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Crystal structure of O-acetylserine sulfhydrylase from Haemophilus influenzae in complex with high affinity inhibitory peptide from serine acetyl transferase of Salmonella typhimurium at 2.0 A
Starting Model(s) Initial Refinement Model(s) Type Source Accession Code Details experimental model PDB 4HO1
Crystallization Crystalization Experiments ID Method pH Temperature Details 1 VAPOR DIFFUSION, SITTING DROP 7.5 293 1.4M sodium Citrate, 0.1M HEPES pH 7.5 , VAPOR DIFFUSION, SITTING DROP, temperature 293K
Crystal Properties Matthews coefficient Solvent content 2.04 39.74
Crystal Data Unit Cell Length ( Å ) Angle ( ˚ ) a = 112.322 α = 90 b = 112.322 β = 90 c = 45.8 γ = 90
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 345 mm plate 2012-08-12 M SINGLE WAVELENGTH
Radiation Source ID # Source Type Wavelength List Synchrotron Site Beamline 1 ROTATING ANODE RIGAKU MICROMAX-007 HF 1.5418
Data Collection Overall ID # Resolution (High) Resolution (Low) Percent Possible (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 2.03 35.618 90 54.7 5.7 17594 17594 2 2 31.97
Refinement Statistics Diffraction ID Structure Solution Method Cross Validation method Starting model Resolution (High) Resolution (Low) 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 4HO1 2.07 35.519 1.35 17610 17594 891 99.77 0.189 0.189 0.1866 0.1797 0.2355 0.225 RANDOM 31.7
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] -7.1113 -7.1113 14.2226
RMS Deviations Key Refinement Restraint Deviation f_dihedral_angle_d 13.272 f_angle_d 1.048 f_chiral_restr 0.069 f_bond_d 0.007 f_plane_restr 0.005
Non-Hydrogen Atoms Used in Refinement Non-Hydrogen Atoms Number Protein Atoms 2327 Nucleic Acid Atoms Solvent Atoms 81 Heterogen Atoms 6
Software Software Software Name Purpose HKL-2000 data collection PHASES phasing PHENIX refinement HKL-2000 data reduction HKL-2000 data scaling