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Crystal structure of human KRAS with extended switch I loop
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 (NH)4Cl 0.2 M
PEG3350 20-24%
Crystal Properties Matthews coefficient Solvent content 1.78 30.95
Crystal Data Unit Cell Length ( Å ) Angle ( ˚ ) a = 33.643 α = 90 b = 47.653 β = 90 c = 90.101 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 2020-11-11 M SINGLE WAVELENGTH
Radiation Source ID # Source Type Wavelength List Synchrotron Site Beamline 1 SYNCHROTRON ALS BEAMLINE 4.2.2 1.00003 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 1.48 47.65 99.7 0.069 0.075 0.028 0.999 18.5 6.7 24873 14.45
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 1.48 1.51 96 0.91 1.012 0.431 0.668 1.6 5.2
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-Free (Depositor) R-Free (DCC) Mean Isotropic B X-RAY DIFFRACTION MOLECULAR REPLACEMENT FREE R-VALUE 5US4 1.48 42.12 1.34 24791 1262 99.56 0.2 0.198 0.2366 0.2146 24.35
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_angle_d 0.8177 f_chiral_restr 0.0622 f_plane_restr 0.0046 f_bond_d 0.0042 f_dihedral_angle_d
Non-Hydrogen Atoms Used in Refinement Non-Hydrogen Atoms Number Protein Atoms 1433 Nucleic Acid Atoms Solvent Atoms 196 Heterogen Atoms 3
Software Software Software Name Purpose PHENIX refinement XDS data reduction Aimless data scaling PHASER phasing