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1.8 A Resolution Crystal Structure of O-Acetylserine Sulfhydrylase (OASS) Holoenzyme From MYCOBACTERIUM TUBERCULOSIS
Starting Model(s) Initial Refinement Model(s) Type Source Accession Code Details experimental model PDB 1Z7W PDB ENTRY 1Z7W
Crystallization Crystalization Experiments ID Method pH Temperature Details 1 VAPOR DIFFUSION, HANGING DROP 7.4 293 0.1 M HEPES, 80% MPD, pH 7.4, VAPOR DIFFUSION, HANGING DROP, temperature 293K
Crystal Properties Matthews coefficient Solvent content 3.53 65.2
Crystal Data Unit Cell Length ( Å ) Angle ( ˚ ) a = 70.991 α = 90 b = 70.991 β = 90 c = 179.624 γ = 90
Symmetry Space Group P 41 21 2
Diffraction Diffraction Experiment ID # Crystal ID Scattering Type Data Collection Temperature Detector Detector Type Details Collection Date Monochromator Protocol 1 1 x-ray 110 CCD ADSC QUANTUM 4 2006-09-10 M SINGLE WAVELENGTH
Radiation Source ID # Source Type Wavelength List Synchrotron Site Beamline 1 SYNCHROTRON ESRF BEAMLINE ID14-3 0.934 ESRF ID14-3
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 1.8 38.46 100 0.094 16.4 7.1 43621 43621 21.2
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) 1 1.8 1.9 100 0.542 3.1 7.3 6244
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 (All) 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 PDB ENTRY 1Z7W 1.8 37.96 41331 41331 2201 99.98 0.17508 0.17508 0.17415 0.19247 0.1993 RANDOM 21.76
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] 0.78 0.78 -1.56
RMS Deviations Key Refinement Restraint Deviation r_dihedral_angle_2_deg 33.529 r_dihedral_angle_4_deg 16.242 r_dihedral_angle_3_deg 12.518 r_dihedral_angle_1_deg 5.032 r_scangle_it 2.891 r_scbond_it 1.933 r_angle_refined_deg 1.28 r_mcangle_it 1.023 r_mcbond_it 0.941 r_angle_other_deg 0.824
RMS Deviations Key Refinement Restraint Deviation r_dihedral_angle_2_deg 33.529 r_dihedral_angle_4_deg 16.242 r_dihedral_angle_3_deg 12.518 r_dihedral_angle_1_deg 5.032 r_scangle_it 2.891 r_scbond_it 1.933 r_angle_refined_deg 1.28 r_mcangle_it 1.023 r_mcbond_it 0.941 r_angle_other_deg 0.824 r_xyhbond_nbd_refined 0.328 r_symmetry_vdw_other 0.3 r_symmetry_vdw_refined 0.266 r_nbd_refined 0.21 r_nbd_other 0.181 r_nbtor_refined 0.164 r_mcbond_other 0.155 r_symmetry_hbond_refined 0.143 r_nbtor_other 0.08 r_chiral_restr 0.072 r_bond_refined_d 0.01 r_gen_planes_refined 0.004 r_bond_other_d 0.001 r_gen_planes_other 0.001
Non-Hydrogen Atoms Used in Refinement Non-Hydrogen Atoms Number Protein Atoms 2242 Nucleic Acid Atoms Solvent Atoms 203 Heterogen Atoms 33
Software Software Software Name Purpose REFMAC refinement ADSC data collection MOSFLM data reduction SCALA data scaling MOLREP phasing