3EFT
Crystal structure of the complex between Carbonic Anhydrase II and a spin-labeled sulfonamide incorporating TEMPO moiety
X-RAY DIFFRACTION
Crystallization
Crystalization Experiments | ||||
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ID | Method | pH | Temperature | Details |
1 | VAPOR DIFFUSION, HANGING DROP | 277 | 50mM Tris.HCl pH 7.7-7.8, 2mM sodium 4-(hydroxymercury)benzoate, VAPOR DIFFUSION, HANGING DROP, temperature 277K |
Crystal Properties | |
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Matthews coefficient | Solvent content |
2.09 | 41.19 |
Crystal Data
Unit Cell | |
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Length ( Å ) | Angle ( ˚ ) |
a = 42.13 | α = 90 |
b = 41.5 | β = 104.3 |
c = 72.31 | γ = 90 |
Symmetry | |
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Space Group | P 1 21 1 |
Diffraction
Diffraction Experiment | ||||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
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 | 2008-06-01 | M | SINGLE WAVELENGTH |
Radiation Source | |||||
---|---|---|---|---|---|
ID # | Source | Type | Wavelength List | Synchrotron Site | Beamline |
1 | SEALED TUBE | OXFORD DIFFRACTION ENHANCE ULTRA | 1.5418 |
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 | 1.84 | 20 | 89.4 | 0.09 | 13.1 | 2.9 | 20861 | 20988 | 2 |
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 1CA2 | 1.85 | 11.81 | 19758 | 1040 | 99.5 | 0.19469 | 0.19231 | 0.2403 | RANDOM | 13.824 |
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] | |
0.06 | 0.16 | -0.12 |
RMS Deviations | |
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Key | Refinement Restraint Deviation |
r_dihedral_angle_2_deg | 35.611 |
r_dihedral_angle_4_deg | 18.228 |
r_dihedral_angle_3_deg | 16.366 |
r_dihedral_angle_1_deg | 5.942 |
r_scangle_it | 2.341 |
r_scbond_it | 1.586 |
r_angle_refined_deg | 1.289 |
r_mcangle_it | 0.923 |
r_mcbond_it | 0.716 |
r_nbtor_refined | 0.305 |
Non-Hydrogen Atoms Used in Refinement | |
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Non-Hydrogen Atoms | Number |
Protein Atoms | 2078 |
Nucleic Acid Atoms | |
Solvent Atoms | 217 |
Heterogen Atoms | 28 |
Software
Software | |
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Software Name | Purpose |
CrysalisPro | data collection |
AMoRE | phasing |
REFMAC | refinement |
CrysalisPro | data reduction |
CrysalisPro | data scaling |