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Discovery of Small Molecules that Bind to K-Ras and Inhibit Sos-Mediated Activation.
Crystallization Crystalization Experiments ID Method pH Temperature Details 1 7.5 291 30% PEG4000, 0.1 M sodium phosphate, 0.2 M Li2SO4, pH 7.5, VAPOR DIFFUSION, HANGING DROP, temperature 291K
Crystal Properties Matthews coefficient Solvent content 2.71 54.54
Crystal Data Unit Cell Length ( Å ) Angle ( ˚ ) a = 94.357 α = 90 b = 94.357 β = 90 c = 122.356 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 100 CCD Bruker Platinum 135 2010-09-15 M SINGLE WAVELENGTH
Radiation Source ID # Source Type Wavelength List Synchrotron Site Beamline 1 ROTATING ANODE BRUKER AXS MICROSTAR
Data Collection Overall ID # Resolution (High) Resolution (Low) Percent Possible (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 50 99.9 14406 -3
Highest Resolution Shell ID # Resolution (High) Resolution (Low) Percent Possible (All) Percent Possible (Observed) Mean I Over Sigma (Observed) Redundancy Number Unique Reflections (All) 1 2 2.03 99
Refinement Statistics Diffraction ID Structure Solution Method Cross Validation method Resolution (High) Resolution (Low) Number Reflections (All) 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 2 50 14424 13572 720 99.4 0.203 0.2 0.2039 0.253 0.2553 RANDOM 26.67
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] -0.84 -0.42 -0.84 1.27
RMS Deviations Key Refinement Restraint Deviation r_dihedral_angle_2_deg 39.378 r_dihedral_angle_4_deg 19.885 r_dihedral_angle_3_deg 14.29 r_dihedral_angle_1_deg 6.541 r_scangle_it 5.663 r_scbond_it 3.546 r_mcangle_it 2.341 r_angle_refined_deg 2.048 r_mcbond_it 1.383 r_chiral_restr 0.149
RMS Deviations Key Refinement Restraint Deviation r_dihedral_angle_2_deg 39.378 r_dihedral_angle_4_deg 19.885 r_dihedral_angle_3_deg 14.29 r_dihedral_angle_1_deg 6.541 r_scangle_it 5.663 r_scbond_it 3.546 r_mcangle_it 2.341 r_angle_refined_deg 2.048 r_mcbond_it 1.383 r_chiral_restr 0.149 r_bond_refined_d 0.027 r_gen_planes_refined 0.011 r_bond_other_d r_angle_other_deg 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_rigid_bond_restr r_sphericity_free r_sphericity_bonded
Non-Hydrogen Atoms Used in Refinement Non-Hydrogen Atoms Number Protein Atoms 1327 Nucleic Acid Atoms Solvent Atoms 132 Heterogen Atoms 29
Software Software Software Name Purpose PROTEUM PLUS data collection MOLREP phasing REFMAC refinement HKL-2000 data reduction HKL-2000 data scaling