ELECTRON MICROSCOPY

Sample

Cryo-EM structure of mouse Toll-like receptor 3 ectodomain with C-domain of lncRNA Rmrp

Specimen Preperation
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 99902
Reported Resolution (Å) 3.64
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 RIGID BODY FIT
Refinement Target correlation coefficient
Overall B Value 97.5
Fitting Procedure ?
Details ?
Data Acquisition
Detector Type GATAN K2 QUANTUM (4k x 4k)
Electron Dose (electrons/Å2) 60
Imaging Experiment
Date of Experiment ?
Temprature (Kelvin)
Microscope Model FEI TITAN KRIOS
Minimum Defocus (nm) 1000
Maximum Defocus (nm) 2000
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 165000
Calibrated Magnification ?
Source FIELD EMISSION GUN
Acceleration Voltage (kV) 300
Imaging Details Preliminary grid screening was preformed manually.
Imaging Experiment
Task Software Package Version
IMAGE ACQUISITION SerialEM ?
CTF CORRECTION cryoSPARC 2.9.1
MODEL FITTING UCSF Chimera 1.14
MODEL REFINEMENT PHENIX 1.16
INITIAL EULER ASSIGNMENT cryoSPARC 2.9.1
FINAL EULER ASSIGNMENT cryoSPARC 2.9.1
CLASSIFICATION cryoSPARC 2.9.1
RECONSTRUCTION cryoSPARC 2.9.1
Image Processing
CTF Correction Type CTF Correction Details Number of Particles Selected Particle Selection Details
PHASE FLIPPING AND AMPLITUDE CORRECTION CTF correction was done by patch CTF correction.