2QUM
Crystal structure of D-tagatose 3-epimerase from Pseudomonas cichorii with D-tagatose
X-RAY DIFFRACTION
Starting Model(s)
Initial Refinement Model(s) | |||
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Type | Source | Accession Code | Details |
experimental model | PDB | 2OU4 | PDB ENTRY 2OU4 |
Crystallization
Crystalization Experiments | ||||
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ID | Method | pH | Temperature | Details |
1 | VAPOR DIFFUSION, HANGING DROP | 7.5 | 298 | 20% PEG 10000, 0.1M HEPES, 0.1M tri-sodium citrate, pH 7.5, VAPOR DIFFUSION, HANGING DROP, temperature 298.0K |
Crystal Properties | |
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Matthews coefficient | Solvent content |
2.38 | 48.23 |
Crystal Data
Unit Cell | |
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Length ( Å ) | Angle ( ˚ ) |
a = 49.414 | α = 90 |
b = 139.432 | β = 104.04 |
c = 92.86 | γ = 90 |
Symmetry | |
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Space Group | P 1 21 1 |
Diffraction
Diffraction Experiment | ||||||||||||||
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ID # | Crystal ID | Scattering Type | Data Collection Temperature | Detector | Detector Type | Details | Collection Date | Monochromator | Protocol | |||||
1 | 1 | x-ray | 100 | CCD | ADSC QUANTUM 4 | 2007-01-28 | M | SINGLE WAVELENGTH |
Radiation Source | |||||
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ID # | Source | Type | Wavelength List | Synchrotron Site | Beamline |
1 | SYNCHROTRON | PHOTON FACTORY BEAMLINE BL-6A | 0.978 | Photon Factory | BL-6A |
Data Collection
Overall | |||||||||||||||||||
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ID # | Resolution (High) | Resolution (Low) | Percent Possible (Observed) | R Merge I (Observed) | Net I Over Average Sigma (I) | Redundancy | Number Reflections (All) | Number Reflections (Observed) | Observed Criterion Sigma (F) | Observed Criterion Sigma (I) | B (Isotropic) From Wilson Plot | ||||||||
1 | 2.28 | 50 | 99.4 | 0.099 | 7.4 | 3.6 | 55980 | 55980 | 14.5 |
Highest Resolution Shell | |||||||||||||||||||
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ID # | Resolution (High) | Resolution (Low) | Percent Possible (All) | Percent Possible (Observed) | R Merge I (Observed) | Mean I Over Sigma (Observed) | Redundancy | Number Unique Reflections (All) | |||||||||||
2.28 | 2.36 | 98.5 | 0.29 | 4.3 | 3.4 | 5571 |
Refinement
Statistics | |||||||||||||||||||
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Diffraction ID | Structure Solution Method | Cross Validation method | Starting model | Resolution (High) | Resolution (Low) | Number Reflections (All) | Number Reflections (Observed) | Number Reflections (R-Free) | Percent Reflections (Observed) | R-Factor (All) | R-Factor (Observed) | R-Work | R-Free | R-Free Selection Details | Mean Isotropic B | ||||
X-RAY DIFFRACTION | MOLECULAR REPLACEMENT | THROUGHOUT | PDB ENTRY 2OU4 | 2.28 | 41.31 | 53686 | 53686 | 5431 | 96.7 | 0.19 | 0.185 | 0.185 | 0.239 | RANDOM | 20.2 |
Temperature Factor Modeling | ||||||
---|---|---|---|---|---|---|
Anisotropic B[1][1] | Anisotropic B[1][2] | Anisotropic B[1][3] | Anisotropic B[2][2] | Anisotropic B[2][3] | Anisotropic B[3][3] | |
1.02 | 1.02 | -5.06 | 4.04 |
RMS Deviations | |
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Key | Refinement Restraint Deviation |
c_dihedral_angle_d | 21.9 |
c_angle_deg | 1.2 |
c_improper_angle_d | 0.78 |
c_bond_d | 0.006 |
Non-Hydrogen Atoms Used in Refinement | |
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Non-Hydrogen Atoms | Number |
Protein Atoms | 9152 |
Nucleic Acid Atoms | |
Solvent Atoms | 762 |
Heterogen Atoms | 52 |
Software
Software | |
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Software Name | Purpose |
CNS | refinement |
ADSC | data collection |
HKL-2000 | data reduction |
HKL-2000 | data scaling |
MOLREP | phasing |