7K2E
Kelch domain of human KEAP1 bound to Nrf2-based cyclic peptide, c[GDEETGE]
X-RAY DIFFRACTION
Crystallization
Crystalization Experiments | ||||
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ID | Method | pH | Temperature | Details |
1 | VAPOR DIFFUSION, HANGING DROP | 295 | 1.2 - 1.5 M Ammonium Sulfate, 0.5-0.7% PEG-MME-550, 0.1 M Bis-Tris pH = 6.0 - 6.5 |
Crystal Properties | |
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Matthews coefficient | Solvent content |
3.02 | 59.3 |
Crystal Data
Unit Cell | |
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Length ( Å ) | Angle ( ˚ ) |
a = 162.149 | α = 90 |
b = 68.872 | β = 117.476 |
c = 77.371 | 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 | PIXEL | DECTRIS EIGER X 9M | 2018-10-24 | M | SINGLE WAVELENGTH |
Radiation Source | |||||
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ID # | Source | Type | Wavelength List | Synchrotron Site | Beamline |
1 | SYNCHROTRON | NSLS-II BEAMLINE 17-ID-1 | 0.9201 | NSLS-II | 17-ID-1 |
Data Collection
Overall | |||||||||||||||||||
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ID # | Resolution (High) | Resolution (Low) | Percent Possible (Observed) | R Merge I (Observed) | Rrim I (All) | Rpim I (All) | CC (Half) | 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 | 2.03 | 29.31 | 98.91 | 0.04294 | 0.06073 | 0.04294 | 0.998 | 11.22 | 2 | 48405 | 36.38 |
Highest Resolution Shell | |||||||||||||||||||
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ID # | Resolution (High) | Resolution (Low) | Percent Possible (All) | Percent Possible (Observed) | R Merge I (Observed) | Rrim I (All) | Rpim I (All) | CC (Half) | Mean I Over Sigma (Observed) | Redundancy | Number Unique Reflections (All) | ||||||||
1 | 2.031 | 2.104 | 95.42 | 0.4453 | 0.6297 | 0.4453 | 0.726 | 1.88 | 1.9 |
Refinement
Statistics | |||||||||||||||||||
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Diffraction ID | Structure Solution Method | Cross Validation method | Starting model | Resolution (High) | Resolution (Low) | Cut-off Sigma (F) | Number Reflections (Observed) | Number Reflections (R-Free) | Percent Reflections (Observed) | R-Factor (Observed) | R-Work | R-Free | Mean Isotropic B | ||||||
X-RAY DIFFRACTION | MOLECULAR REPLACEMENT | FREE R-VALUE | 5WFL | 2.03 | 29.31 | 1.36 | 48388 | 1992 | 98.95 | 0.2161 | 0.2146 | 0.2502 | 58.86 |
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] | |
RMS Deviations | |
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Key | Refinement Restraint Deviation |
f_dihedral_angle_d | 15.9718 |
f_angle_d | 0.9116 |
f_chiral_restr | 0.0621 |
f_bond_d | 0.0074 |
f_plane_restr | 0.0069 |
Non-Hydrogen Atoms Used in Refinement | |
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Non-Hydrogen Atoms | Number |
Protein Atoms | 4364 |
Nucleic Acid Atoms | |
Solvent Atoms | 123 |
Heterogen Atoms |
Software
Software | |
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Software Name | Purpose |
PHENIX | refinement |
HKL-2000 | data reduction |
HKL-2000 | data scaling |
PHENIX | phasing |