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MEK1 Kinase bound to small molecule inhibitor G659
Starting Model(s) Initial Refinement Model(s) Type Source Accession Code Details experimental model PDB 1S9J
Crystallization Crystalization Experiments ID Method pH Temperature Details 1 VAPOR DIFFUSION, HANGING DROP 6.9 291 The protein was concentrated to 15mg/ml and incubated with 10 fold molar excess inhibitor plus 1mM MgAMP-PNP before crystallization. MEK1 crystals grew from hanging drop vapor diffusion using 12% w/v PEG 8000, 0.4M NH4H2PO4 and 0.1M HEPES pH 6.9 at 18 degC.
Crystal Properties Matthews coefficient Solvent content 3.32 62.95
Crystal Data Unit Cell Length ( Å ) Angle ( ˚ ) a = 82.083 α = 90 b = 82.083 β = 90 c = 129.48 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 ADSC QUANTUM 315r 2007-12-05 M SINGLE WAVELENGTH
Radiation Source ID # Source Type Wavelength List Synchrotron Site Beamline 1 SYNCHROTRON ALS BEAMLINE 5.0.1 0.987 ALS 5.0.1
Data Collection Overall ID # Resolution (High) Resolution (Low) Percent Possible (Observed) R Sym 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 2.7 20 99.9 0.078 36.2 5.7 13584 13584 2 56.95
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 2.7 2.79 100 0.75 2.7 5.7
Refinement Statistics 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 (Depositor) R-Work (DCC) R-Free (Depositor) R-Free (DCC) R-Free Selection Details Mean Isotropic B X-RAY DIFFRACTION MOLECULAR REPLACEMENT FREE R-VALUE 1S9J 2.701 19.716 1.35 13579 659 99.95 0.1694 0.167 0.1702 0.2183 0.2196 Random selection
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]
RMS Deviations Key Refinement Restraint Deviation f_dihedral_angle_d 14.47 f_angle_d 1.172 f_chiral_restr 0.074 f_bond_d 0.008 f_plane_restr 0.005
Non-Hydrogen Atoms Used in Refinement Non-Hydrogen Atoms Number Protein Atoms 2261 Nucleic Acid Atoms Solvent Atoms 35 Heterogen Atoms 59
Software Software Software Name Purpose PHENIX refinement