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Crystal structure of CTLA-4 complexed with the Fab of HL32 antibody
Starting Model(s) Initial Refinement Model(s) Type Source Accession Code Details experimental model PDB 3OSK
Crystallization Crystalization Experiments ID Method pH Temperature Details 1 BATCH MODE 6.5 293 1M Li2SO4, 1.5M NH4SO4, 0.1M Sodium citrate
Crystal Properties Matthews coefficient Solvent content 5.5 77.62
Crystal Data Unit Cell Length ( Å ) Angle ( ˚ ) a = 163.862 α = 90 b = 254.478 β = 90 c = 66.935 γ = 90
Symmetry Space Group C 2 2 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 PILATUS3 S 6M 2020-01-13 M SINGLE WAVELENGTH
Radiation Source ID # Source Type Wavelength List Synchrotron Site Beamline 1 SYNCHROTRON SSRF BEAMLINE BL19U1 0.97892 SSRF BL19U1
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 2.95 85 99.9 0.133 0.142 0.049 0.992 7.4 7.9 29874 100.72
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 2.95 3.11 1.865 0.772 0.372 0.7
Refinement Statistics Diffraction ID Structure Solution Method Cross Validation method Starting model 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 3OSK 3.05 75.33 1.34 27133 1380 99.69 0.2508 0.2486 0.2514 0.2925 0.3017 70
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 8.2759 f_angle_d 0.5526 f_chiral_restr 0.0453 f_plane_restr 0.0042 f_bond_d 0.0024
Non-Hydrogen Atoms Used in Refinement Non-Hydrogen Atoms Number Protein Atoms 4149 Nucleic Acid Atoms Solvent Atoms Heterogen Atoms 14
Software Software Software Name Purpose REFMAC refinement PHENIX refinement MOSFLM data reduction SCALEPACK data scaling PHASER phasing