3QUB
Crystal structure of pyrophosphatase from bacteroides thetaiotaomicron, glu47ala mutant complexed with sulfate
X-RAY DIFFRACTION
Starting Model(s)
Initial Refinement Model(s) | |||
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Type | Source | Accession Code | Details |
experimental model | PDB | 3QU2 | PDB ENTRY 3QU2 |
Crystallization
Crystalization Experiments | ||||
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ID | Method | pH | Temperature | Details |
1 | VAPOR DIFFUSION, SITTING DROP | 8.5 | 294 | 0.1M TRIS-HCL, PH 8.5, 30% PEG4000, 200MM LITHIUM SULFATE, 5MM MAGNESIUM CHLORIDE, VAPOR DIFFUSION, SITTING DROP, TEMPERATURE 294K |
Crystal Properties | |
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Matthews coefficient | Solvent content |
3.04 | 59.6 |
Crystal Data
Unit Cell | |
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Length ( Å ) | Angle ( ˚ ) |
a = 85.382 | α = 90 |
b = 85.382 | β = 90 |
c = 78.915 | γ = 120 |
Symmetry | |
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Space Group | P 31 2 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 | 90 | CCD | ADSC QUANTUM 315 | MIRRORS | 2009-09-24 | M | SINGLE WAVELENGTH |
Radiation Source | |||||
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ID # | Source | Type | Wavelength List | Synchrotron Site | Beamline |
1 | SYNCHROTRON | NSLS BEAMLINE X29A | NSLS | X29A |
Data Collection
Overall | |||||||||||||||||||
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ID # | Resolution (High) | Resolution (Low) | Percent Possible (Observed) | R Sym 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 | 1.9 | 40 | 99.1 | 0.137 | 4.6 | 4.4 | 27369 | -5 | 37.003 |
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) | |||||||||||
1 | 1.9 | 1.97 | 99.6 | 0.77 | 1 | 3.4 |
Refinement
Statistics | |||||||||||||||||||
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Diffraction ID | Structure Solution Method | Cross Validation method | Starting model | Resolution (High) | Resolution (Low) | Number Reflections (Observed) | Number Reflections (R-Free) | Percent Reflections (Observed) | R-Factor (Observed) | R-Work | R-Free | R-Free Selection Details | Mean Isotropic B | ||||||
X-RAY DIFFRACTION | MOLECULAR REPLACEMENT | THROUGHOUT | PDB ENTRY 3QU2 | 1.9 | 20 | 25682 | 846 | 99.85 | 0.19918 | 0.19782 | 0.24274 | RANDOM | 43.083 |
Temperature Factor Modeling | ||||||
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Anisotropic B[1][1] | Anisotropic B[1][2] | Anisotropic B[1][3] | Anisotropic B[2][2] | Anisotropic B[2][3] | Anisotropic B[3][3] | |
1.96 | 0.98 | 1.96 | -2.93 |
RMS Deviations | |
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Key | Refinement Restraint Deviation |
r_dihedral_angle_2_deg | 37.447 |
r_dihedral_angle_4_deg | 25.316 |
r_dihedral_angle_3_deg | 15.603 |
r_scangle_it | 8.219 |
r_scbond_it | 6.425 |
r_dihedral_angle_1_deg | 5.522 |
r_mcangle_it | 4.724 |
r_mcbond_it | 3.42 |
r_angle_refined_deg | 1.253 |
r_nbtor_refined | 0.293 |
Non-Hydrogen Atoms Used in Refinement | |
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Non-Hydrogen Atoms | Number |
Protein Atoms | 1737 |
Nucleic Acid Atoms | |
Solvent Atoms | 191 |
Heterogen Atoms | 5 |
Software
Software | |
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Software Name | Purpose |
PHASER | phasing |
REFMAC | refinement |
HKL-2000 | data reduction |
HKL-2000 | data scaling |