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The Ligand Bound Structure of E.coli BtuF, the Periplasmic Binding Protein for Vitamin B12
Crystallization Crystalization Experiments ID Method pH Temperature Details 1 VAPOR DIFFUSION, HANGING DROP 4.6 294 NaCl, ethanol, acetate, pH 4.6, VAPOR DIFFUSION, HANGING DROP, temperature 294K
Crystal Properties Matthews coefficient Solvent content 2.13 41.81
Crystal Data Unit Cell Length ( Å ) Angle ( ˚ ) a = 131.73 α = 90 b = 92.02 β = 90 c = 44.69 γ = 90
Symmetry Space Group P 21 21 2
Diffraction Diffraction Experiment ID # Crystal ID Scattering Type Data Collection Temperature Detector Detector Type Details Collection Date Monochromator Protocol 1 1 x-ray 100 2002-11-15 M MAD 2 1 100
Radiation Source ID # Source Type Wavelength List Synchrotron Site Beamline 1 SYNCHROTRON NSLS BEAMLINE X12C NSLS X12C
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 2 20 34910 24.8
Refinement Statistics Diffraction ID Structure Solution Method Cross Validation method 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 MAD THROUGHOUT 2 20 2 36765 34564 1732 24.4 0.234 0.2056 0.261 0.25 RANDOM 31.5
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] 8.82 -5.91 -2.91
RMS Deviations Key Refinement Restraint Deviation x_dihedral_angle_d 22.5 x_improper_angle_d 1.31 x_angle_deg 1.3 x_bond_d 0.006
Non-Hydrogen Atoms Used in Refinement Non-Hydrogen Atoms Number Protein Atoms 3804 Nucleic Acid Atoms Solvent Atoms 549 Heterogen Atoms 186
Software Software Software Name Purpose DENZO data reduction SCALEPACK data scaling SOLVE phasing CNS refinement