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Crystal structure of human KRAS at 1.12 A
Starting Model(s) Initial Refinement Model(s) Type Source Accession Code Details experimental model PDB 5US4
Crystallization Crystalization Experiments ID Method pH Temperature Details 1 VAPOR DIFFUSION, SITTING DROP 293 Ammonium Formate 0.2 M and PEG 3350 20%
Crystal Properties Matthews coefficient Solvent content 1.84 33.12
Crystal Data Unit Cell Length ( Å ) Angle ( ˚ ) a = 38.93 α = 90 b = 39.81 β = 90 c = 91.67 γ = 90
Symmetry Space Group P 21 21 21
Diffraction Diffraction Experiment ID # Crystal ID Scattering Type Data Collection Temperature Detector Detector Type Details Collection Date Monochromator Protocol 1 1 x-ray 100 CMOS RDI CMOS_8M 2021-05-05 M SINGLE WAVELENGTH
Radiation Source ID # Source Type Wavelength List Synchrotron Site Beamline 1 SYNCHROTRON ALS BEAMLINE 4.2.2 1.07216 ALS 4.2.2
Data Collection Overall ID # Resolution (High) Resolution (Low) Percent Possible (Observed) R Sym I (Observed) Rrim I (All) Rpim I (All) CC (Half) 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 1.12 36.52 99.2 0.087 0.092 0.029 0.998 24.3 7.1 55227 7.84
Highest Resolution Shell ID # Resolution (High) Resolution (Low) Percent Possible (All) Percent Possible (Observed) R-Sym I (Observed) Rrim I (All) Rpim I (All) CC (Half) Mean I Over Sigma (Observed) Redundancy Number Unique Reflections (All) 1 1.12 1.14 90.3 0.574 0.662 0.318 0.735 3.1
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) Mean Isotropic B X-RAY DIFFRACTION MOLECULAR REPLACEMENT FREE R-VALUE 5us4 1.12 36.52 1.34 55205 2685 99.18 0.1209 0.1195 0.1197 0.1473 0.1466 12.39
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 11.7298 f_angle_d 1.2371 f_chiral_restr 0.0871 f_plane_restr 0.012 f_bond_d 0.0108
Non-Hydrogen Atoms Used in Refinement Non-Hydrogen Atoms Number Protein Atoms 1383 Nucleic Acid Atoms Solvent Atoms 278 Heterogen Atoms 1
Software Software Software Name Purpose PHENIX refinement XDS data reduction Aimless data scaling PHASER phasing