3KWA
Polyamines inhibit carbonic anhydrases
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 | 7.8 | 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 | 41.08 |
Crystal Data
Unit Cell | |
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Length ( Å ) | Angle ( ˚ ) |
a = 41.43 | α = 90 |
b = 42.16 | β = 104.3 |
c = 72.25 | 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 | 2007-05-27 | M | SINGLE WAVELENGTH |
Radiation Source | |||||
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ID # | Source | Type | Wavelength List | Synchrotron Site | Beamline |
1 | SEALED TUBE | OXFORD DIFFRACTION ENHANCE ULTRA | 1.54 |
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 | 20 | 99 | 0.15 | 4.48 | 3.9 | 16497 | 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 | 2.1 | 0.4 | 1.25 | 3.6 | 8624 |
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 | 2 | 12.09 | 15634 | 823 | 99.42 | 0.23607 | 0.23336 | 0.2858 | RANDOM | 13.755 |
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] | |
-0.11 | 0.09 | 0.24 | -0.08 |
RMS Deviations | |
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Key | Refinement Restraint Deviation |
r_dihedral_angle_2_deg | 37.219 |
r_dihedral_angle_4_deg | 23.311 |
r_dihedral_angle_3_deg | 20.117 |
r_dihedral_angle_1_deg | 7.747 |
r_scangle_it | 2.702 |
r_scbond_it | 1.886 |
r_angle_refined_deg | 1.722 |
r_mcangle_it | 1.185 |
r_mcbond_it | 0.729 |
r_nbtor_refined | 0.307 |
Non-Hydrogen Atoms Used in Refinement | |
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Non-Hydrogen Atoms | Number |
Protein Atoms | 2039 |
Nucleic Acid Atoms | |
Solvent Atoms | 180 |
Heterogen Atoms | 16 |
Software
Software | |
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Software Name | Purpose |
CrysalisPro | data collection |
AMoRE | phasing |
REFMAC | refinement |
CrysalisPro | data reduction |
SCALEPACK | data scaling |