5JGT
Human carbonic anhydrase II (F131Y/L198A) complexed with 1,3-thiazole-2-sulfonamide
X-RAY DIFFRACTION
Starting Model(s)
Initial Refinement Model(s) | |||
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Type | Source | Accession Code | Details |
experimental model | PDB | 3S73 |
Crystallization
Crystalization Experiments | ||||
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ID | Method | pH | Temperature | Details |
1 | VAPOR DIFFUSION, HANGING DROP | 277.15 | We soaked monoclinic crystals of HCAII with BTA by carrying out the following steps: (i) We prepared soaking solutions containing 1.32 M sodium citrate, 1 mM ZnSO4, 100 mM Tris-HCl (pH 7.8), and 5 mM ligand. (ii) We combined 4 uL of soaking solution and 1-2 crystals of HCAII within a drop on the surface of a reservoir cover (EasyXtal CrystalSupport, Qiagen). (iii) To a clear plastic reservoir in a 15-reservoir plate (EasyXtal, Qiagen), we added 1 mL of soaking solution (without ligand present). We attached the reservoir cover to the reservoir and left the entire setup at 4 deg C for 1 week. |
Crystal Properties | |
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Matthews coefficient | Solvent content |
2.12 | 41.86 |
Crystal Data
Unit Cell | |
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Length ( Å ) | Angle ( ˚ ) |
a = 42.41 | α = 90 |
b = 41.47 | β = 104.6 |
c = 72.39 | 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 315r | 2015-04-15 | M | SINGLE WAVELENGTH |
Radiation Source | |||||
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ID # | Source | Type | Wavelength List | Synchrotron Site | Beamline |
1 | SYNCHROTRON | ALS BEAMLINE 8.2.1 | 1.1 | ALS | 8.2.1 |
Data Collection
Overall | |||||||||||||||||||
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ID # | Resolution (High) | Resolution (Low) | Percent Possible (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 | 1.1 | 40.092 | 75.8 | 18.6 | 4.1 | 146912 |
Refinement
Statistics | |||||||||||||||||||
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Diffraction ID | Structure Solution Method | Cross Validation method | Starting model | Resolution (High) | Resolution (Low) | Cut-off Sigma (F) | Number Reflections (Observed) | Number Reflections (R-Free) | Percent Reflections (Observed) | R-Factor (Observed) | R-Work | R-Free | Mean Isotropic B | ||||||
X-RAY DIFFRACTION | MOLECULAR REPLACEMENT | FREE R-VALUE | 3S73 | 1.1 | 40.092 | 1.34 | 146912 | 3699 | 75.8 | 0.1199 | 0.1194 | 0.1378 |
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] | |
RMS Deviations | |
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Key | Refinement Restraint Deviation |
f_dihedral_angle_d | 14.2 |
f_angle_d | 1.374 |
f_chiral_restr | 0.088 |
f_bond_d | 0.011 |
f_plane_restr | 0.008 |
Non-Hydrogen Atoms Used in Refinement | |
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Non-Hydrogen Atoms | Number |
Protein Atoms | 2061 |
Nucleic Acid Atoms | |
Solvent Atoms | 425 |
Heterogen Atoms | 19 |
Software
Software | |
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Software Name | Purpose |
PHENIX | refinement |
xia2 | data reduction |
PHASER | phasing |
xia2 | data scaling |