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CryoEM structure of MDA5-dsRNA filament in complex with ADP with 92-degree helical twist
Starting Model(s) Initial Refinement Model(s) Type Source Accession Code Details experimental model PDB 6G1X
Refinement RMS Deviations Key Refinement Restraint Deviation f_dihedral_angle_d 10.9134 f_angle_d 0.8546 f_chiral_restr 0.1097 f_bond_d 0.0105 f_plane_restr 0.0044
Sample MDA5-dsRNA filament in complex with ADP Sample Components RNA INTERFERON-INDUCED HELICASE C DOMAIN-CONTAINING PROTEIN
Specimen Preparation Sample Aggregation State FILAMENT Vitrification Instrument FEI VITROBOT MARK IV Cryogen Name ETHANE-PROPANE Sample Vitrification Details
3D Reconstruction Reconstruction Method HELICAL Number of Particles 64992 Reported Resolution (Å) 3.4 Resolution Method FSC 0.143 CUT-OFF Other Details Refinement Type Symmetry Type HELICAL Axial Symmetry C1 Axial Rise 44.62 Angular Rotation 91.75
Map-Model Fitting and Refinement Id 1 (6G1X) Refinement Space REAL Refinement Protocol OTHER Refinement Target Overall B Value 110 Fitting Procedure Details
Data Acquisition Detector Type GATAN K2 SUMMIT (4k x 4k) Electron Dose (electrons/Å**2) 44.5
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 2.7 Imaging Mode BRIGHT FIELD Specimen Holder Model FEI TITAN KRIOS AUTOGRID HOLDER 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 UCSF Chimera INITIAL EULER ASSIGNMENT RELION 3.1 FINAL EULER ASSIGNMENT RELION 3.1 RECONSTRUCTION RELION 3.1 MODEL REFINEMENT PHENIX 1.18.2
Image Processing CTF Correction Type CTF Correction Details Number of Particles Selected Particle Selection Details PHASE FLIPPING AND AMPLITUDE CORRECTION 1063529