ELECTRON MICROSCOPY

Sample

The Cryo-EM structure of tRNA methyltransferase FTSJ1-THADA with substrate tRNA and S-adenosyl homocysteine (SAH)

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 1854516
Reported Resolution (Å) 2.66
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 FLEXIBLE FIT
Refinement Target ?
Overall B Value ?
Fitting Procedure ?
Details alphafold prediction was used as initial model of FTSJ1-THADA
Data Acquisition
Detector Type GATAN K3 (6k x 4k)
Electron Dose (electrons/Å2) 50
Imaging Experiment
Date of Experiment ?
Temprature (Kelvin)
Microscope Model FEI TITAN KRIOS
Minimum Defocus (nm) 500
Maximum Defocus (nm) 2500
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 ?
Imaging Experiment
Task Software Package Version
PARTICLE SELECTION crYOLO 1.8.2
CTF CORRECTION RELION 3.1.3
MODEL FITTING UCSF Chimera 1.14
MODEL FITTING Coot 0.9.5
MODEL REFINEMENT PHENIX 1.18
MODEL REFINEMENT Coot 0.9.5
INITIAL EULER ASSIGNMENT RELION 3.1.3
FINAL EULER ASSIGNMENT RELION 3.1.3
CLASSIFICATION RELION 3.1.3
RECONSTRUCTION RELION 3.1.3
Image Processing
CTF Correction Type CTF Correction Details Number of Particles Selected Particle Selection Details
PHASE FLIPPING AND AMPLITUDE CORRECTION ?