7KX9

ELECTRON MICROSCOPY

Sample

EfPiwi-piRNA-target complex

Specimen Preperation
Sample Aggregation State PARTICLE
Vitrification Instrument HOMEMADE PLUNGER
Cryogen Name ETHANE
Sample Vitrification Details Freezing was carried out in a cold room at 4 degree C and relative humidity between 95%-98%. 3.5 uL sample was applied to plasma cleaned grid and manually blotted with Whatman 1 filter paper for 5-7 sec before plunge freezing in liquid ethane at -179 degree C.
3D Reconstruction
Reconstruction Method SINGLE PARTICLE
Number of Particles 118493
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 ?
Refinement Protocol ?
Refinement Target ?
Overall B Value ?
Fitting Procedure ?
Details ?
Data Acquisition
Detector Type GATAN K2 SUMMIT (4k x 4k)
Electron Dose (electrons/Å2) 47.33
Imaging Experiment
Date of Experiment ?
Temprature (Kelvin)
Microscope Model FEI TALOS ARCTICA
Minimum Defocus (nm) 1000
Maximum Defocus (nm) 1600
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 36000
Calibrated Magnification 43478
Source FIELD EMISSION GUN
Acceleration Voltage (kV) 200
Imaging Details ?
Imaging Experiment
Task Software Package Version
PARTICLE SELECTION RELION 2
IMAGE ACQUISITION Leginon ?
CTF CORRECTION CTFFIND 4
INITIAL EULER ASSIGNMENT RELION 2
FINAL EULER ASSIGNMENT RELION 2
RECONSTRUCTION RELION 2.0
Image Processing
CTF Correction Type CTF Correction Details Number of Particles Selected Particle Selection Details
PHASE FLIPPING AND AMPLITUDE CORRECTION ?