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MicroED structure of the C11 cysteine protease clostripain
Starting Model(s) Initial Refinement Model(s) Type Source Accession Code Details in silico model AlphaFold A0A4U9RR22
Crystal Data Unit Cell Length ( Å ) Angle ( ˚ ) a = 65.79 α = 90 b = 106.07 β = 90 c = 149.28 γ = 90
Symmetry Space Group P 2 21 21
Refinement Statistics Diffraction ID Structure Solution Method Cross Validation method Resolution (High) Resolution (Low) Number Reflections (Observed) Number Reflections (R-Free) Percent Reflections (Observed) R-Factor (Observed) R-Work (Depositor) R-Free (Depositor) Mean Isotropic B ELECTRON CRYSTALLOGRAPHY FREE R-VALUE 2.5 49.4 31966 1589 86.54 0.2396 0.2379 0.2726 24.69
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 13.4871 f_angle_d 0.5461 f_chiral_restr 0.0426 f_plane_restr 0.0041 f_bond_d 0.0024
Specimen Preparation Sample Aggregation State 3D ARRAY Vitrification Instrument LEICA EM GP Cryogen Name ETHANE Sample Vitrification Details
3D Reconstruction Reconstruction Method CRYSTALLOGRAPHY Number of Particles Reported Resolution (Å) 2.5 Resolution Method DIFFRACTION PATTERN/LAYERLINES Other Details Refinement Type Symmetry Type 3D CRYSTAL Space Group Name Length a 65.79 Length b 106.07 Length c 106.07 Angle Alpha 90 Angle Beta 90 Angle Gamma 90
Map-Model Fitting and Refinement Id 1 Refinement Space RECIPROCAL Refinement Protocol FLEXIBLE FIT Refinement Target Overall B Value 24.7 Fitting Procedure Details
Data Acquisition Detector Type FEI FALCON IV (4k x 4k) Electron Dose (electrons/Å**2) 0.04
Imaging Experiment 1 Date of Experiment Temperature (Kelvin) Microscope Model FEI TITAN KRIOS Minimum Defocus (nm) Maximum Defocus (nm) Minimum Tilt Angle (degrees) Maximum Tilt Angle (degrees) Nominal CS Imaging Mode DIFFRACTION Specimen Holder Model Nominal Magnification Calibrated Magnification Source FIELD EMISSION GUN Acceleration Voltage (kV) 300 Imaging Details
EM Software Task Software Package Version IMAGE ACQUISITION EPU MODEL FITTING PHENIX 1.21.1_5286 MODEL REFINEMENT PHENIX 1.21.1_5286 MOLECULAR REPLACEMENT PHENIX 1.21.1_5287 CRYSTALLOGRAPHY MERGING XSCALE Jun 30, 2023
Image Processing CTF Correction Type CTF Correction Details Number of Particles Selected Particle Selection Details NONE