7PAN

ELECTRON MICROSCOPY

Sample

Cryo-electron tomograms of untreated Mycoplasma pneumoniae cells

Specimen Preperation
Sample Aggregation State CELL
Vitrification Instrument HOMEMADE PLUNGER
Cryogen Name ETHANE-PROPANE
Sample Vitrification Details back-side blotting for 2-3 seconds before plunging using a manual plunger without an environmental chamber
3D Reconstruction
Reconstruction Method SUBTOMOGRAM AVERAGING
Number of Particles 1449
Reported Resolution (Å) 9.7
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 FLEXIBLE FIT
Refinement Target ?
Overall B Value ?
Fitting Procedure ?
Details ?
Data Acquisition
Detector Type GATAN K2 SUMMIT (4k x 4k)
Electron Dose (electrons/Å2) 3.2
Imaging Experiment
Date of Experiment ?
Temprature (Kelvin)
Microscope Model FEI TITAN KRIOS
Minimum Defocus (nm) 1500
Maximum Defocus (nm) 3750
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 81000
Calibrated Magnification ?
Source FIELD EMISSION GUN
Acceleration Voltage (kV) 300
Imaging Details ?
Imaging Experiment
Task Software Package Version
VOLUME SELECTION Warp 3.0.7 beta or 3.0.9
IMAGE ACQUISITION SerialEM ?
CTF CORRECTION RELION 3.0.8
MODEL FITTING PHENIX 1.18
FINAL EULER ASSIGNMENT RELION 3.0.8
CLASSIFICATION RELION 3.0.8
RECONSTRUCTION RELION 3.0.8
MODEL REFINEMENT PHENIX 1.18
Image Processing
CTF Correction Type CTF Correction Details Number of Particles Selected Particle Selection Details
PHASE FLIPPING AND AMPLITUDE CORRECTION ?