7K5C

ELECTRON MICROSCOPY

Sample

Multisubunit T7 DNA ejectosome periplasmic tunnel with 6x copies of Gp15 and 6x copies of Gp16

Specimen Preperation
Sample Aggregation State PARTICLE
Vitrification Instrument FEI VITROBOT MARK IV
Cryogen Name ETHANE
Sample Vitrification Details blot for 6 seconds before plunging
3D Reconstruction
Reconstruction Method SINGLE PARTICLE
Number of Particles 208024
Reported Resolution (Å) 2.7
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 AB INITIO MODEL
Refinement Target 0.92
Overall B Value 45.1
Fitting Procedure ?
Details ?
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) 1000
Maximum Defocus (nm) 2500
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
PARTICLE SELECTION RELION 3.0-b
IMAGE ACQUISITION Latitude S
CTF CORRECTION RELION 3.0-b
MODEL FITTING UCSF Chimera 1.14
INITIAL EULER ASSIGNMENT RELION 3.0-b
FINAL EULER ASSIGNMENT RELION 3.0-b
CLASSIFICATION RELION 3.0-b
RECONSTRUCTION RELION 3.0-b
MODEL REFINEMENT PHENIX 1.17
Image Processing
CTF Correction Type CTF Correction Details Number of Particles Selected Particle Selection Details
PHASE FLIPPING AND AMPLITUDE CORRECTION ?