| Summary document | 1ck3_validation.pdf.gz | 417.2 KB | Display | wwPDB validaton report |
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| Full document | 1ck3_full_validation.pdf.gz | 419 KB | Display | |
| Data in XML | 1ck3_validation.xml.gz | 11.8 KB | Display | |
| Data in CIF | 1ck3_validation.cif.gz | 15.7 KB | Display | |
| Arichive directory | https://data.pdbj.org/pub/pdb/validation_reports/ck/1ck3 ftp://data.pdbj.org/pub/pdb/validation_reports/ck/1ck3 | HTTPS FTP |
-Related structure data
| Related structure data | ![]() 1btlS 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: 28985.061 Da / Num. of mol.: 1 / Mutation: V84I, A184V, N276D Source method: isolated from a genetically manipulated source Source: (gene. exp.) ![]() ![]() |
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| #2: Water | ChemComp-HOH / |
| Has protein modification | Y |
-Experimental details
-Experiment
| Experiment | Method: X-RAY DIFFRACTION / Number of used crystals: 3 |
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Sample preparation
| Crystal | Density Matthews: 1.93 Å3/Da / Density % sol: 36.25 % | |||||||||||||||||||||||||||||||||||
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| Crystal grow | pH: 7.8 / Details: pH 7.80 | |||||||||||||||||||||||||||||||||||
| Crystal grow | *PLUS Temperature: 4 ℃ / Method: vapor diffusion | |||||||||||||||||||||||||||||||||||
| Components of the solutions | *PLUS
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-Data collection
| Diffraction | Mean temperature: 277 K |
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| Diffraction source | Source: ROTATING ANODE / Type: RIGAKU RU300 / Wavelength: 1.5418 |
| Detector | Type: RIGAKU RAXIS IIC / Detector: IMAGE PLATE / Date: Apr 1, 1995 / Details: MIRRORS |
| Radiation | Monochromator: MIRRORS / Protocol: SINGLE WAVELENGTH / Monochromatic (M) / Laue (L): M / Scattering type: x-ray |
| Radiation wavelength | Wavelength: 1.5418 Å / Relative weight: 1 |
| Reflection | Resolution: 2.28→24.5 Å / Num. obs: 8771 / % possible obs: 81.6 % / Redundancy: 2.2 % / Biso Wilson estimate: 18 Å2 / Rmerge(I) obs: 0.038 / Net I/σ(I): 25.2 |
| Reflection shell | Resolution: 2.28→2.34 Å / Redundancy: 2.1 % / Rmerge(I) obs: 0.077 / Mean I/σ(I) obs: 15.1 / % possible all: 54 |
| Reflection | *PLUS Num. measured all: 19279 |
| Reflection shell | *PLUS % possible obs: 54 % / Num. unique obs: 416 / Num. measured obs: 853 |
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Processing
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| Refinement | Method to determine structure: OTHER Starting model: PDB ENTRY 1BTL Resolution: 2.28→23.6 Å / Rfactor Rfree error: 0.01 / Data cutoff high absF: 1537256.89 / Data cutoff low absF: 0 / Isotropic thermal model: RESTRAINED / Cross valid method: THROUGHOUT / σ(F): 0
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| Displacement parameters | Biso mean: 22.5 Å2
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| Refine analyze |
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| Refinement step | Cycle: LAST / Resolution: 2.28→23.6 Å
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| Refine LS restraints |
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| LS refinement shell | Resolution: 2.28→2.42 Å / Rfactor Rfree error: 0.03 / Total num. of bins used: 6
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| Xplor file | Serial no: 1 / Param file: PARHCSDX.PRO / Topol file: TOPHCSDX.PRO | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Software | *PLUS Name: X-PLOR / Version: 3.1 / Classification: refinement | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Refine LS restraints | *PLUS
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