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Crystal structure of the CFTR inhibitory factor Cif with the H269C mutation labelled with a fluorine probe
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 18% (w/v) PEG 8000, 200 mM calcium chloride, 100 mM sodium acetate, pH 5.0
Crystal Properties Matthews coefficient Solvent content 2.31 46.79
Crystal Data Unit Cell Length ( Å ) Angle ( ˚ ) a = 167.703 α = 90 b = 83.805 β = 100.567 c = 88.991 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 2026-07-23 M SINGLE WAVELENGTH
Radiation Source ID # Source Type Wavelength List Synchrotron Site Beamline 1 SYNCHROTRON NSLS-II BEAMLINE 17-ID-2 0.9201 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 1.47 43.74 99.94 0.08246 0.08929 0.03394 0.999 11.41 6.8 205222 17.32
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 1.47 1.52 99.68 0.9281 1.021 0.4193 0.659 1.73 5.7
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 1.47 43.74 1.35 205205 10260 99.94 0.1613 0.1607 0.1607 0.1719 0.1719 21.41
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 12.919 f_angle_d 0.8431 f_chiral_restr 0.0784 f_plane_restr 0.0085 f_bond_d 0.0055
Non-Hydrogen Atoms Used in Refinement Non-Hydrogen Atoms Number Protein Atoms 9400 Nucleic Acid Atoms Solvent Atoms 1298 Heterogen Atoms 40
Software Software Software Name Purpose PHENIX refinement XDS data reduction XSCALE data scaling PHASER phasing Coot model building