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Cryo-EM structure of DICER/26S-UG complex in dicing state
Starting Model(s) Initial Refinement Model(s) Type Source Accession Code Details experimental model PDB 7XW2
Refinement RMS Deviations Key Refinement Restraint Deviation f_dihedral_angle_d 13.079 f_angle_d 0.838 f_chiral_restr 0.042 f_plane_restr 0.008 f_bond_d 0.005
Sample Complex of DICER/26S-UG in dicing state
Specimen Preparation Sample Aggregation State PARTICLE Vitrification Instrument Cryogen Name ETHANE Sample Vitrification Details
3D Reconstruction Reconstruction Method SINGLE PARTICLE Number of Particles 641317 Reported Resolution (Å) 3.34 Resolution Method FSC 0.143 CUT-OFF Other Details Refinement Type Symmetry Type POINT
Map-Model Fitting and Refinement Id 1 (7XW2) Refinement Space Refinement Protocol OTHER Refinement Target Overall B Value Fitting Procedure Details
Data Acquisition Detector Type TFS FALCON 4i (4k x 4k) Electron Dose (electrons/Å**2) 50
Imaging Experiment 1 Date of Experiment Temperature (Kelvin) Microscope Model TFS KRIOS Minimum Defocus (nm) 1200 Maximum Defocus (nm) 2300 Minimum Tilt Angle (degrees) Maximum Tilt Angle (degrees) Nominal CS 2.7 Imaging Mode OTHER Specimen Holder Model Nominal Magnification 84000 Calibrated Magnification Source FIELD EMISSION GUN Acceleration Voltage (kV) 300 Imaging Details
EM Software Task Software Package Version PARTICLE SELECTION cryoSPARC 4.6.2 CTF CORRECTION cryoSPARC 4.6.2 MODEL FITTING UCSF ChimeraX 1.7 INITIAL EULER ASSIGNMENT cryoSPARC 4.6.2 FINAL EULER ASSIGNMENT cryoSPARC 4.6.2 RECONSTRUCTION cryoSPARC 4.6.2 MODEL REFINEMENT PHENIX 1.20.1_4487
Image Processing CTF Correction Type CTF Correction Details Number of Particles Selected Particle Selection Details PHASE FLIPPING AND AMPLITUDE CORRECTION