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Crystal structure of human argininosuccinate synthase in complex with aspartate and citrulline
Starting Model(s) Initial Refinement Model(s) Type Source Accession Code Details experimental model PDB 1VL2 PDB ENTRY 1VL2
Crystallization Crystalization Experiments ID Method pH Temperature Details 1 VAPOR DIFFUSION 7 293 16% PEG 3350, 0.15M DL-MALIC ACID, pH 7.0, VAPOR DIFFUSION, temperature 293K
Crystal Properties Matthews coefficient Solvent content 2.34 47.44
Crystal Data Unit Cell Length ( Å ) Angle ( ˚ ) a = 95.94 α = 90 b = 117.47 β = 90 c = 155.15 γ = 90
Symmetry Space Group F 2 2 2
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 MARRESEARCH mirrors 2006-08-21 M SINGLE WAVELENGTH
Radiation Source ID # Source Type Wavelength List Synchrotron Site Beamline 1 SYNCHROTRON BESSY BEAMLINE 14.1 0.95373 BESSY 14.1
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 2.4 30 99.7 0.152 0.205 7.3 17403 17358 28.8
Highest Resolution Shell ID # Resolution (High) Resolution (Low) Percent Possible (All) Percent Possible (Observed) R Merge I (Observed) R-Sym I (Observed) Mean I Over Sigma (Observed) Redundancy Number Unique Reflections (All) 1 2.4 2.5 100 0.268 0.455 3.98 7.5 1967
Refinement Statistics Diffraction ID Structure Solution Method Cross Validation method Starting model Resolution (High) Resolution (Low) Cut-off Sigma (I) Cut-off Sigma (F) Number Reflections (All) Number Reflections (Observed) Number Reflections (R-Free) Percent Reflections (Observed) R-Factor (All) 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 1VL2 2.4 19.41 2 2 16407 16407 864 100 0.19757 0.19757 0.1939 0.1922 0.26475 0.254 RANDOM 17.865
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] 1.05 0.3 -1.36
RMS Deviations Key Refinement Restraint Deviation r_dihedral_angle_2_deg 39.051 r_dihedral_angle_3_deg 19.682 r_dihedral_angle_4_deg 15.73 r_dihedral_angle_1_deg 14.546 r_scangle_it 2.667 r_angle_refined_deg 1.858 r_scbond_it 1.726 r_mcangle_it 1.108 r_mcbond_it 0.669 r_nbtor_refined 0.304
RMS Deviations Key Refinement Restraint Deviation r_dihedral_angle_2_deg 39.051 r_dihedral_angle_3_deg 19.682 r_dihedral_angle_4_deg 15.73 r_dihedral_angle_1_deg 14.546 r_scangle_it 2.667 r_angle_refined_deg 1.858 r_scbond_it 1.726 r_mcangle_it 1.108 r_mcbond_it 0.669 r_nbtor_refined 0.304 r_symmetry_vdw_refined 0.264 r_nbd_refined 0.229 r_symmetry_hbond_refined 0.223 r_xyhbond_nbd_refined 0.195 r_chiral_restr 0.162 r_bond_refined_d 0.014 r_gen_planes_refined 0.005 r_bond_other_d r_angle_other_deg r_gen_planes_other r_nbd_other r_nbtor_other r_xyhbond_nbd_other r_metal_ion_refined r_metal_ion_other r_symmetry_vdw_other 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 3191 Nucleic Acid Atoms Solvent Atoms 210 Heterogen Atoms 22
Software Software Software Name Purpose REFMAC refinement MAR345 data collection XDS data reduction XSCALE data scaling MOLREP phasing