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Crystal structure of human cathepsin L after reaction with the bound ketoamide inhibitor 13b
Starting Model(s) Initial Refinement Model(s) Type Source Accession Code Details experimental model PDB 7Z58
Crystallization Crystalization Experiments ID Method pH Temperature Details 1 VAPOR DIFFUSION, SITTING DROP 4 293 Mature cathepsin L at a concentration of 7 mg/ml was equilibrated against 27% w/v PEG 8000, 1 mM TCEP and 0.1 M sodium acetate at pH 4.0. Crystals, which grew at 293 K to final size after approximately 3 days, were transferred to a compound soaking solution containing 22% w/v PEG 8000, 1 mM TCEP and 0.1 M sodium acetate at pH 4.0 as well as 5% v/v DMSO and 10% v/v PEG 400.
Crystal Properties Matthews coefficient Solvent content 2.13 42.18
Crystal Data Unit Cell Length ( Å ) Angle ( ˚ ) a = 57.09 α = 105.449 b = 62.67 β = 93.667 c = 67.51 γ = 115.53
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 X 16M 2023-06-26 M SINGLE WAVELENGTH
Radiation Source ID # Source Type Wavelength List Synchrotron Site Beamline 1 SYNCHROTRON PETRA III, DESY BEAMLINE P11 1.033 PETRA III, DESY P11
Data Collection Overall ID # Resolution (High) Resolution (Low) Percent Possible (Observed) Rrim 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 1.8 49.7 91.5 0.157 0.999 22.66 11.3 67694 13.53
Highest Resolution Shell ID # Resolution (High) Resolution (Low) Percent Possible (All) Percent Possible (Observed) Rrim I (All) CC (Half) Mean I Over Sigma (Observed) Redundancy Number Unique Reflections (All) 1 1.8 1.86 0.526 0.96 7.3
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 1.8 49.7 1.99 67693 1476 91.63 0.158 0.157 0.1593 0.203 0.2039 17.7
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 23.4712 f_angle_d 1.1 f_chiral_restr 0.0729 f_bond_d 0.0117 f_plane_restr 0.0079
Non-Hydrogen Atoms Used in Refinement Non-Hydrogen Atoms Number Protein Atoms 6750 Nucleic Acid Atoms Solvent Atoms 566 Heterogen Atoms 355
Software Software Software Name Purpose PHENIX refinement XDS data reduction XSCALE data scaling PHENIX phasing