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Crystal structure of checkpoint kinase 1 (Chk1) in complex with inhibitors
Starting Model(s) Initial Refinement Model(s) Type Source Accession Code Details experimental model PDB 2HY0 PDB ENTRY 2HY0
Crystallization Crystalization Experiments ID Method pH Temperature Details 1 DL-MALIC ACID/PEG3350
Crystal Properties Matthews coefficient Solvent content 2.6 52.9
Crystal Data Unit Cell Length ( Å ) Angle ( ˚ ) a = 44.63 α = 90 b = 64.91 β = 100.76 c = 53.35 γ = 90
Symmetry Space Group P 1 21 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 RIGAKU CCD M SINGLE WAVELENGTH
Radiation Source ID # Source Type Wavelength List Synchrotron Site Beamline 1 ROTATING ANODE RIGAKU MICROMAX-007 HF
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 2.01 36.33 95.1 0.06 8.5 2.4 19031 1.5 32.55
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 2.01 2.12 97.4 0.24 2.8 2.2
Refinement Statistics Diffraction ID Structure Solution 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 (Depositor) R-Work (DCC) R-Free (Depositor) R-Free (DCC) Mean Isotropic B X-RAY DIFFRACTION MOLECULAR REPLACEMENT PDB ENTRY 2HY0 2.009 36.333 1.36 19003 895 94.72 0.215 0.2137 0.2075 0.2409 0.2303 42.21
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] -11.0344 1.4482 3.5273 7.507
RMS Deviations Key Refinement Restraint Deviation f_dihedral_angle_d 17.435 f_angle_d 0.973 f_chiral_restr 0.067 f_bond_d 0.006 f_plane_restr 0.006
Non-Hydrogen Atoms Used in Refinement Non-Hydrogen Atoms Number Protein Atoms 2031 Nucleic Acid Atoms Solvent Atoms 122 Heterogen Atoms 17
Software Software Software Name Purpose PHENIX refinement MOSFLM data reduction SCALA data scaling PHASER phasing