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CRYSTAL STRUCTURES OF MUTANT (BETAK87T) TRYPTOPHAN SYNTHASE ALPHA2 BETA2 COMPLEX WITH LIGANDS BOUND TO THE ACTIVE SITES OF THE ALPHA AND BETA SUBUNITS REVEAL LIGAND-INDUCED CONFORMATIONAL CHANGES
Crystallization Crystalization Experiments ID Method pH Temperature Details 1 7.8 50MM NABICINE (PH 7.8), 1MM NA-EDTA, 0.8-1.5MM SPERMINE, 12% PEG8000
Crystal Properties Matthews coefficient Solvent content 2.4 48
Crystal Data Unit Cell Length ( Å ) Angle ( ˚ ) a = 185.8 α = 90 b = 62.3 β = 94.1 c = 67.8 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 298 IMAGE PLATE RIGAKU RAXIS IIC 1992-12-19 M
Radiation Source ID # Source Type Wavelength List Synchrotron Site Beamline 1 ROTATING ANODE RIGAKU RUH2R
Data Collection Overall ID # Resolution (High) Resolution (Low) Percent Possible (Observed) R Merge 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 1.9 84.6 0.044 18.3 2.2 50490 22.5
Highest Resolution Shell ID # Resolution (High) Resolution (Low) Percent Possible (All) Percent Possible (Observed) Mean I Over Sigma (Observed) Redundancy Number Unique Reflections (All) 1.9 2 46.8 3.7
Refinement Statistics Diffraction ID Structure Solution Method Resolution (High) Resolution (Low) Cut-off Sigma (F) Number Reflections (Observed) Number Reflections (R-Free) Percent Reflections (Observed) R-Work (Depositor) R-Work (DCC) R-Free (Depositor) Mean Isotropic B X-RAY DIFFRACTION ISOMORPHOUS WITH PDB ENTRY 1WSY. 1.9 8 2 49684 82.4 0.171 0.145 29.5
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 p_transverse_tor 28.9 p_staggered_tor 18.3 p_scangle_it 6.09 p_scbond_it 4.35 p_mcangle_it 3.23 p_mcbond_it 2.49 p_planar_tor 2.4 p_xyhbond_nbd 0.167 p_singtor_nbd 0.165 p_multtor_nbd 0.158
RMS Deviations Key Refinement Restraint Deviation p_transverse_tor 28.9 p_staggered_tor 18.3 p_scangle_it 6.09 p_scbond_it 4.35 p_mcangle_it 3.23 p_mcbond_it 2.49 p_planar_tor 2.4 p_xyhbond_nbd 0.167 p_singtor_nbd 0.165 p_multtor_nbd 0.158 p_chiral_restr 0.088 p_planar_d 0.019 p_angle_d 0.018 p_plane_restr 0.012 p_bond_d 0.009 p_angle_deg p_hb_or_metal_coord p_xhyhbond_nbd p_orthonormal_tor p_special_tor
Non-Hydrogen Atoms Used in Refinement Non-Hydrogen Atoms Number Protein Atoms 4934 Nucleic Acid Atoms Solvent Atoms 358 Heterogen Atoms 31
Software Software Software Name Purpose X-PLOR model building PROLSQ refinement X-PLOR refinement RIGAKU data reduction RIGAKU data scaling X-PLOR phasing