ELECTRON MICROSCOPY

Sample

Conformation 1 of CMG-Csm3-Tof1-Mrc1-Ctf4 with a fork DNA

Specimen Preperation
Sample Aggregation State PARTICLE
Vitrification Instrument HOMEMADE PLUNGER
Cryogen Name ETHANE
Sample Vitrification Details Three microlitres of sample was applied on a grid and incubated for 15-30 s at 4 degC before manually blotting with filter paper for 10 s and plunge-freezing in liquid ethane.
3D Reconstruction
Reconstruction Method SINGLE PARTICLE
Number of Particles 35000
Reported Resolution (Å) 3.7
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 OTHER
Refinement Target FSC 0.5
Overall B Value 20
Fitting Procedure ?
Details ?
Data Acquisition
Detector Type GATAN K2 QUANTUM (4k x 4k)
Electron Dose (electrons/Å2) 37
Imaging Experiment
Date of Experiment ?
Temprature (Kelvin)
Microscope Model FEI TITAN KRIOS
Minimum Defocus (nm) 1400
Maximum Defocus (nm) 2600
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 130000
Calibrated Magnification ?
Source FIELD EMISSION GUN
Acceleration Voltage (kV) 300
Imaging Details ?
Imaging Experiment
Task Software Package Version
IMAGE ACQUISITION EPU 1.9.1
CTF CORRECTION Gctf 0.50
MODEL FITTING RELION 3.0.6
MODEL FITTING Coot 0.9-pre
MODEL FITTING UCSF Chimera 1.13
MODEL REFINEMENT PHENIX 1.16-3549
MODEL REFINEMENT REFMAC 5.8.0238
INITIAL EULER ASSIGNMENT RELION 3.0.6
FINAL EULER ASSIGNMENT RELION 3.0.6
CLASSIFICATION RELION 3.0.6
RECONSTRUCTION RELION 3.0.6
Image Processing
CTF Correction Type CTF Correction Details Number of Particles Selected Particle Selection Details
PHASE FLIPPING AND AMPLITUDE CORRECTION ?