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Fragment-based screening identifies a new area for inhibitor binding to checkpoint kinase 2 (CHK2)
Starting Model(s) Initial Refinement Model(s) Type Source Accession Code Details experimental model PDB 2WTJ PDB ENTRY 2WTJ
Crystallization Crystalization Experiments ID Method pH Temperature Details 1 0.1 M HEPES 7.5, 0.2 M MG(NO3)2, 10% (V/V) ETHYLENE GLYCOL, 1 MM TCEP AND 8-14% (W/V) PEG 3350
Crystal Properties Matthews coefficient Solvent content 2.94 58.2
Crystal Data Unit Cell Length ( Å ) Angle ( ˚ ) a = 90.23 α = 90 b = 90.23 β = 90 c = 92.9 γ = 120
Symmetry Space Group P 32 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 100 PIXEL DECTRIS PILATUS 2012-07-29 M SINGLE WAVELENGTH
Radiation Source ID # Source Type Wavelength List Synchrotron Site Beamline 1 SYNCHROTRON DIAMOND BEAMLINE I24 Diamond I24
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 2.31 39.07 99.9 0.04 24.4 9.2 19611 1.5 73.13
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 2.31 2.37 100 0.58 3.9 9.7
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 PDB ENTRY 2WTJ 2.32 39.07 19304 989 99.73 0.1896 0.188 0.1904 0.2205 0.226 RANDOM 75.78
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] 2.4699 2.4699 -4.9398
RMS Deviations Key Refinement Restraint Deviation t_other_torsion 16.48 t_omega_torsion 2.57 t_angle_deg 1.09 t_bond_d 0.01 t_dihedral_angle_d t_incorr_chiral_ct t_pseud_angle t_trig_c_planes t_gen_planes t_it
RMS Deviations Key Refinement Restraint Deviation t_other_torsion 16.48 t_omega_torsion 2.57 t_angle_deg 1.09 t_bond_d 0.01 t_dihedral_angle_d t_incorr_chiral_ct t_pseud_angle t_trig_c_planes t_gen_planes t_it t_nbd t_improper_torsion t_chiral_improper_torsion t_sum_occupancies t_utility_distance t_utility_angle t_utility_torsion t_ideal_dist_contact
Non-Hydrogen Atoms Used in Refinement Non-Hydrogen Atoms Number Protein Atoms 2225 Nucleic Acid Atoms Solvent Atoms 53 Heterogen Atoms 52
Software Software Software Name Purpose BUSTER refinement XDS data reduction Aimless data scaling PHASER phasing