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Crystal structure of tetra mutant (D67E, A68P, L98I, A301S) of O-acetylserine sulfhydrylase from Haemophilus influenzae in complex with high-affinity inhibitory peptide of serine acetyltransferase from Haemophilus influenzae at 2.4 A
Starting Model(s) Initial Refinement Model(s) Type Source Accession Code Details experimental model PDB 1Y7L 1Y7L
Crystallization Crystalization Experiments ID Method pH Temperature Details 1 VAPOR DIFFUSION, SITTING DROP 7.5 278 0.1M HEPES, 1.3M Sodium Citrate
Crystal Properties Matthews coefficient Solvent content 2.18 43.76
Crystal Data Unit Cell Length ( Å ) Angle ( ˚ ) a = 112.37 α = 90 b = 112.37 β = 90 c = 45.7 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 2012-05-29 M SINGLE WAVELENGTH
Radiation Source ID # Source Type Wavelength List Synchrotron Site Beamline 1 ROTATING ANODE RIGAKU 1.54179
Data Collection Overall ID # Resolution (High) Resolution (Low) Percent Possible (Observed) CC (Half) 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 42.33 99.54 0.886 126.45 15.5 11361
Highest Resolution Shell ID # Resolution (High) Resolution (Low) Percent Possible (All) Percent Possible (Observed) CC (Half) Mean I Over Sigma (Observed) Redundancy Number Unique Reflections (All) 1 2.5 2.589 0.835
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 (All) R-Work (Depositor) R-Free (Depositor) R-Free (DCC) Mean Isotropic B X-RAY DIFFRACTION MOLECULAR REPLACEMENT FREE R-VALUE 1Y7L 2.4 42.33 11361 584 99.965 0.169 0.1679 0.1968 0.2043 29.251
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] -1.757 -1.757 3.513
RMS Deviations Key Refinement Restraint Deviation r_dihedral_angle_2_deg 30.939 r_dihedral_angle_4_deg 15.996 r_dihedral_angle_3_deg 15.747 r_lrange_it 7.272 r_dihedral_angle_1_deg 6.187 r_scangle_it 5.044 r_mcangle_it 3.518 r_scbond_it 3.513 r_mcbond_it 2.318 r_angle_refined_deg 1.559
RMS Deviations Key Refinement Restraint Deviation r_dihedral_angle_2_deg 30.939 r_dihedral_angle_4_deg 15.996 r_dihedral_angle_3_deg 15.747 r_lrange_it 7.272 r_dihedral_angle_1_deg 6.187 r_scangle_it 5.044 r_mcangle_it 3.518 r_scbond_it 3.513 r_mcbond_it 2.318 r_angle_refined_deg 1.559 r_nbtor_refined 0.303 r_nbd_refined 0.212 r_symmetry_xyhbond_nbd_refined 0.174 r_symmetry_nbd_refined 0.152 r_xyhbond_nbd_refined 0.14 r_chiral_restr 0.112 r_bond_refined_d 0.008 r_gen_planes_refined 0.008
Non-Hydrogen Atoms Used in Refinement Non-Hydrogen Atoms Number Protein Atoms 2335 Nucleic Acid Atoms Solvent Atoms 58 Heterogen Atoms
Software Software Software Name Purpose REFMAC refinement iMOSFLM data reduction SCALA data scaling PHASER phasing