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The internal aldimine crystal structure of Salmonella typhimurium Tryptophan Synthase mutant beta-S377A in complex with inhibitor 2-({[4-(trifluoromethoxy)phenyl]sulfonyl}amino)ethyl dihydrogen phosphate (F9F) at the alpha-site, Cesium ion at the metal coordination site and L-Tryptophan at the enzyme beta-site
Starting Model(s) Initial Refinement Model(s) Type Source Accession Code Details experimental model PDB 6C73
Crystallization Crystalization Experiments ID Method pH Temperature Details 1 VAPOR DIFFUSION, SITTING DROP 7.8 298 50 mM Bicine-CsOH, 10% PEG 8,000, 4 mM Spermine, pH 7.8
Crystal Properties Matthews coefficient Solvent content 2.49 50.59
Crystal Data Unit Cell Length ( Å ) Angle ( ˚ ) a = 181.41 α = 90 b = 58.57 β = 94.36 c = 67.19 γ = 90
Symmetry Space Group C 1 2 1
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 RIGAKU RAXIS IV++ Osmic Varimax HF ArcSec 2020-03-15 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) R Merge I (Observed) R Sym I (Observed) Rrim I (All) Rpim I (All) 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 1.55 90.442 96.4 0.071 0.071 0.104 0.06 5.9 2.9 98374
Highest Resolution Shell ID # Resolution (High) Resolution (Low) Percent Possible (All) Percent Possible (Observed) R Merge I (Observed) R-Sym I (Observed) Rrim I (All) Rpim I (All) Mean I Over Sigma (Observed) Redundancy Number Unique Reflections (All) 1 1.55 1.63 75.7 0.386 0.386 0.624 0.387 1.4 2.1
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 (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 6C73 1.55 38.88 93149 4765 95.88 0.1862 0.1848 0.1847 0.2148 0.2149 RANDOM 20.96
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]
RMS Deviations Key Refinement Restraint Deviation r_dihedral_angle_2_deg 32.665 r_dihedral_angle_4_deg 18.416 r_dihedral_angle_3_deg 12.627 r_dihedral_angle_1_deg 6.174 r_angle_refined_deg 1.383 r_chiral_restr 0.094 r_bond_refined_d 0.008 r_gen_planes_refined 0.007
Non-Hydrogen Atoms Used in Refinement Non-Hydrogen Atoms Number Protein Atoms 5000 Nucleic Acid Atoms Solvent Atoms 774 Heterogen Atoms 210
Software Software Software Name Purpose MOSFLM data reduction SCALA data scaling MOLREP phasing DM phasing REFMAC refinement PDB_EXTRACT data extraction