ELECTRON MICROSCOPY

Sample

Actin-formin-profilin ring complex: the phalloidin-stabilized F-actin barbed end bound by dimeric-Cdc12 and profilin-S71M.

Specimen Preperation
Sample Aggregation State PARTICLE
Vitrification Instrument FEI VITROBOT MARK IV
Cryogen Name ETHANE-PROPANE
Sample Vitrification Details 3 seconds, force 0.
3D Reconstruction
Reconstruction Method SINGLE PARTICLE
Number of Particles 29092
Reported Resolution (Å) 6.25
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 FLEXIBLE FIT
Refinement Target ?
Overall B Value ?
Fitting Procedure ?
Details Refinement performed using phenix real-space refine
Data Acquisition
Detector Type GATAN K3 BIOQUANTUM (6k x 4k)
Electron Dose (electrons/Å2) 63.3
Imaging Experiment
Date of Experiment ?
Temprature (Kelvin)
Microscope Model FEI TITAN KRIOS
Minimum Defocus (nm) 1200
Maximum Defocus (nm) 3000
Minimum Tilt Angle (degrees) ?
Maximum Tilt Angle (degrees) ?
Nominal CS 0.01
Imaging Mode BRIGHT FIELD
Specimen Holder Model FEI TITAN KRIOS AUTOGRID HOLDER
Nominal Magnification 81000
Calibrated Magnification ?
Source FIELD EMISSION GUN
Acceleration Voltage (kV) 300
Imaging Details 300 kV Titan Krios G2 microscope (Thermo Fisher Scientific) with an in-column Cs-corrector.
Imaging Experiment
Task Software Package Version
PARTICLE SELECTION crYOLO 1.5.8
IMAGE ACQUISITION EPU ?
CTF CORRECTION CTFFIND 4.13
MODEL FITTING UCSF ChimeraX 1.5
MODEL FITTING Coot 0.9.8.1
INITIAL EULER ASSIGNMENT cryoSPARC v4.2.1
FINAL EULER ASSIGNMENT cryoSPARC v4.2.1
CLASSIFICATION cryoSPARC v4.2.1
RECONSTRUCTION cryoSPARC v4.2.1
MODEL REFINEMENT Coot 0.9.8.1
MODEL REFINEMENT PHENIX 1.21rc1_5015
Image Processing
CTF Correction Type CTF Correction Details Number of Particles Selected Particle Selection Details
PHASE FLIPPING AND AMPLITUDE CORRECTION ?