1OA8
AXH domain of human spinocerebellar ataxin-1
X-RAY DIFFRACTION
Crystallization
Crystalization Experiments | ||||
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ID | Method | pH | Temperature | Details |
1 | VAPOR DIFFUSION, SITTING DROP | 7 | 290 | PROTEIN WAS CRYSTALLIZED FROM 0.1M TRIS/HCL, PH 7.0, 0.2M AMMONIUM SULPHATE, 5 MM DTT, 15% PEG 4000, 20% GLYCEROL, AT 290K |
Crystal Properties | |
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Matthews coefficient | Solvent content |
2.37 | 40 |
Crystal Data
Unit Cell | |
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Length ( Å ) | Angle ( ˚ ) |
a = 48.783 | α = 90 |
b = 82.441 | β = 90 |
c = 137.781 | γ = 90 |
Symmetry | |
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Space Group | P 21 21 21 |
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 CCD | MIRRORS | 2002-11-15 | M | MAD |
Radiation Source | |||||
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ID # | Source | Type | Wavelength List | Synchrotron Site | Beamline |
1 | SYNCHROTRON | SRS BEAMLINE PX14.2 | 0.960,0.97916,0.97966 | SRS | PX14.2 |
Data Collection
Overall | |||||||||||||||||||
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ID # | Resolution (High) | Resolution (Low) | Percent Possible (Observed) | R Merge 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 | 1.7 | 70.71 | 99.6 | 0.065 | 5.9 | 4.3 | 62044 |
Highest Resolution Shell | |||||||||||||||||||
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ID # | Resolution (High) | Resolution (Low) | Percent Possible (All) | Percent Possible (Observed) | R Merge I (Observed) | Mean I Over Sigma (Observed) | Redundancy | Number Unique Reflections (All) | |||||||||||
1 | 1.7 | 1.79 | 98.1 | 0.416 | 1.7 | 3.4 |
Refinement
Statistics | |||||||||||||||||||
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Diffraction ID | Structure Solution Method | Cross Validation method | Resolution (High) | Resolution (Low) | Number Reflections (Observed) | Number Reflections (R-Free) | Percent Reflections (Observed) | R-Work | R-Free | R-Free Selection Details | Mean Isotropic B | ||||||||
X-RAY DIFFRACTION | MAD | THROUGHOUT | 1.7 | 70.71 | 58574 | 3125 | 99.5 | 0.21 | 0.252 | RANDOM | 25.8 |
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] | |
1.39 | -1.09 | -0.3 |
RMS Deviations | |
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Key | Refinement Restraint Deviation |
r_dihedral_angle_1_deg | 6.668 |
r_scangle_it | 5.64 |
r_scbond_it | 3.333 |
r_mcangle_it | 2.253 |
r_angle_refined_deg | 1.78 |
r_mcbond_it | 1.292 |
r_symmetry_hbond_refined | 0.239 |
r_symmetry_vdw_refined | 0.233 |
r_nbd_refined | 0.225 |
r_metal_ion_refined | 0.176 |
Non-Hydrogen Atoms Used in Refinement | |
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Non-Hydrogen Atoms | Number |
Protein Atoms | 3934 |
Nucleic Acid Atoms | |
Solvent Atoms | 378 |
Heterogen Atoms | 3 |
Software
Software | |
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Software Name | Purpose |
REFMAC | refinement |
MOSFLM | data reduction |
SCALA | data scaling |
SOLVE | phasing |