ELECTRON MICROSCOPY

Sample

Anti-CRISPR associated (Aca) protein, Aca2 bound to its 5'UTR RNA (IR2 and IR-RBS)

Specimen Preperation
Sample Aggregation State PARTICLE
Vitrification Instrument FEI VITROBOT MARK IV
Cryogen Name ETHANE
Sample Vitrification Details ?
3D Reconstruction
Reconstruction Method SINGLE PARTICLE
Number of Particles 301832
Reported Resolution (Å) 2.61
Resolution Method FSC 0.143 CUT-OFF
Other Details BLUSH regularisation used during refinement
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 K3 BIOQUANTUM (6k x 4k)
Electron Dose (electrons/Å2) 72.2
Imaging Experiment
Date of Experiment ?
Temprature (Kelvin)
Microscope Model FEI TITAN KRIOS
Minimum Defocus (nm) 800
Maximum Defocus (nm) 1500
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 165000
Calibrated Magnification ?
Source FIELD EMISSION GUN
Acceleration Voltage (kV) 300
Imaging Details ?
Imaging Experiment
Task Software Package Version
PARTICLE SELECTION Topaz ?
IMAGE ACQUISITION EPU ?
CTF CORRECTION CTFFIND 4.1
MODEL FITTING ISOLDE ?
MODEL FITTING Coot ?
MODEL REFINEMENT PHENIX ?
FINAL EULER ASSIGNMENT RELION 4.0
CLASSIFICATION RELION 5.0
RECONSTRUCTION RELION 5.0
Image Processing
CTF Correction Type CTF Correction Details Number of Particles Selected Particle Selection Details
PHASE FLIPPING AND AMPLITUDE CORRECTION ?