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Crystal structure of Argininosuccinate synthase (TM1780) from Thermotoga maritima at 1.65 A resolution
Starting Model(s) Initial Refinement Model(s) Type Source Accession Code Details experimental model PDB 1KH1
Crystallization Crystalization Experiments ID Method pH Temperature Details 1 VAPOR DIFFUSION,SITTING DROP,NANODROP 293 16% PEG 3350, 0.20M Mg Acetate, 0.10M Imidazole , VAPOR DIFFUSION,SITTING DROP,NANODROP, temperature 293K
Crystal Properties Matthews coefficient Solvent content 2.16 42.67
Crystal Data Unit Cell Length ( Å ) Angle ( ˚ ) a = 95.322 α = 90 b = 114.906 β = 90 c = 149.606 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 CCD ADSC 2003-09-20 M SINGLE WAVELENGTH
Radiation Source ID # Source Type Wavelength List Synchrotron Site Beamline 1 SYNCHROTRON ALS BEAMLINE 8.2.1 ALS 8.2.1
Data Collection Overall ID # Resolution (High) Resolution (Low) Percent Possible (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 1.65 50 99.95 0.073 22.21 4.91 195858 25.36
Highest Resolution Shell ID # Resolution (High) Resolution (Low) Percent Possible (All) Percent Possible (Observed) R-Sym I (Observed) Mean I Over Sigma (Observed) Redundancy Number Unique Reflections (All) 1 1.65 1.71 99.87 0.665 2.17 4.6 19384
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 (Observed) R-Work (Depositor) R-Free (Depositor) R-Free (DCC) R-Free Selection Details Mean Isotropic B X-RAY DIFFRACTION MOLECULAR REPLACEMENT THROUGHOUT 1KH1 1.65 49.21 185987 9757 99.75 0.17902 0.17742 0.2094 0.2085 RANDOM 16.635
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] 0.25 0.43 -0.68
RMS Deviations Key Refinement Restraint Deviation r_dihedral_angle_2_deg 37.489 r_dihedral_angle_4_deg 19.743 r_dihedral_angle_3_deg 13.062 r_scangle_it 7.419 r_dihedral_angle_1_deg 5.955 r_scbond_it 5.175 r_mcangle_it 3.295 r_mcbond_it 2.39 r_angle_refined_deg 1.627 r_angle_other_deg 1.345
RMS Deviations Key Refinement Restraint Deviation r_dihedral_angle_2_deg 37.489 r_dihedral_angle_4_deg 19.743 r_dihedral_angle_3_deg 13.062 r_scangle_it 7.419 r_dihedral_angle_1_deg 5.955 r_scbond_it 5.175 r_mcangle_it 3.295 r_mcbond_it 2.39 r_angle_refined_deg 1.627 r_angle_other_deg 1.345 r_mcbond_other 0.603 r_nbd_refined 0.224 r_symmetry_vdw_other 0.202 r_nbd_other 0.183 r_xyhbond_nbd_refined 0.155 r_symmetry_vdw_refined 0.123 r_symmetry_hbond_refined 0.115 r_chiral_restr 0.108 r_nbtor_other 0.089 r_bond_refined_d 0.018 r_gen_planes_refined 0.007 r_bond_other_d 0.001 r_gen_planes_other 0.001
Non-Hydrogen Atoms Used in Refinement Non-Hydrogen Atoms Number Protein Atoms 12327 Nucleic Acid Atoms Solvent Atoms 1184 Heterogen Atoms
Software Software Software Name Purpose REFMAC refinement SCALEPACK data scaling CNS refinement DENZO data reduction CNS phasing