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Structure of the Keap1 Kelch domain in complex with a small molecule inhibitor.
Starting Model(s) Initial Refinement Model(s) Type Source Accession Code Details experimental model PDB 1X2J
Crystallization Crystalization Experiments ID Method pH Temperature Details 1 7 0.3-0.6 (NH4)2SO4, 0.4-1.4 M LI2SO4 AND 0.1 M NA3CITRATE-HCL PH 5.6
Crystal Properties Matthews coefficient Solvent content 2.59 52.58
Crystal Data Unit Cell Length ( Å ) Angle ( ˚ ) a = 103.621 α = 90 b = 103.621 β = 90 c = 55.838 γ = 120
Diffraction Diffraction Experiment ID # Crystal ID Scattering Type Data Collection Temperature Detector Detector Type Details Collection Date Monochromator Protocol 1 1 x-ray 93 CCD RIGAKU CCD 2013-11-14 M SINGLE WAVELENGTH
Radiation Source ID # Source Type Wavelength List Synchrotron Site Beamline 1 ROTATING ANODE RIGAKU FR-E+
Data Collection Overall 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 1.79 47.41 86.2 0.04 14.7 2.1 27394
Highest Resolution Shell 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 1.79 1.84 39.3 0.18 3.4
Refinement Statistics 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 (Depositor) R-Work (DCC) R-Free (Depositor) R-Free (DCC) R-Free Selection Details Mean Isotropic B X-RAY DIFFRACTION MOLECULAR REPLACEMENT THROUGHOUT 1X2J 1.79 47.41 26003 1391 86.2 0.17756 0.17572 0.1791 0.21193 0.2139 RANDOM 26.918
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] -0.54 -0.27 -0.54 1.74
RMS Deviations Key Refinement Restraint Deviation r_dihedral_angle_2_deg 33.647 r_dihedral_angle_4_deg 18.818 r_dihedral_angle_3_deg 13.2 r_dihedral_angle_1_deg 7.351 r_scbond_it 2.067 r_angle_refined_deg 1.493 r_mcbond_it 1.032 r_angle_other_deg 0.2 r_chiral_restr 0.099 r_bond_refined_d 0.011
RMS Deviations Key Refinement Restraint Deviation r_dihedral_angle_2_deg 33.647 r_dihedral_angle_4_deg 18.818 r_dihedral_angle_3_deg 13.2 r_dihedral_angle_1_deg 7.351 r_scbond_it 2.067 r_angle_refined_deg 1.493 r_mcbond_it 1.032 r_angle_other_deg 0.2 r_chiral_restr 0.099 r_bond_refined_d 0.011 r_bond_other_d 0.002 r_gen_planes_refined r_gen_planes_other r_nbd_refined r_nbd_other r_nbtor_refined r_nbtor_other r_xyhbond_nbd_refined r_xyhbond_nbd_other r_metal_ion_refined r_metal_ion_other r_symmetry_vdw_refined r_symmetry_vdw_other r_symmetry_hbond_refined r_symmetry_hbond_other r_symmetry_metal_ion_refined r_symmetry_metal_ion_other r_mcbond_other r_mcangle_it r_mcangle_other r_scbond_other r_scangle_it r_scangle_other r_long_range_B_refined r_long_range_B_other r_rigid_bond_restr r_sphericity_free r_sphericity_bonded
Non-Hydrogen Atoms Used in Refinement Non-Hydrogen Atoms Number Protein Atoms 2215 Nucleic Acid Atoms Solvent Atoms 300 Heterogen Atoms 30
Software Software Software Name Purpose REFMAC refinement XDS data reduction Aimless data scaling