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Mutagenesis of zinc ligand residue Cys221 reveals plasticity in the IMP-1 metallo-b-lactamase active site
Starting Model(s) Initial Refinement Model(s) Type Source Accession Code Details experimental model PDB 1DDK pdb entry 1DDK
Crystallization Crystalization Experiments ID Method pH Temperature Details 1 VAPOR DIFFUSION, HANGING DROP 7.5 293 25 mMTris-HCl containing 1 mM zinc sulfate at pH 7.0, and mother liquor containing 0.8M di-sodium hydrogen phosphate, 0.8 M di-potassium hydrogen phosphate, and 0.1 M HEPES at pH 7.5., VAPOR DIFFUSION, HANGING DROP, temperature 293K
Crystal Properties Matthews coefficient Solvent content 2.44 49.57
Crystal Data Unit Cell Length ( Å ) Angle ( ˚ ) a = 50.016 α = 90 b = 60.499 β = 90 c = 84.287 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 77 CCD ADSC QUANTUM 315r 2009-10-25 M SINGLE WAVELENGTH
Radiation Source ID # Source Type Wavelength List Synchrotron Site Beamline 1 SYNCHROTRON ALS BEAMLINE 8.3.1 0.9774 ALS 8.3.1
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 1.74 30.25 97.5 0.036 26059 26059 2 2
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 1.74 1.81 89.2 0.306
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-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 pdb entry 1DDK 1.744 30.249 1.34 26059 26018 1308 97.3 0.1974 0.1959 0.203 0.2259 0.2316 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] -6.3142 6.2064 0.1077
RMS Deviations Key Refinement Restraint Deviation f_dihedral_angle_d 11.042 f_angle_d 0.987 f_chiral_restr 0.067 f_bond_d 0.013 f_plane_restr 0.005
Non-Hydrogen Atoms Used in Refinement Non-Hydrogen Atoms Number Protein Atoms 1746 Nucleic Acid Atoms Solvent Atoms 178 Heterogen Atoms 21
Software Software Software Name Purpose HKL-2000 data collection PHASER phasing PHENIX refinement HKL-2000 data reduction HKL-2000 data scaling