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Crystal structure of the antibiotic-resistance methyltransferase Kmr
Crystallization Crystalization Experiments ID Method pH Temperature Details 1 VAPOR DIFFUSION, SITTING DROP 7.5 293 20 mM HEPES buffer pH 7.5, 22% PEG MME 2000, 200 mM potassium thiocyanate, cryoprotected with 20% glycerol, VAPOR DIFFUSION, SITTING DROP, temperature 293K
Crystal Properties Matthews coefficient Solvent content 3.06 59.83
Crystal Data Unit Cell Length ( Å ) Angle ( ˚ ) a = 89.643 α = 90 b = 89.643 β = 90 c = 126.211 γ = 120
Symmetry Space Group P 31 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 193 CCD RAYONIX MX300HS 2010-04-22 M SINGLE WAVELENGTH
Radiation Source ID # Source Type Wavelength List Synchrotron Site Beamline 1 SYNCHROTRON APS BEAMLINE 22-ID 1 APS 22-ID
Data Collection Overall ID # Resolution (High) Resolution (Low) Percent Possible (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 1.8 50 97.5 54737 54737
Refinement Statistics Diffraction ID Structure Solution Method Resolution (High) Resolution (Low) Cut-off Sigma (F) 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 1.801 37.102 1.34 54688 2778 99.66 0.2009 0.1992 0.202 0.2326 0.2333 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]
RMS Deviations Key Refinement Restraint Deviation f_dihedral_angle_d 11.25 f_angle_d 1.647 f_chiral_restr 0.114 f_bond_d 0.017 f_plane_restr 0.009
Non-Hydrogen Atoms Used in Refinement Non-Hydrogen Atoms Number Protein Atoms 2957 Nucleic Acid Atoms Solvent Atoms 163 Heterogen Atoms
Software Software Software Name Purpose PHASER phasing PHENIX refinement HKL-2000 data reduction HKL-2000 data scaling