ELECTRON MICROSCOPY

Sample

human ribosome-TMCO1 translocon

Specimen Preperation
Sample Aggregation State PARTICLE
Vitrification Instrument FEI VITROBOT MARK IV
Cryogen Name ETHANE
Sample Vitrification Details Two filter papers were added to each arm, 2.5 microliters of sample were added to the grids, and 0.5 seconds of drain time was allowed before vitrification.
3D Reconstruction
Reconstruction Method SINGLE PARTICLE
Number of Particles 82684
Reported Resolution (Å) 3.84
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 ?
Refinement Target ?
Overall B Value ?
Fitting Procedure ?
Details Starting models: 60S ribosomal subunit, tRNAs and nascent chain from 6om0. Sec61 heterotrimer from 6fti. Nicalin, TMEM147 are iTasser homology models based on 5a63. TMCO1 and CCDC47 are co-evolution-based models from RaptorX-Contact.
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) ?
Maximum Defocus (nm) ?
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
IMAGE ACQUISITION Latitude ?
CTF CORRECTION Gctf 0.5
MODEL FITTING UCSF Chimera 1.13.1
MODEL FITTING Coot 0.9-pre
MODEL REFINEMENT PHENIX 1.18rc1-3777
INITIAL EULER ASSIGNMENT RELION 3.1
FINAL EULER ASSIGNMENT RELION 3.1
CLASSIFICATION RELION 3.1
RECONSTRUCTION RELION 3.1
Image Processing
CTF Correction Type CTF Correction Details Number of Particles Selected Particle Selection Details
PHASE FLIPPING AND AMPLITUDE CORRECTION ?