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Crystal structure of the E153Q/S179G mutant of the CFTR inhibitory factor Cif containing the adducted 14,15-EET hydrolysis intermediate
Starting Model(s) Initial Refinement Model(s) Type Source Accession Code Details experimental model PDB 3KD2
Crystallization Crystalization Experiments ID Method pH Temperature Details 1 VAPOR DIFFUSION, HANGING DROP 5 291 20% (w/v) PEG 8000, 125 mM calcium chloride, 100 mM sodium acetate pH 5, 2 mM 14,15-EET, 2% (v/v) DMSO
Crystal Properties Matthews coefficient Solvent content 2.34 47.56
Crystal Data Unit Cell Length ( Å ) Angle ( ˚ ) a = 168.842 α = 90 b = 83.639 β = 100.192 c = 89.765 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 PIXEL DECTRIS EIGER X 16M Horizontal pre-focus bimorph mirror & KB bimorph mirrors 2025-11-25 M SINGLE WAVELENGTH
Radiation Source ID # Source Type Wavelength List Synchrotron Site Beamline 1 SYNCHROTRON NSLS-II BEAMLINE 17-ID-2 0.97934 NSLS-II 17-ID-2
Data Collection Overall ID # Resolution (High) Resolution (Low) Percent Possible (Observed) R Merge I (Observed) Rrim I (All) Rpim I (All) CC (Half) 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 1.83 44.17 99.28 0.126 0.1431 0.06666 0.995 7.87 4.3 107626 21.61
Highest Resolution Shell ID # Resolution (High) Resolution (Low) Percent Possible (All) Percent Possible (Observed) R Merge I (Observed) Rrim I (All) Rpim I (All) CC (Half) Mean I Over Sigma (Observed) Redundancy Number Unique Reflections (All) 1 1.83 1.9 98.86 0.8209 0.9286 0.4275 0.687 2.02 4.4
Refinement Statistics Diffraction ID Structure Solution Method Cross Validation 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) Mean Isotropic B X-RAY DIFFRACTION MOLECULAR REPLACEMENT FREE R-VALUE 1.83 42.22 1.36 107599 5390 99.28 0.1637 0.1617 0.1619 0.2005 0.2005 24.83
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 14.3749 f_angle_d 0.8738 f_chiral_restr 0.054 f_plane_restr 0.0088 f_bond_d 0.0072
Non-Hydrogen Atoms Used in Refinement Non-Hydrogen Atoms Number Protein Atoms 9408 Nucleic Acid Atoms Solvent Atoms 1080 Heterogen Atoms 97
Software Software Software Name Purpose PHENIX refinement XDS data reduction XSCALE data scaling PHASER phasing Coot model building