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X-Ray Structure of SAICAR Synthetase (PurC) from Streptococcus pneumoniae complexed with ADP and Mg2+
Starting Model(s) Initial Refinement Model(s) Type Source Accession Code Details experimental model PDB 2GQR PDB ENTRY 2GQR
Crystallization Crystalization Experiments ID Method pH Temperature Details 1 VAPOR DIFFUSION, HANGING DROP 8 289 36% PEG 200, 0.16 M Sodium acetate, pH 8.0, VAPOR DIFFUSION, HANGING DROP, temperature 289K
Crystal Properties Matthews coefficient Solvent content 2.2 43.99
Crystal Data Unit Cell Length ( Å ) Angle ( ˚ ) a = 45.931 α = 90 b = 65.111 β = 91.96 c = 85.837 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 CCD ADSC QUANTUM 210 2011-10-13 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) R Sym 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 2.597 85.787 84.8 0.092 0.092 11.92 2.7 12323 11902 1 1
Highest Resolution Shell ID # Resolution (High) Resolution (Low) Percent Possible (All) Percent Possible (Observed) Mean I Over Sigma (Observed) Redundancy Number Unique Reflections (All) 1 2.597 2.664 58.66
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-Work (DCC) R-Free (Depositor) R-Free (DCC) R-Free Selection Details Mean Isotropic B X-RAY DIFFRACTION MOLECULAR REPLACEMENT THROUGHOUT PDB ENTRY 2GQR 2.597 85.75 12323 12323 646 82.09 0.23498 0.2306 0.2283 0.31866 0.3147 RANDOM 43.9
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] 5.24 4.68 -3.99 -0.93
RMS Deviations Key Refinement Restraint Deviation r_dihedral_angle_2_deg 41.876 r_dihedral_angle_3_deg 23.302 r_dihedral_angle_4_deg 17.555 r_dihedral_angle_1_deg 7.665 r_angle_refined_deg 1.637 r_chiral_restr 0.11 r_bond_refined_d 0.011 r_gen_planes_refined 0.006 r_bond_other_d r_angle_other_deg
RMS Deviations Key Refinement Restraint Deviation r_dihedral_angle_2_deg 41.876 r_dihedral_angle_3_deg 23.302 r_dihedral_angle_4_deg 17.555 r_dihedral_angle_1_deg 7.665 r_angle_refined_deg 1.637 r_chiral_restr 0.11 r_bond_refined_d 0.011 r_gen_planes_refined 0.006 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_it r_mcbond_other r_mcangle_it r_scbond_it r_scangle_it r_rigid_bond_restr r_sphericity_free r_sphericity_bonded
Non-Hydrogen Atoms Used in Refinement Non-Hydrogen Atoms Number Protein Atoms 3799 Nucleic Acid Atoms Solvent Atoms 161 Heterogen Atoms 65
Software Software Software Name Purpose ADSC data collection MOLREP phasing REFMAC refinement HKL-2000 data reduction HKL-2000 data scaling