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Crystal structure of Interferon alpha8 bound to IFA003 ScFv
Starting Model(s) Initial Refinement Model(s) Type Source Accession Code Details experimental model PDB 9GVL experimental model PDB 7STS experimental model PDB 6PZW
Crystallization Crystalization Experiments ID Method pH Temperature Details 1 VAPOR DIFFUSION, SITTING DROP 298.15 0.12 M Alcohols (1,6-Hexanediol; 1-Butanol 1,2-Propanediol (racemic); 2-propanol; 1,4-butanediol; 1,3-propanediol), 0.1 M Buffer System 1 pH 6.5 (Imidazole, MES acid), 37.5 % v/v Precipitant Mix 4 (MPD (racemic); PEG 1000; PEG 3350)
Crystal Properties Matthews coefficient Solvent content 2.02 39.08
Crystal Data Unit Cell Length ( Å ) Angle ( ˚ ) a = 37.831 α = 90 b = 66.305 β = 90 c = 164.267 γ = 90
Symmetry Space Group P 21 21 21
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 2026-05-06 M SINGLE WAVELENGTH
Radiation Source ID # Source Type Wavelength List Synchrotron Site Beamline 1 SYNCHROTRON SSRL BEAMLINE BL12-1 0.979460 SSRL BL12-1
Data Collection Overall ID # Resolution (High) Resolution (Low) Percent Possible (Observed) R Merge I (Observed) 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 2.08 36.87 99.4 0.267 0.114 0.981 7.6 6.6 25540 21.31
Highest Resolution Shell ID # Resolution (High) Resolution (Low) Percent Possible (All) Percent Possible (Observed) R Merge I (Observed) Rpim I (All) CC (Half) Mean I Over Sigma (Observed) Redundancy Number Unique Reflections (All) 1 2.08 2.14 1.913 0.837 0.462
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 2.08 34.91 1.34 25344 1267 98.6 0.1824 0.1805 0.1807 0.2192 0.2203 25.7
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 12.118 f_angle_d 0.779 f_chiral_restr 0.0501 f_plane_restr 0.0072 f_bond_d 0.0062
Non-Hydrogen Atoms Used in Refinement Non-Hydrogen Atoms Number Protein Atoms 2879 Nucleic Acid Atoms Solvent Atoms 234 Heterogen Atoms
Software Software Software Name Purpose PHENIX refinement XDS data reduction Aimless data scaling PHASER phasing