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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 3.4 63.55
Crystal Data Unit Cell Length ( Å ) Angle ( ˚ ) a = 91.13 α = 90 b = 91.13 β = 90 c = 92.91 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 CCD ADSC CCD 2009-05-21 M SINGLE WAVELENGTH
Radiation Source ID # Source Type Wavelength List Synchrotron Site Beamline 1 SYNCHROTRON DIAMOND BEAMLINE I02 Diamond I02
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 2.5 60.15 99.3 0.06 13.9 5.4 15700 1.5 75.31
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 2.5 2.64 99.7 0.5 2 5.5
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 2.5 22.86 15677 780 99.1 0.192 0.1905 0.1915 0.2237 0.2292 RANDOM 69.85
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] 1.8491 1.8491 -3.6983
RMS Deviations Key Refinement Restraint Deviation t_other_torsion 20 t_omega_torsion 2.38 t_angle_deg 1.1 t_bond_d 0.009 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 20 t_omega_torsion 2.38 t_angle_deg 1.1 t_bond_d 0.009 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 2193 Nucleic Acid Atoms Solvent Atoms 93 Heterogen Atoms 52
Software Software Software Name Purpose BUSTER refinement MOSFLM data reduction SCALA data scaling PHASER phasing