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Structure of AGO2 primary RISC (pri-RISC)
Starting Model(s) Initial Refinement Model(s) Type Source Accession Code Details in silico model AlphaFold
Sample Human Argonaute2 in complex with miR-20a duplex
Specimen Preparation Sample Aggregation State PARTICLE Vitrification Instrument FEI VITROBOT MARK IV Cryogen Name ETHANE Sample Vitrification Details
3D Reconstruction Reconstruction Method SINGLE PARTICLE Number of Particles 203008 Reported Resolution (Å) 3.79 Resolution Method FSC 0.143 CUT-OFF Other Details Refinement Type Symmetry Type POINT
Map-Model Fitting and Refinement Id 1 Refinement Space REAL Refinement Protocol OTHER Refinement Target Overall B Value Fitting Procedure Details
Data Acquisition Detector Type GATAN K3 (6k x 4k) Electron Dose (electrons/Å**2) 50
Imaging Experiment 1 Date of Experiment Temperature (Kelvin) Microscope Model TFS KRIOS Minimum Defocus (nm) 600 Maximum Defocus (nm) 1600 Minimum Tilt Angle (degrees) Maximum Tilt Angle (degrees) Nominal CS 0.01 Imaging Mode OTHER Specimen Holder Model Nominal Magnification Calibrated Magnification Source FIELD EMISSION GUN Acceleration Voltage (kV) 300 Imaging Details
EM Software Task Software Package Version PARTICLE SELECTION cryoSPARC v4 IMAGE ACQUISITION EPU CTF CORRECTION cryoSPARC v4 MODEL FITTING UCSF ChimeraX 1-6.1 MODEL FITTING Coot 0.9.8.91 MODEL REFINEMENT PHENIX 1.21.2_5419 MODEL REFINEMENT UCSF ChimeraX 1-6.1 RECONSTRUCTION cryoSPARC v4
Image Processing CTF Correction Type CTF Correction Details Number of Particles Selected Particle Selection Details NONE