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Crystal structure of Arabidopsis thaliana Acetohydroxyacid synthase In Complex With An Imidazolinone Herbicide, Imazaquin
Starting Model(s) Initial Refinement Model(s) Type Source Accession Code Details experimental model PDB 1YBH
Crystallization Crystalization Experiments ID Method pH Temperature Details 1 VAPOR DIFFUSION, HANGING DROP 9 290 Tris, FAD, DTT, ThDP, magnesium chloride, imazaquin, CHES, lithium sufate, potassium sodium tartrate , pH 9.0, VAPOR DIFFUSION, HANGING DROP, temperature 290K
Crystal Properties Matthews coefficient Solvent content 6.6 81
Crystal Data Unit Cell Length ( Å ) Angle ( ˚ ) a = 179.081 α = 90 b = 179.081 β = 90 c = 186.077 γ = 120
Symmetry Space Group P 64 2 2
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 4 mirrors 2003-12-12 M SINGLE WAVELENGTH
Radiation Source ID # Source Type Wavelength List Synchrotron Site Beamline 1 SYNCHROTRON APS BEAMLINE 14-BM-D 1.00 APS 14-BM-D
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 2.8 50 90.8 0.06 23 5.7 40076 40076 -3
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 2.8 2.9 56 3.26 3 2424
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 FOURIER SYNTHESIS THROUGHOUT 1YBH 2.8 50 40076 36946 3486 84.3 0.2004 0.2004 0.1987 0.2 0.2157 0.2133 random
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 4430 Nucleic Acid Atoms Solvent Atoms 287 Heterogen Atoms 139
Software Software Software Name Purpose DENZO data reduction SCALEPACK data scaling CNS refinement CNS phasing