4IFN
Crystal Structures of apo Keap1, Keap1-peptide, and Keap1-compound complexes
X-RAY DIFFRACTION
Crystallization
Crystalization Experiments | ||||
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ID | Method | pH | Temperature | Details |
1 | VAPOR DIFFUSION, SITTING DROP | 8.1 | 277 | 0.6 M Sodium Formate, 0.2 M Ammonium Acetate, 0.1 M Tris pH 8.1, VAPOR DIFFUSION, SITTING DROP, temperature 277K |
Crystal Properties | |
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Matthews coefficient | Solvent content |
3.45 | 64.38 |
Crystal Data
Unit Cell | |
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Length ( Å ) | Angle ( ˚ ) |
a = 124.878 | α = 90 |
b = 75.258 | β = 106.34 |
c = 48.754 | γ = 90 |
Symmetry | |
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Space Group | C 1 2 1 |
Diffraction
Diffraction Experiment | ||||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
ID # | Crystal ID | Scattering Type | Data Collection Temperature | Detector | Detector Type | Details | Collection Date | Monochromator | Protocol | |||||
1 | 1 | x-ray | 180 | IMAGE PLATE | RIGAKU RAXIS HTC | 2012-08-30 | M | SINGLE WAVELENGTH |
Radiation Source | |||||
---|---|---|---|---|---|
ID # | Source | Type | Wavelength List | Synchrotron Site | Beamline |
1 | ROTATING ANODE | RIGAKU MICROMAX-007 HF | 1.5418 |
Data Collection
Overall | |||||||||||||||||||
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ID # | Resolution (High) | Resolution (Low) | Percent Possible (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 | 2.4 | 35.28 | 96.69 | 15724 | 15676 | 1 | 1 |
Highest Resolution Shell | |||||||||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
ID # | Resolution (High) | Resolution (Low) | Percent Possible (All) | Percent Possible (Observed) | Mean I Over Sigma (Observed) | Redundancy | Number Unique Reflections (All) | ||||||||||||
1 | 2.4 | 2.462 | 99.37 |
Refinement
Statistics | |||||||||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Diffraction ID | Structure Solution Method | Cross Validation method | Resolution (High) | Resolution (Low) | Number Reflections (All) | Number Reflections (Observed) | Number Reflections (R-Free) | Percent Reflections (Observed) | R-Factor (All) | R-Factor (Observed) | R-Work | R-Free | R-Free Selection Details | Mean Isotropic B | |||||
X-RAY DIFFRACTION | MOLECULAR REPLACEMENT | THROUGHOUT | 2.4 | 35.28 | 15725 | 15676 | 837 | 96.69 | 0.2785 | 0.27847 | 0.27365 | 0.35244 | RANDOM | 33.217 |
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] | |
0.02 | -0.04 | 0.02 |
RMS Deviations | |
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Key | Refinement Restraint Deviation |
r_dihedral_angle_2_deg | 35.141 |
r_dihedral_angle_4_deg | 21.099 |
r_dihedral_angle_3_deg | 19.937 |
r_dihedral_angle_1_deg | 8.513 |
r_scangle_it | 3.172 |
r_scbond_it | 2.06 |
r_angle_refined_deg | 1.828 |
r_mcangle_it | 1.352 |
r_mcbond_it | 0.734 |
r_chiral_restr | 0.101 |
Non-Hydrogen Atoms Used in Refinement | |
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Non-Hydrogen Atoms | Number |
Protein Atoms | 2190 |
Nucleic Acid Atoms | |
Solvent Atoms | 122 |
Heterogen Atoms | 33 |
Software
Software | |
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Software Name | Purpose |
CrystalClear | data collection |
AMoRE | phasing |
REFMAC | refinement |
CrystalClear | data reduction |
CrystalClear | data scaling |