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Structural Studies Reveal the Inactivation of E. coli L-Aspartate Aminotransferase by (s)-4,5-dihydro-2-thiophenecarboxylic acid (SADTA) via Two Mechanisms (at pH 7.5)
Crystallization Crystalization Experiments ID Method pH Temperature Details 1 EVAPORATION 7.5 298 The well solutions contained 25 mM potassium phosphate and 43% saturated ammonium sulfate with 20 mM of SADTA at pH 7.5, EVAPORATION, temperature 298K
Crystal Properties Matthews coefficient Solvent content 2.94 58.16
Crystal Data Unit Cell Length ( Å ) Angle ( ˚ ) a = 153.316 α = 90 b = 85.145 β = 90 c = 78.833 γ = 90
Symmetry Space Group C 2 2 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 315 2005-02-20 M SINGLE WAVELENGTH
Radiation Source ID # Source Type Wavelength List Synchrotron Site Beamline 1 SYNCHROTRON APS BEAMLINE 14-BM-C 0.9 APS 14-BM-C
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 1.45 24.8 97.1 0.056 14.5 6.5 169762
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 1.45 1.5 97.3 0.516 3.6 6.3 8748
Refinement Statistics Diffraction ID Structure Solution Method Cross Validation method Resolution (High) Resolution (Low) Number Reflections (Observed) Number Reflections (R-Free) Percent Reflections (Observed) R-Factor (Observed) R-Work (Depositor) R-Free (Depositor) R-Free (DCC) R-Free Selection Details Mean Isotropic B X-RAY DIFFRACTION MOLECULAR REPLACEMENT THROUGHOUT 1.45 24.8 83931 4439 97.14 0.14424 0.14244 0.17774 0.1857 RANDOM 22.83
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] -1.24 0.77 0.46
RMS Deviations Key Refinement Restraint Deviation r_dihedral_angle_2_deg 33.251 r_dihedral_angle_4_deg 15.588 r_dihedral_angle_3_deg 13.781 r_dihedral_angle_1_deg 6.048 r_scangle_it 5.719 r_scbond_it 4.245 r_mcangle_it 2.854 r_mcbond_it 2.007 r_angle_refined_deg 1.903 r_nbtor_refined 0.319
RMS Deviations Key Refinement Restraint Deviation r_dihedral_angle_2_deg 33.251 r_dihedral_angle_4_deg 15.588 r_dihedral_angle_3_deg 13.781 r_dihedral_angle_1_deg 6.048 r_scangle_it 5.719 r_scbond_it 4.245 r_mcangle_it 2.854 r_mcbond_it 2.007 r_angle_refined_deg 1.903 r_nbtor_refined 0.319 r_nbd_refined 0.257 r_symmetry_vdw_refined 0.233 r_chiral_restr 0.219 r_xyhbond_nbd_refined 0.194 r_symmetry_hbond_refined 0.186 r_bond_refined_d 0.017 r_gen_planes_refined 0.01
Non-Hydrogen Atoms Used in Refinement Non-Hydrogen Atoms Number Protein Atoms 2978 Nucleic Acid Atoms Solvent Atoms 414 Heterogen Atoms 92
Software Software Software Name Purpose REFMAC refinement ADSC data collection HKL-2000 data reduction HKL-2000 data scaling PHASER phasing