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X-ray Crystal Structure of AmpC WT beta-Lactamase in Complex with Covalently Bound Cephalothin
Starting Model(s) Initial Refinement Model(s) Type Source Accession Code Details experimental model PDB 1FSY PDB entry 1FSY
Crystallization Crystalization Experiments ID Method pH Temperature Details 1 VAPOR DIFFUSION, HANGING DROP 8.7 296 1.7 M potassium phosphate, then crystal soaked with saturated cephalothin solution in crystallizing buffer for 2x 15 minutes, pH 8.7, VAPOR DIFFUSION, HANGING DROP, temperature 296K
Crystal Properties Matthews coefficient Solvent content 2.51 51.06
Crystal Data Unit Cell Length ( Å ) Angle ( ˚ ) a = 117.69 α = 90 b = 77.2 β = 116.13 c = 97.59 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 100 CCD MARRESEARCH 2001-07-05 M SINGLE WAVELENGTH
Radiation Source ID # Source Type Wavelength List Synchrotron Site Beamline 1 SYNCHROTRON APS BEAMLINE 5ID-B 1.0 APS 5ID-B
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 2.06 20 96.2 0.062 23.2 3.6 46729 -3
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) 2.06 2.11 83.4 0.32 2.93
Refinement Statistics Diffraction ID Structure Solution Method Starting model Resolution (High) Resolution (Low) Cut-off Sigma (F) Number Reflections (All) Number Reflections (Observed) Number Reflections (R-Free) Percent Reflections (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 PDB entry 1FSY 2.06 20 2 46729 41731 2071 0.176 0.1811 0.219 0.2267 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] -1.888 -6.252 0.242 1.646
RMS Deviations Key Refinement Restraint Deviation c_scangle_it 2.936 c_scbond_it 2.019 c_mcangle_it 1.887 c_angle_deg 1.7 c_mcbond_it 1.239 c_bond_d 0.012
Non-Hydrogen Atoms Used in Refinement Non-Hydrogen Atoms Number Protein Atoms 5541 Nucleic Acid Atoms Solvent Atoms 339 Heterogen Atoms 27
Software Software Software Name Purpose DENZO data reduction SCALEPACK data scaling CNS refinement CNS phasing