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Structure of a G-alpha-i1 mutant with enhanced affinity for the RGS14 GoLoco motif.
Starting Model(s) Initial Refinement Model(s) Type Source Accession Code Details experimental model PDB 2OM2 2OM2 chain A
Crystallization Crystalization Experiments ID Method pH Temperature Details 1 VAPOR DIFFUSION, HANGING DROP 5 291 Hanging drops were a 1:1 mixture of protein-peptide complex in buffer (10 mM Tris pH 7.5, 1 mM magnesium chloride, 5% (w/v) glycerol, 5 mM DTT) and well solution (1.9 M ammonium sulfate, 100 mM sodium acetate pH 5.0, 200 mM magnesium chloride, 10% (w/v) glycerol), VAPOR DIFFUSION, HANGING DROP, temperature 291K
Crystal Properties Matthews coefficient Solvent content 3.37 63.53
Crystal Data Unit Cell Length ( Å ) Angle ( ˚ ) a = 70.392 α = 90 b = 83.679 β = 90 c = 190.148 γ = 90
Symmetry Space Group P 2 2 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 IMAGE PLATE MAR scanner 300 mm plate 2009-11-30 M SINGLE WAVELENGTH
Radiation Source ID # Source Type Wavelength List Synchrotron Site Beamline 1 SYNCHROTRON APS BEAMLINE 22-BM 1.000 APS 22-BM
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 2.38 28.88 98.8 0.065 27.3 6 45328 45328 -3 -3 59.4
Highest Resolution Shell ID # Resolution (High) Resolution (Low) Percent Possible (All) Percent Possible (Observed) R Merge I (Observed) Mean I Over Sigma (Observed) Redundancy Number Unique Reflections (All) 2.38 2.4 100 0.761 2.2 6
Refinement Statistics Diffraction ID Structure Solution Method Cross Validation method Starting model Resolution (High) Resolution (Low) Number Reflections (All) Number Reflections (Observed) Number Reflections (R-Free) Percent Reflections (Observed) R-Factor (Observed) R-Work (Depositor) R-Free (Depositor) R-Free (DCC) R-Free Selection Details Mean Isotropic B X-RAY DIFFRACTION MOLECULAR REPLACEMENT THROUGHOUT 2OM2 chain A 2.38 95.07 43755 43755 1528 98.55 0.22953 0.22825 0.26539 0.2625 RANDOM 62.254
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] -0.02 -0.33 0.35
RMS Deviations Key Refinement Restraint Deviation r_dihedral_angle_2_deg 34.925 r_dihedral_angle_3_deg 14.856 r_dihedral_angle_4_deg 13.807 r_dihedral_angle_1_deg 5.15 r_scangle_it 2.086 r_scbond_it 1.303 r_angle_refined_deg 1.086 r_mcangle_it 0.897 r_mcbond_it 0.463 r_chiral_restr 0.074
RMS Deviations Key Refinement Restraint Deviation r_dihedral_angle_2_deg 34.925 r_dihedral_angle_3_deg 14.856 r_dihedral_angle_4_deg 13.807 r_dihedral_angle_1_deg 5.15 r_scangle_it 2.086 r_scbond_it 1.303 r_angle_refined_deg 1.086 r_mcangle_it 0.897 r_mcbond_it 0.463 r_chiral_restr 0.074 r_bond_refined_d 0.009 r_gen_planes_refined 0.004 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 5643 Nucleic Acid Atoms Solvent Atoms 97 Heterogen Atoms 71
Software Software Software Name Purpose PHASER phasing REFMAC refinement HKL-2000 data reduction HKL-2000 data scaling