ELECTRON MICROSCOPY

Sample

Human Replication factor C (RFC) complex bound to the sliding clamp Proliferating cell nuclear antigen (PCNA)

Specimen Preperation
Sample Aggregation State PARTICLE
Vitrification Instrument ?
Cryogen Name ETHANE
Sample Vitrification Details ?
3D Reconstruction
Reconstruction Method SINGLE PARTICLE
Number of Particles 193934
Reported Resolution (Å) 3.4
Resolution Method FSC 0.143 CUT-OFF
Other Details Multi-body refinement was used to generate 2 reconstructions that were combined
Refinement Type
Symmetry Type POINT
Map-Model Fitting and Refinement
ID 1
Refinement Space REAL
Refinement Protocol OTHER
Refinement Target ?
Overall B Value ?
Fitting Procedure ?
Details Initial local fitting was peformed using UCSF Chimera, followed by manual model adjustment, then refinement in PHENIX.
Data Acquisition
Detector Type GATAN K3 (6k x 4k)
Electron Dose (electrons/Å2) 40.3
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 2.7
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
PARTICLE SELECTION cisTEM 1.0.0
IMAGE ACQUISITION SerialEM ?
MODEL FITTING UCSF Chimera ?
MODEL REFINEMENT PHENIX ?
INITIAL EULER ASSIGNMENT cisTEM ?
FINAL EULER ASSIGNMENT RELION 3.0.2
CLASSIFICATION RELION 3.0.2
RECONSTRUCTION RELION 3.0.2
Image Processing
CTF Correction Type CTF Correction Details Number of Particles Selected Particle Selection Details
PHASE FLIPPING AND AMPLITUDE CORRECTION ?