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1.60 Angstrom resolution crystal structure of the beta-Q114A mutant of Tryptophan Synthase in complex with N-(4'-trifluoromethoxybenzenesulfonyl)-2-amino-1-ethylphosphate (F9F) at the enzyme alpha-site, cesium ion at the metal coordination site, and 2-aminophenol quinonoid at the enzyme beta site
Starting Model(s) Initial Refinement Model(s) Type Source Accession Code Details experimental model PDB 6O1H
Crystallization Crystalization Experiments ID Method pH Temperature Details 1 VAPOR DIFFUSION, SITTING DROP 7.6 298 50 mM Bicine-CsOH, 8% PEG 8,000, 4 mM Spermine, pH 7.6
Crystal Properties Matthews coefficient Solvent content 2.63 53.29
Crystal Data Unit Cell Length ( Å ) Angle ( ˚ ) a = 184.09 α = 90 b = 60.59 β = 94.63 c = 67.33 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 2020-01-08 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 1.6 91.745 99.3 0.038 0.038 0.06 0.031 11.9 3.5 96913
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 1.6 1.69 96 0.294 0.294 0.461 0.258 2.5 3.1
Refinement Statistics Diffraction ID Structure Solution Method Cross Validation method Starting model Resolution (High) Resolution (Low) Cut-off Sigma (F) 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) Mean Isotropic B X-RAY DIFFRACTION MOLECULAR REPLACEMENT THROUGHOUT 6O1H 1.6 29.31 1.35 96525 4719 98.92 0.1718 0.1706 0.1725 0.1963 0.198 32.8813
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]
Non-Hydrogen Atoms Used in Refinement Non-Hydrogen Atoms Number Protein Atoms 4961 Nucleic Acid Atoms Solvent Atoms 684 Heterogen Atoms 203
Software Software Software Name Purpose iMOSFLM data reduction SCALA data scaling PHASER phasing DM phasing PHENIX refinement PDB_EXTRACT data extraction