3IOT
Huntingtin amino-terminal region with 17 Gln residues - crystal C92-b
X-RAY DIFFRACTION
Crystallization
Crystalization Experiments | ||||
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ID | Method | pH | Temperature | Details |
1 | VAPOR DIFFUSION, HANGING DROP | 278 | 12% PEG 4000, 200 mM Zn acetate, 200 mM Sodium acetate, 100 mM Sodium Cacodylate pH 6.5-7.4, VAPOR DIFFUSION, HANGING DROP, temperature 278K |
Crystal Properties | |
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Matthews coefficient | Solvent content |
3.97 | 69.03 |
Crystal Data
Unit Cell | |
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Length ( Å ) | Angle ( ˚ ) |
a = 163.25 | α = 90 |
b = 101.36 | β = 91.83 |
c = 137.03 | γ = 90 |
Symmetry | |
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Space Group | C 1 2 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 | ADSC QUANTUM 315 | LN2 cooled first crystal, sagitally focusing 2nd crystal, Rosenbaum-Rock vertical focusing mirror, beam defining slits | M | SINGLE WAVELENGTH |
Radiation Source | |||||
---|---|---|---|---|---|
ID # | Source | Type | Wavelength List | Synchrotron Site | Beamline |
1 | SYNCHROTRON | APS BEAMLINE 19-ID | 0.9800 | APS | 19-ID |
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 | 2.71 | 50 | 0.09 | 3 | 40594 |
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 3IOR | 3.5 | 37.36 | 18671 | 975 | 69.22 | 0.24957 | 0.24722 | 0.29516 | RANDOM | 56.578 |
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] | |
0.87 | -0.46 | 0.84 | -1.75 |
RMS Deviations | |
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Key | Refinement Restraint Deviation |
r_dihedral_angle_2_deg | 40.158 |
r_dihedral_angle_3_deg | 19.705 |
r_dihedral_angle_4_deg | 15.103 |
r_dihedral_angle_1_deg | 3.927 |
r_angle_refined_deg | 1.149 |
r_mcangle_it | 0.577 |
r_scangle_it | 0.522 |
r_rigid_bond_restr | 0.369 |
r_scbond_it | 0.353 |
r_mcbond_it | 0.326 |
Non-Hydrogen Atoms Used in Refinement | |
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Non-Hydrogen Atoms | Number |
Protein Atoms | 9177 |
Nucleic Acid Atoms | |
Solvent Atoms | |
Heterogen Atoms | 18 |
Software
Software | |
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Software Name | Purpose |
REFMAC | refinement |
HKL-2000 | data reduction |
HKL-2000 | data scaling |
PHASER | phasing |