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Crystal Structure of Human Rac1 Fused with the Scaffold Protein POSH (residues 319-371)
Starting Model(s) Initial Refinement Model(s) Type Source Accession Code Details experimental model PDB 9RFB
Crystallization Crystalization Experiments ID Method pH Temperature Details 1 VAPOR DIFFUSION, HANGING DROP 6.5 277 0.12 M ethylene glycol, 0.1 M imidazole-MES pH 6.5, 37% (v/v) 2-methyl-2,4-pentanediol (MPD)-PEG 1000-PEG 3500
2 mg/mL Rac1-POSH
Crystal Properties Matthews coefficient Solvent content 2.05 40.11
Crystal Data Unit Cell Length ( Å ) Angle ( ˚ ) a = 39.222 α = 90 b = 73.082 β = 90 c = 73.283 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 PIXEL DECTRIS PILATUS 6M OH1 OH2 2022-11-13 M SINGLE WAVELENGTH
Radiation Source ID # Source Type Wavelength List Synchrotron Site Beamline 1 SYNCHROTRON ESRF BEAMLINE MASSIF-1 0.9655 ESRF MASSIF-1
Data Collection Overall ID # Resolution (High) Resolution (Low) Percent Possible (Observed) R Merge 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 1.248 51.75 95 0.088 0.092 0.026 0.999 14.9 12.9 50198
Highest Resolution Shell ID # Resolution (High) Resolution (Low) Percent Possible (All) Percent Possible (Observed) R Merge I (Observed) Rpim I (All) CC (Half) Mean I Over Sigma (Observed) Redundancy Number Unique Reflections (All) 1 1.248 1.337 56 1.5 0.5 0.576 1.4 11.8
Refinement Statistics Diffraction ID Structure Solution Method Cross Validation method Resolution (High) Resolution (Low) Number Reflections (Observed) Number Reflections (R-Free) Percent Reflections (Observed) R-Factor (All) R-Work (Depositor) R-Work (DCC) R-Free (Depositor) R-Free (DCC) Mean Isotropic B X-RAY DIFFRACTION MOLECULAR REPLACEMENT THROUGHOUT 1.248 51.748 50198 2623 84.638 0.135 0.1338 0.1336 0.164 0.1638 17.053
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] -0.208 0.297 -0.089
RMS Deviations Key Refinement Restraint Deviation r_lrange_it 15.156 r_dihedral_angle_6_deg 15.121 r_lrange_other 14.094 r_dihedral_angle_3_deg 11.862 r_dihedral_angle_2_deg 9.601 r_scangle_it 9.437 r_scangle_other 9.434 r_mcangle_other 8.094 r_mcangle_it 8.092 r_scbond_it 6.619
RMS Deviations Key Refinement Restraint Deviation r_lrange_it 15.156 r_dihedral_angle_6_deg 15.121 r_lrange_other 14.094 r_dihedral_angle_3_deg 11.862 r_dihedral_angle_2_deg 9.601 r_scangle_it 9.437 r_scangle_other 9.434 r_mcangle_other 8.094 r_mcangle_it 8.092 r_scbond_it 6.619 r_scbond_other 6.616 r_dihedral_angle_1_deg 6.307 r_mcbond_it 5.514 r_mcbond_other 5.481 r_rigid_bond_restr 3.811 r_angle_refined_deg 1.783 r_angle_other_deg 0.619 r_nbd_other 0.238 r_nbd_refined 0.224 r_symmetry_nbd_refined 0.214 r_symmetry_nbd_other 0.196 r_nbtor_refined 0.18 r_chiral_restr_other 0.173 r_xyhbond_nbd_refined 0.17 r_chiral_restr 0.099 r_symmetry_xyhbond_nbd_refined 0.097 r_symmetry_nbtor_other 0.086 r_dihedral_angle_other_2_deg 0.065 r_bond_refined_d 0.012 r_gen_planes_refined 0.009 r_bond_other_d 0.002 r_gen_planes_other 0.001
Non-Hydrogen Atoms Used in Refinement Non-Hydrogen Atoms Number Protein Atoms 1697 Nucleic Acid Atoms Solvent Atoms 193 Heterogen Atoms 41
Software Software Software Name Purpose REFMAC refinement autoPROC data reduction autoPROC data scaling PHASER phasing