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Identification of the Clinical Development Candidate MRTX849, a Covalent KRASG12C Inhibitor for the Treatment of Cancer
Starting Model(s) Initial Refinement Model(s) Type Source Accession Code Details experimental model PDB 4L8G 4l8g.pdb
Crystallization Crystalization Experiments ID Method pH Temperature Details 1 VAPOR DIFFUSION, HANGING DROP 293 32% PEG 4K
0.1M NaOAc (unbuffered)
8% 2-Propanol
Crystal Properties Matthews coefficient Solvent content 2.12 41.92
Crystal Data Unit Cell Length ( Å ) Angle ( ˚ ) a = 74.918 α = 90 b = 61.8 β = 111.37 c = 76.05 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 PIXEL DECTRIS PILATUS 2M Osmic confocal mirrors 2017-11-29 M SINGLE WAVELENGTH
Radiation Source ID # Source Type Wavelength List Synchrotron Site Beamline 1 ROTATING ANODE RIGAKU FR-E 1.5418
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 1.94 30 96.3 0.076 15.8 6.45 47734
Highest Resolution Shell ID # Resolution (High) Resolution (Low) Percent Possible (All) Percent Possible (Observed) R Merge I (Observed) Rrim I (All) Rpim I (All) Mean I Over Sigma (Observed) Redundancy Number Unique Reflections (All) 1 1.94 1.99 92.8 0.21 0.235 0.102 5.7 5.4
Refinement Statistics Diffraction ID Structure Solution Method Cross Validation method Starting model Resolution (High) Resolution (Low) Number Reflections (Observed) Number Reflections (R-Free) Percent Reflections (Observed) R-Factor (All) R-Work (Depositor) R-Free (Depositor) R-Free (DCC) Mean Isotropic B X-RAY DIFFRACTION MOLECULAR REPLACEMENT THROUGHOUT 4l8g.pdb 1.94 28.321 46376 2375 96.318 0.177 0.1746 0.222 0.2121 20.445
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] -0.921 0.595 -0.122 0.441
RMS Deviations Key Refinement Restraint Deviation r_dihedral_angle_2_deg 33.299 r_dihedral_angle_4_deg 21.5 r_dihedral_angle_3_deg 14.629 r_dihedral_angle_other_3_deg 11.309 r_dihedral_angle_1_deg 6.558 r_lrange_it 5.186 r_lrange_other 5.12 r_scangle_other 3.595 r_scangle_it 3.541 r_mcangle_it 2.453
RMS Deviations Key Refinement Restraint Deviation r_dihedral_angle_2_deg 33.299 r_dihedral_angle_4_deg 21.5 r_dihedral_angle_3_deg 14.629 r_dihedral_angle_other_3_deg 11.309 r_dihedral_angle_1_deg 6.558 r_lrange_it 5.186 r_lrange_other 5.12 r_scangle_other 3.595 r_scangle_it 3.541 r_mcangle_it 2.453 r_mcangle_other 2.453 r_scbond_other 2.279 r_scbond_it 2.26 r_angle_refined_deg 1.787 r_mcbond_it 1.641 r_mcbond_other 1.639 r_angle_other_deg 1.36 r_nbd_other 0.227 r_nbd_refined 0.215 r_symmetry_nbd_refined 0.202 r_symmetry_xyhbond_nbd_refined 0.188 r_symmetry_nbd_other 0.18 r_nbtor_refined 0.174 r_xyhbond_nbd_refined 0.164 r_symmetry_nbtor_other 0.077 r_chiral_restr 0.072 r_metal_ion_refined 0.018 r_bond_refined_d 0.01 r_gen_planes_refined 0.008 r_xyhbond_nbd_other 0.003 r_bond_other_d 0.001 r_gen_planes_other 0.001 r_symmetry_xyhbond_nbd_other 0.001
Non-Hydrogen Atoms Used in Refinement Non-Hydrogen Atoms Number Protein Atoms 5413 Nucleic Acid Atoms Solvent Atoms 446 Heterogen Atoms 288
Software Software Software Name Purpose REFMAC refinement iMOSFLM data reduction SCALA data scaling PHENIX phasing