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Crystal structure of Tryptophan Synthase at 1.65 A resolution in complex with alpha aminoacrylate E(A-A) and benzimidazole in the beta site and the F9 inhibitor in the alpha site
Starting Model(s) Initial Refinement Model(s) Type Source Accession Code Details experimental model PDB 1TJP
Crystallization Crystalization Experiments ID Method pH Temperature Details 1 VAPOR DIFFUSION, HANGING DROP 7.8 298 50 mM Bicine-CsOH, 10% PEG 8000, 2 mM Spermine, pH 7.8, VAPOR DIFFUSION, HANGING DROP, temperature 298K
Crystal Properties Matthews coefficient Solvent content 2.63 53.24
Crystal Data Unit Cell Length ( Å ) Angle ( ˚ ) a = 183.96 α = 90 b = 60.96 β = 94.58 c = 67.41 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++ 2011-12-31 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 Sym I (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 1.65 91.686 98.3 0.061 10.8 3.6 87817 87817 -3
Highest Resolution Shell ID # Resolution (High) Resolution (Low) Percent Possible (All) Percent Possible (Observed) R Merge I (Observed) R-Sym I (Observed) Mean I Over Sigma (Observed) Redundancy Number Unique Reflections (All) 1 1.65 1.74 96.2 0.33 0.33 2.3 3.6 12465
Refinement Statistics Diffraction ID Structure Solution Method Cross Validation method Starting model Resolution (High) Resolution (Low) 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 1TJP 1.65 28.19 87867 87784 4390 97.98 0.1445 0.1445 0.1421 0.1399 0.1901 0.1878 RANDOM 23.318
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] -0.08 0.12 0.22 -0.12
RMS Deviations Key Refinement Restraint Deviation r_dihedral_angle_2_deg 36.177 r_sphericity_free 28.906 r_dihedral_angle_4_deg 18.357 r_dihedral_angle_3_deg 13.318 r_sphericity_bonded 11.414 r_dihedral_angle_1_deg 5.808 r_rigid_bond_restr 2.628 r_angle_refined_deg 1.427 r_chiral_restr 0.095 r_bond_refined_d 0.01
RMS Deviations Key Refinement Restraint Deviation r_dihedral_angle_2_deg 36.177 r_sphericity_free 28.906 r_dihedral_angle_4_deg 18.357 r_dihedral_angle_3_deg 13.318 r_sphericity_bonded 11.414 r_dihedral_angle_1_deg 5.808 r_rigid_bond_restr 2.628 r_angle_refined_deg 1.427 r_chiral_restr 0.095 r_bond_refined_d 0.01 r_gen_planes_refined 0.007
Non-Hydrogen Atoms Used in Refinement Non-Hydrogen Atoms Number Protein Atoms 5008 Nucleic Acid Atoms Solvent Atoms 722 Heterogen Atoms 140
Software Software Software Name Purpose MOSFLM data reduction SCALA data scaling PHASER phasing DM phasing REFMAC refinement PDB_EXTRACT data extraction CrystalClear data collection