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crystal structrue of a Caspase mutant-C131A
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 PEG 1500, PCB pH7.5
Crystal Properties Matthews coefficient Solvent content 2.27 45.83
Crystal Data Unit Cell Length ( Å ) Angle ( ˚ ) a = 78.71 α = 90 b = 124.186 β = 90 c = 138.022 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 EIGER2 S 9M 2025-06-30 M SINGLE WAVELENGTH
Radiation Source ID # Source Type Wavelength List Synchrotron Site Beamline 1 SYNCHROTRON SSRF BEAMLINE BL02U1 0.979 SSRF BL02U1
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 3.28 92.32 87.9 0.995 8.8 7.6 18851 84.33
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 3.28 3.46 0.573
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 3.28 68.37 1.34 18753 898 87.82 0.2591 0.2565 0.2582 0.3106 0.3087 90.33
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 3.7865 f_angle_d 0.5409 f_chiral_restr 0.0433 f_plane_restr 0.0039 f_bond_d 0.0029
Non-Hydrogen Atoms Used in Refinement Non-Hydrogen Atoms Number Protein Atoms 9383 Nucleic Acid Atoms Solvent Atoms Heterogen Atoms
Software Software Software Name Purpose PHENIX refinement xia2 data reduction DIALS data scaling PHENIX phasing Coot model building