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CryoEM structure of AcrIIA2 in complex with CRISPR-Cas9
Starting Model(s) Initial Refinement Model(s) Type Source Accession Code Details experimental model PDB 4ZT0
Refinement RMS Deviations Key Refinement Restraint Deviation f_dihedral_angle_d 11.959 f_angle_d 1.088 f_chiral_restr 0.061 f_bond_d 0.01 f_plane_restr 0.007
Sample AcrIIA2 interacting with sgRNA-bound Streptococcus pyogenes Cas9 Sample Components sgRNA-bound Streptococcus pyogenes Cas9 AcrIIA2
Specimen Preparation Sample Aggregation State PARTICLE Vitrification Instrument FEI VITROBOT MARK II Cryogen Name ETHANE Sample Vitrification Details
3D Reconstruction Reconstruction Method SINGLE PARTICLE Number of Particles 263270 Reported Resolution (Å) 3.4 Resolution Method FSC 0.143 CUT-OFF Other Details Refinement Type Symmetry Type POINT
Map-Model Fitting and Refinement Id 1 (4ZT0) Refinement Space REAL Refinement Protocol OTHER Refinement Target Overall B Value Fitting Procedure Details
Data Acquisition Detector Type GATAN K2 SUMMIT (4k x 4k) Electron Dose (electrons/Å**2) 43.2
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 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 0.8.9 MODEL REFINEMENT PHENIX 1.12-2829
Image Processing CTF Correction Type CTF Correction Details Number of Particles Selected Particle Selection Details PHASE FLIPPING AND AMPLITUDE CORRECTION