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Cryo-EM structure of CRISPR-associated cA4 bound Cat1 Pentagonal filament assembly in the presence of NAD analog BAD
Refinement RMS Deviations Key Refinement Restraint Deviation f_dihedral_angle_d 8.54 f_angle_d 0.744 f_chiral_restr 0.044 f_plane_restr 0.007 f_bond_d 0.004
Sample Antiviral protein Cat1 - Cyclic Tetra-Adenylate Complex
NAD analog BAD was added to the sample
Specimen Preparation Sample Aggregation State FILAMENT Vitrification Instrument FEI VITROBOT MARK IV Cryogen Name ETHANE Sample Vitrification Details liquid-nitrogen-cooled liquid ethane was used as the cryogen.
3D Reconstruction Reconstruction Method SINGLE PARTICLE Number of Particles 87458 Reported Resolution (Å) 3.3 Resolution Method FSC 0.143 CUT-OFF Other Details Refinement Type Symmetry Type POINT
Map-Model Fitting and Refinement Id 1 Refinement Space Refinement Protocol Refinement Target Overall B Value Fitting Procedure Details
Data Acquisition Detector Type FEI FALCON IV (4k x 4k) Electron Dose (electrons/Å**2) 59.33
Imaging Experiment 1 Date of Experiment Temperature (Kelvin) Microscope Model TFS KRIOS Minimum Defocus (nm) 800 Maximum Defocus (nm) 2300 Minimum Tilt Angle (degrees) Maximum Tilt Angle (degrees) Nominal CS 2.7 Imaging Mode BRIGHT FIELD Specimen Holder Model Nominal Magnification Calibrated Magnification Source FIELD EMISSION GUN Acceleration Voltage (kV) 300 Imaging Details
EM Software Task Software Package Version MODEL FITTING Coot MODEL REFINEMENT PHENIX 1.20.1_4487:
Image Processing CTF Correction Type CTF Correction Details Number of Particles Selected Particle Selection Details NONE