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Crystal structure of A68P single mutant of O-acetylserine sulfhydrylase from Haemophilus influenzae in complex with high-affinity inhibitory peptide from serine acetyltransferase of Salmonella typhimurium at 2.1 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 7.4 278 0.1M HEPES, 1.3M Sodium citrate
Crystal Properties Matthews coefficient Solvent content 2.2 44.14
Crystal Data Unit Cell Length ( Å ) Angle ( ˚ ) a = 112.599 α = 90 b = 112.599 β = 90 c = 45.822 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 293 IMAGE PLATE MAR scanner 345 mm plate 2012-05-26 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 2.101 39.81 99.95 1 37.22 1.1 16969 32.49
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 2.101 2.176 1
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-Work (DCC) R-Free (Depositor) R-Free (DCC) Mean Isotropic B X-RAY DIFFRACTION MOLECULAR REPLACEMENT FREE R-VALUE 1Y7L 2.101 39.81 16967 824 99.959 0.224 0.222 0.2212 0.2553 0.2521 37.309
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] -2.031 -2.031 4.062
RMS Deviations Key Refinement Restraint Deviation r_dihedral_angle_2_deg 30.146 r_dihedral_angle_4_deg 16.543 r_dihedral_angle_3_deg 15.131 r_lrange_it 7.649 r_dihedral_angle_1_deg 6.322 r_scangle_it 5.174 r_mcangle_it 4.039 r_scbond_it 3.714 r_mcbond_it 3.001 r_angle_refined_deg 1.519
RMS Deviations Key Refinement Restraint Deviation r_dihedral_angle_2_deg 30.146 r_dihedral_angle_4_deg 16.543 r_dihedral_angle_3_deg 15.131 r_lrange_it 7.649 r_dihedral_angle_1_deg 6.322 r_scangle_it 5.174 r_mcangle_it 4.039 r_scbond_it 3.714 r_mcbond_it 3.001 r_angle_refined_deg 1.519 r_nbtor_refined 0.305 r_nbd_refined 0.218 r_symmetry_nbd_refined 0.211 r_symmetry_xyhbond_nbd_refined 0.17 r_xyhbond_nbd_refined 0.112 r_chiral_restr 0.111 r_bond_refined_d 0.007 r_gen_planes_refined 0.007
Non-Hydrogen Atoms Used in Refinement Non-Hydrogen Atoms Number Protein Atoms 2307 Nucleic Acid Atoms Solvent Atoms 37 Heterogen Atoms
Software Software Software Name Purpose REFMAC refinement HKL-2000 data reduction SCALA data scaling PHASER phasing