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Saccharomyces cerevisiae acetohydroxyacid synthase
Starting Model(s) Initial Refinement Model(s) Type Source Accession Code Details experimental model PDB 1JSC
Crystallization Crystalization Experiments ID Method pH Temperature Details 1 VAPOR DIFFUSION, HANGING DROP 5.8 273 34 mg/ml enzyme incubated with 1.4 mM ThDP, 0.5 mM FAD, 14 mM MgCl2, and 4.5 mM DTT. Crystals were obtained my mixing equal volumes (1 ul) of well solution (14 % PEG 4000, 0.25-0.3 M potassium phosphate, 0.2 M ammonium acetate.) and enzyme solution
Crystal Properties Matthews coefficient Solvent content 3.16 61.1
Crystal Data Unit Cell Length ( Å ) Angle ( ˚ ) a = 95.683 α = 90 b = 110.18 β = 90 c = 180.005 γ = 90
Symmetry Space Group P 21 21 21
Diffraction Diffraction Experiment ID # Crystal ID Scattering Type Data Collection Temperature Detector Detector Type Details Collection Date Monochromator Protocol 1 1 x-ray 100 CCD ADSC QUANTUM 210r MIRRORS 2014-03-20 M SINGLE WAVELENGTH
Radiation Source ID # Source Type Wavelength List Synchrotron Site Beamline 1 SYNCHROTRON AUSTRALIAN SYNCHROTRON BEAMLINE MX1 0.9537 Australian Synchrotron MX1
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 1.98 47.84 99.3 0.075 11 5.4 130638
Highest Resolution Shell ID # Resolution (High) Resolution (Low) Percent Possible (All) Percent Possible (Observed) R Merge I (Observed) Mean I Over Sigma (Observed) Redundancy Number Unique Reflections (All) 1 2 2.3 96 0.645 2.1
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) R-Free Selection Details Mean Isotropic B X-RAY DIFFRACTION MOLECULAR REPLACEMENT FREE R-VALUE 1JSC 1.984 42.176 1.34 130573 2000 99.04 0.166 0.1656 0.1691 0.1925 0.1961 Random selection
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 f_dihedral_angle_d 16.662 f_angle_d 1.485 f_chiral_restr 0.085 f_bond_d 0.016 f_plane_restr 0.007
Non-Hydrogen Atoms Used in Refinement Non-Hydrogen Atoms Number Protein Atoms 8406 Nucleic Acid Atoms Solvent Atoms 819 Heterogen Atoms 197
Software Software Software Name Purpose PHENIX refinement XDS data reduction XDS data scaling PHENIX phasing