7V2O

ELECTRON MICROSCOPY

Sample

30S ribosomal with bound KsgA, a RNA methyltransferase

Specimen Preperation
Sample Aggregation State PARTICLE
Vitrification Instrument FEI VITROBOT MARK IV
Cryogen Name ETHANE
Sample Vitrification Details After application of the complex, 15 seconds wait time was given before blotting.
3D Reconstruction
Reconstruction Method SINGLE PARTICLE
Number of Particles 64307
Reported Resolution (Å) 3.5
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 ?
Overall B Value 109.3
Fitting Procedure ?
Details Phenix was used in real space for initial refinement. The final refinements was performed with REFMAC within ccpem
Data Acquisition
Detector Type FEI FALCON III (4k x 4k)
Electron Dose (electrons/Å2) 43.0
Imaging Experiment
Date of Experiment ?
Temprature (Kelvin)
Microscope Model FEI TITAN KRIOS
Minimum Defocus (nm) 1800
Maximum Defocus (nm) 3500
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 59000
Calibrated Magnification 101449
Source FIELD EMISSION GUN
Acceleration Voltage (kV) 300
Imaging Details ?
Imaging Experiment
Task Software Package Version
PARTICLE SELECTION Gautomatch ?
IMAGE ACQUISITION EPU ?
CTF CORRECTION Gctf 1.06
CTF CORRECTION RELION 3.1
MODEL FITTING Coot 0.9.5
MODEL FITTING UCSF Chimera 1.15
CLASSIFICATION RELION 3.1
RECONSTRUCTION RELION 3.1
MODEL REFINEMENT PHENIX 1.19.2-4158
MODEL REFINEMENT REFMAC 5.8.0267
Image Processing
CTF Correction Type CTF Correction Details Number of Particles Selected Particle Selection Details
PHASE FLIPPING AND AMPLITUDE CORRECTION ?