2O4Z
Crystal structure of the Carbonic Anhydrase II complexed with hydroxysulfamide inhibitor
X-RAY DIFFRACTION
Starting Model(s)
Initial Refinement Model(s) | |||
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Type | Source | Accession Code | Details |
experimental model | PDB | 1CA2 | pdb entry 1CA2 |
Crystallization
Crystalization Experiments | ||||
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ID | Method | pH | Temperature | Details |
1 | VAPOR DIFFUSION, HANGING DROP | 277 | Tris.HCl, pH 7.7-7.8, sodium 4-(hydroxymercury)benzoate , VAPOR DIFFUSION, HANGING DROP, temperature 277K |
Crystal Properties | |
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Matthews coefficient | Solvent content |
2.08 | 40.92 |
Crystal Data
Unit Cell | |
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Length ( Å ) | Angle ( ˚ ) |
a = 42.1 | α = 90 |
b = 41.39 | β = 104.38 |
c = 72.3 | 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 | OXFORD SAPPHIRE CCD | 2006-10-24 | M | SINGLE WAVELENGTH |
Radiation Source | |||||
---|---|---|---|---|---|
ID # | Source | Type | Wavelength List | Synchrotron Site | Beamline |
1 | SEALED TUBE | OXFORD DIFFRACTION ENHANCE ULTRA |
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 | 2.1 | 20 | 98.7 | 0.169 | 7.6 | 4.5 | 14225 | 2 |
Highest Resolution Shell | |||||||||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
ID # | Resolution (High) | Resolution (Low) | Percent Possible (All) | Percent Possible (Observed) | R-Sym I (Observed) | Mean I Over Sigma (Observed) | Redundancy | Number Unique Reflections (All) | |||||||||||
2.1 | 2.17 | 97.6 | 0.429 | 1.5 | 2.7 | 1427 |
Refinement
Statistics | |||||||||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
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 1CA2 | 2.1 | 20 | 13513 | 683 | 99.28 | 0.21048 | 0.2076 | 0.26632 | RANDOM | 15.667 |
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] | |
-0.12 | 0.37 | -0.43 |
RMS Deviations | |
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Key | Refinement Restraint Deviation |
r_dihedral_angle_2_deg | 33.44 |
r_dihedral_angle_4_deg | 19.425 |
r_dihedral_angle_3_deg | 18.516 |
r_dihedral_angle_1_deg | 6.605 |
r_scangle_it | 2.562 |
r_scbond_it | 1.749 |
r_angle_refined_deg | 1.484 |
r_mcangle_it | 1.067 |
r_mcbond_it | 0.602 |
r_nbtor_refined | 0.309 |
Non-Hydrogen Atoms Used in Refinement | |
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Non-Hydrogen Atoms | Number |
Protein Atoms | 2046 |
Nucleic Acid Atoms | |
Solvent Atoms | 162 |
Heterogen Atoms | 8 |
Software
Software | |
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Software Name | Purpose |
REFMAC | refinement |
CrysalisPro | data collection |
CrysalisPro | data reduction |
CCP4 | data scaling |
CNS | phasing |