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Crystal structure of the regulatory subunit of acetohydroxyacid synthase isozyme III from E. coli
Crystallization Crystalization Experiments ID Method pH Temperature Details 1 VAPOR DIFFUSION 8.5 293 10-25 mg/ml protein in 0.5 M MgCl2, 1:1 mixed with reservoir made up of 30-40% PEG400, 0.4-0.6 M MgCl2, 100 mM Tris-HCl pH 8.5, VAPOR DIFFUSION, temperature 293K
Crystal Properties Matthews coefficient Solvent content 2.69 54.26
Crystal Data Unit Cell Length ( Å ) Angle ( ˚ ) a = 98.6 α = 90 b = 98.6 β = 90 c = 80 γ = 90
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 bent crystal 2004-11-30 M MAD 2 1 x-ray M SINGLE WAVELENGTH 3 1
Radiation Source ID # Source Type Wavelength List Synchrotron Site Beamline 1 SYNCHROTRON ESRF BEAMLINE ID14-4 0.97924, 0.97942, 0.93928 ESRF ID14-4
Data Collection Overall ID # Resolution (High) Resolution (Low) Percent Possible (Observed) R Merge I (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 1,2 1.75 40 99.2 0.063 0.057 15.1 6.15 38313 38313 38.2
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) 1.75 1.8 100 0.541 0.59 3.3 6.2 3076
Refinement Statistics Diffraction ID Structure Solution Method Cross Validation method 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-Free (Depositor) R-Free (DCC) R-Free Selection Details Mean Isotropic B X-RAY DIFFRACTION MAD THROUGHOUT 1.75 20 38313 38302 1917 99.26 0.174 0.174 0.171 0.227 0.2374 RANDOM 41.821
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] -0.14 -0.14 0.27
RMS Deviations Key Refinement Restraint Deviation r_dihedral_angle_2_deg 38.31 r_dihedral_angle_4_deg 22.608 r_dihedral_angle_3_deg 17.856 r_dihedral_angle_1_deg 8.516 r_scangle_it 7.705 r_scbond_it 5.557 r_mcangle_it 3.883 r_mcbond_it 2.6 r_angle_refined_deg 2.118 r_nbtor_refined 0.307
RMS Deviations Key Refinement Restraint Deviation r_dihedral_angle_2_deg 38.31 r_dihedral_angle_4_deg 22.608 r_dihedral_angle_3_deg 17.856 r_dihedral_angle_1_deg 8.516 r_scangle_it 7.705 r_scbond_it 5.557 r_mcangle_it 3.883 r_mcbond_it 2.6 r_angle_refined_deg 2.118 r_nbtor_refined 0.307 r_nbd_refined 0.257 r_chiral_restr 0.243 r_symmetry_vdw_refined 0.227 r_symmetry_hbond_refined 0.222 r_xyhbond_nbd_refined 0.219 r_bond_refined_d 0.025 r_gen_planes_refined 0.008
Non-Hydrogen Atoms Used in Refinement Non-Hydrogen Atoms Number Protein Atoms 2474 Nucleic Acid Atoms Solvent Atoms 258 Heterogen Atoms 52
Software Software Software Name Purpose XSCALE data scaling SHARP phasing REFMAC refinement PDB_EXTRACT data extraction