ELECTRON MICROSCOPY

Sample

human Nuclear Exosome Targeting (NEXT) complex bound to RNA (substrate 2)

Specimen Preperation
Sample Aggregation State PARTICLE
Vitrification Instrument FEI VITROBOT MARK IV
Cryogen Name ETHANE
Sample Vitrification Details 30 s wait time, blot for 2.5 s before plunging
3D Reconstruction
Reconstruction Method SINGLE PARTICLE
Number of Particles 252638
Reported Resolution (Å) 3.62
Resolution Method FSC 0.143 CUT-OFF
Other Details A total of 252,638 gave rise to an overall map at 3.62 Angstrom resolution (FSC 0.143 cut off). A composite reconstruction (deposited main map) was generated by combining the overall map with focused refinement maps of MTR4 core (3.5 Angstrom FSC=0.143), MTR4 core-ZCCHC8 PSP-RBM7-RNA (3.42 Angstrom, FSC=0.143), RBM7-RNA (3.94 Angstrom, FSC=0.143), MTR4-ZCCHC8 HD/KID (3.62 Angstrom, FSC=0.143), and MTR4 KOW-ZCCHC8 HD/KID (3.34 Angstrom, FSC=0.143) regions.
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) 77.5
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 ?
Imaging Mode BRIGHT FIELD
Specimen Holder Model ?
Nominal Magnification ?
Calibrated Magnification ?
Source FIELD EMISSION GUN
Acceleration Voltage (kV) 300
Imaging Details ?
Imaging Experiment
Task Software Package Version
IMAGE ACQUISITION Leginon ?
IMAGE ACQUISITION SerialEM ?
CTF CORRECTION Gctf ?
RECONSTRUCTION RELION ?
Image Processing
CTF Correction Type CTF Correction Details Number of Particles Selected Particle Selection Details
PHASE FLIPPING AND AMPLITUDE CORRECTION ?