ELECTRON MICROSCOPY

Sample

Affinity-purified 80S ribosome-nascent chain complex stalled with didemnin B and containing aminoacyl-tRNA and eEF1A.

Specimen Preperation
Sample Aggregation State PARTICLE
Vitrification Instrument FEI VITROBOT MARK III
Cryogen Name ETHANE
Sample Vitrification Details 3 ul aliquots were applied to the grid and incubated for 30 s, before blotting for 3s to remove excess solution.
3D Reconstruction
Reconstruction Method SINGLE PARTICLE
Number of Particles 40347
Reported Resolution (Å) 3.31
Resolution Method FSC 0.143 CUT-OFF
Other Details ?
Refinement Type
Symmetry Type POINT
Map-Model Fitting and Refinement
ID 1
Refinement Space RECIPROCAL
Refinement Protocol OTHER
Refinement Target FSCaverage
Overall B Value 64.8
Fitting Procedure ?
Details Restraints for didemnin B were derived from Phenix.elbow and Mogul.
Data Acquisition
Detector Type FEI FALCON II (4k x 4k)
Electron Dose (electrons/Å2) 40
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 2.7
Imaging Mode BRIGHT FIELD
Specimen Holder Model FEI TITAN KRIOS AUTOGRID HOLDER
Nominal Magnification 69000
Calibrated Magnification 134615
Source FIELD EMISSION GUN
Acceleration Voltage (kV) 300
Imaging Details ?
Imaging Experiment
Task Software Package Version
PARTICLE SELECTION EMAN 2
PARTICLE SELECTION RELION 1.4
IMAGE ACQUISITION EPU ?
CTF CORRECTION Gctf 0.5
MODEL FITTING UCSF Chimera 1.10
MODEL FITTING Coot 5.8
INITIAL EULER ASSIGNMENT RELION 1.4
FINAL EULER ASSIGNMENT RELION 1.4
CLASSIFICATION RELION 1.4
RECONSTRUCTION RELION 1.4
MODEL REFINEMENT REFMAC 5.8
Image Processing
CTF Correction Type CTF Correction Details Number of Particles Selected Particle Selection Details
PHASE FLIPPING AND AMPLITUDE CORRECTION ?