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Polar Interface Homodimer - S4A
Starting Model(s) Initial Refinement Model(s) Type Source Accession Code Details in silico model AlphaFold
Crystallization Crystalization Experiments ID Method pH Temperature Details 1 VAPOR DIFFUSION, SITTING DROP 293.15 0.2 M Ammonium Nitrate, 20% w/v Polyethylene Glycol 20,000
Crystal Properties Matthews coefficient Solvent content 2.08 40.8
Crystal Data Unit Cell Length ( Å ) Angle ( ˚ ) a = 82.534 α = 90 b = 82.534 β = 90 c = 187.932 γ = 90
Symmetry Space Group P 41 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 PIXEL DECTRIS EIGER X 16M 2026-04-12 M SINGLE WAVELENGTH
Radiation Source ID # Source Type Wavelength List Synchrotron Site Beamline 1 SYNCHROTRON APS BEAMLINE 22-ID 1.0 APS 22-ID
Data Collection Overall ID # Resolution (High) Resolution (Low) Percent Possible (Observed) 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 40.31 99.85 0.999 6.29 7 109368 27.06
Highest Resolution Shell ID # Resolution (High) Resolution (Low) Percent Possible (All) Percent Possible (Observed) CC (Half) Mean I Over Sigma (Observed) Redundancy Number Unique Reflections (All) 1 1.83 1.85 0.4516
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 40.31 1.34 109212 3763 99.85 0.1966 0.1955 0.1959 0.2285 0.2298 38.66
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 14.6539 f_angle_d 0.9975 f_chiral_restr 0.0487 f_plane_restr 0.0271 f_bond_d 0.0077
Non-Hydrogen Atoms Used in Refinement Non-Hydrogen Atoms Number Protein Atoms 5337 Nucleic Acid Atoms Solvent Atoms 304 Heterogen Atoms 24
Software Software Software Name Purpose PHENIX refinement PROTEUM PLUS data reduction PROTEUM PLUS data scaling PHASER phasing Coot model building