Joint neutron and x-ray crystal structure of human carbonic anhydrase IX mimic (saccharin).
X-RAY DIFFRACTION - NEUTRON DIFFRACTION
Crystallization
Crystalization Experiments |
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ID | Method | pH | Temperature | Details |
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1 | VAPOR DIFFUSION, SITTING DROP | 8.5 | 293 | 1.2 M sodium citrate, 100 mM Tris pH 8.5 |
Crystal Properties |
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Matthews coefficient | Solvent content |
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2.15 | 42.75 |
Crystal Data
Unit Cell |
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Length ( Å ) | Angle ( ˚ ) |
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a = 42.53 | α = 90 |
b = 41.83 | β = 104.04 |
c = 72.7 | γ = 90 |
Symmetry |
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Space Group | P 1 21 1 |
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Diffraction
Diffraction Experiment |
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ID # | Crystal ID | Scattering Type | Data Collection Temperature | Detector | Detector Type | Details | Collection Date | Monochromator | Protocol |
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1 | 1 | neutron | 293 | IMAGE PLATE | MAATEL BIODIFF | | 2015-11-19 | M | SINGLE WAVELENGTH |
2 | 1 | x-ray | 293 | CCD | MAR CCD 130 mm | | 2015-08-15 | M | SINGLE WAVELENGTH |
Radiation Source |
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ID # | Source | Type | Wavelength List | Synchrotron Site | Beamline |
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1 | NUCLEAR REACTOR | FRM II BEAMLINE BIODIFF | 2.67 | FRM II | BIODIFF |
2 | SYNCHROTRON | MAX II BEAMLINE I911-3 | 1.00 | MAX II | I911-3 |
Data Collection
Overall |
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ID # | Resolution (High) | Resolution (Low) | Percent Possible (Observed) | R Merge I (Observed) | R Sym I (Observed) | Rrim I (All) | Rpim I (All) | CC (Half) | R Split (All) | 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 |
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1 | 2 | 50 | 92.2 | 0.22 | | | | | | 3.7 | 2.2 | | 15763 | | | |
2 | 1.2 | 35 | 95.7 | | | | | | | 13.4 | 2.9 | | 74523 | | | |
Highest Resolution Shell |
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ID # | Resolution (High) | Resolution (Low) | Percent Possible (All) | R Merge I (Observed) | R-Sym I (Observed) | Rrim I (All) | Rpim I (All) | CC (Half) | R Split (All) | Mean I Over Sigma (Observed) | Redundancy | Number Unique Reflections (All) |
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1 | 2 | 2.07 | | 0.645 | | | | | | | | |
2 | 1.2 | 1.23 | | | | | | | | | | |
Refinement
Statistics |
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Diffraction ID | Structure Solution Method | Resolution (High) | Resolution (Low) | Cut-off Sigma (I) | Cut-off Sigma (F) | 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 |
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X-RAY DIFFRACTION | MOLECULAR REPLACEMENT | 1.5 | 25.593 | | 1.36 | | 38579 | 3517 | 96.54 | | 0.1374 | 0.1345 | 0.1657 | | |
NEUTRON DIFFRACTION | MOLECULAR REPLACEMENT | 2 | 26.961 | | | | 15682 | 1559 | 92.27 | | 0.2073 | 0.2048 | 0.2305 | | |
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] |
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| | | | | |
| | | | | |
RMS Deviations |
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Key | Refinement Restraint Deviation |
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f_dihedral_angle_d | 19.922 |
f_dihedral_angle_d | 19.922 |
f_angle_d | 1.302 |
f_angle_d | 1.302 |
f_chiral_restr | 0.08 |
f_chiral_restr | 0.08 |
f_bond_d | 0.012 |
f_bond_d | 0.012 |
f_plane_restr | 0.007 |
f_plane_restr | 0.007 |
Non-Hydrogen Atoms Used in Refinement |
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Non-Hydrogen Atoms | Number |
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Protein Atoms | 2052 |
Nucleic Acid Atoms | |
Solvent Atoms | 194 |
Heterogen Atoms | 13 |
Software
Software |
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Software Name | Purpose |
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PHENIX | refinement |
XDS | data reduction |
XDS | data scaling |