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Structure of fusion complex of homo trimeric major pilin subunits CfaB of CFA/I fimbirae from ETEC E. coli
Crystallization Crystalization Experiments ID Method pH Temperature Details 1 VAPOR DIFFUSION 3.5 the CfaBBB protein (10 mg/ml in 20 mM Tri-HCl, pH 7.5, 100 mM NaCl) is crystallized by mixing in 1:1 ratio with 22% PEG 4000, 100 mM ammonium sulfate, 100 mM sodium citrate at pH 3.5, 1% ethylene glycol, 2% PEG 400, 1% iso-propanol, 10 mM MgCl2, 0.3% 1,2,3 heptanetriol; VAPOR DIFFUSION
Crystal Properties Matthews coefficient Solvent content 2.38 48.39
Crystal Data Unit Cell Length ( Å ) Angle ( ˚ ) a = 127.406 α = 90 b = 44.982 β = 125.35 c = 97.88 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 MARMOSAIC 300 mm CCD M SINGLE WAVELENGTH
Radiation Source ID # Source Type Wavelength List Synchrotron Site Beamline 1 SYNCHROTRON APS BEAMLINE 22-ID 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 2.1 20 25005
Highest Resolution Shell ID # Resolution (High) Resolution (Low) Percent Possible (All) Percent Possible (Observed) Mean I Over Sigma (Observed) Redundancy Number Unique Reflections (All) 1 2.1
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-Work (DCC) R-Free (Depositor) R-Free Selection Details Mean Isotropic B X-RAY DIFFRACTION MOLECULAR REPLACEMENT THROUGHOUT 2.1 20 23716 1243 93.36 0.23578 0.233 0.2369 0.28301 RANDOM 62.294
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] -6.99 -3.45 4.27 -1.27
RMS Deviations Key Refinement Restraint Deviation r_dihedral_angle_2_deg 41.593 r_dihedral_angle_3_deg 15.011 r_dihedral_angle_1_deg 6.268 r_scangle_it 4.257 r_dihedral_angle_4_deg 4.056 r_scbond_it 3.054 r_mcangle_it 1.864 r_angle_refined_deg 1.42 r_mcbond_it 1.191 r_nbtor_refined 0.267
RMS Deviations Key Refinement Restraint Deviation r_dihedral_angle_2_deg 41.593 r_dihedral_angle_3_deg 15.011 r_dihedral_angle_1_deg 6.268 r_scangle_it 4.257 r_dihedral_angle_4_deg 4.056 r_scbond_it 3.054 r_mcangle_it 1.864 r_angle_refined_deg 1.42 r_mcbond_it 1.191 r_nbtor_refined 0.267 r_symmetry_vdw_refined 0.179 r_nbd_refined 0.145 r_chiral_restr 0.115 r_xyhbond_nbd_refined 0.111 r_symmetry_hbond_refined 0.087 r_bond_refined_d 0.019 r_gen_planes_refined 0.015 r_metal_ion_refined 0.015 r_bond_other_d r_angle_other_deg r_gen_planes_other r_nbd_other r_nbtor_other r_xyhbond_nbd_other r_metal_ion_other r_symmetry_vdw_other r_symmetry_hbond_other r_symmetry_metal_ion_refined r_symmetry_metal_ion_other r_mcbond_other r_rigid_bond_restr r_sphericity_free r_sphericity_bonded
Non-Hydrogen Atoms Used in Refinement Non-Hydrogen Atoms Number Protein Atoms 3288 Nucleic Acid Atoms Solvent Atoms 108 Heterogen Atoms 4
Software Software Software Name Purpose HKL-2000 data collection PHASER phasing REFMAC refinement HKL-2000 data reduction HKL-2000 data scaling