ELECTRON MICROSCOPY

Sample

Segment polarity protein dishevelled homolog DVL-2

Specimen Preperation
Sample Aggregation State HELICAL ARRAY
Vitrification Instrument LEICA EM GP
Cryogen Name ETHANE
Sample Vitrification Details The grid was blotted for 2.0 s using Whatman #1 filter paper (GE Healthcare).
3D Reconstruction
Reconstruction Method HELICAL
Number of Particles 110105
Reported Resolution (Å) 3.6
Resolution Method FSC 0.143 CUT-OFF
Other Details ?
Refinement Type
Symmetry Type HELICAL
Map-Model Fitting and Refinement
ID 1
Refinement Space REAL
Refinement Protocol RIGID BODY FIT
Refinement Target ?
Overall B Value ?
Fitting Procedure ?
Details The two mutations in the source (Y27W and C80S) were reverted to Trp and Ser, respectively, before fitting. Model refinement was carried out through alternating rounds of real-space refinement in PHENIX and manual building in Coot.
Data Acquisition
Detector Type GATAN K2 SUMMIT (4k x 4k)
Electron Dose (electrons/Å2) 98
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 FEI TITAN KRIOS AUTOGRID HOLDER
Nominal Magnification ?
Calibrated Magnification 29000
Source FIELD EMISSION GUN
Acceleration Voltage (kV) 300
Imaging Details ?
Imaging Experiment
Task Software Package Version
IMAGE ACQUISITION SerialEM ?
IMAGE ACQUISITION DigitalMicrograph ?
CTF CORRECTION CTFFIND 4.1
MODEL FITTING PHENIX 1.17.1-3660
INITIAL EULER ASSIGNMENT RELION 3.0.8
FINAL EULER ASSIGNMENT RELION 3.0.8
CLASSIFICATION RELION 3.0.8
RECONSTRUCTION RELION 3.0.8
MODEL REFINEMENT PHENIX 1.17.1-3360
MODEL REFINEMENT Coot 0.8.9.2 EL
Image Processing
CTF Correction Type CTF Correction Details Number of Particles Selected Particle Selection Details
PHASE FLIPPING AND AMPLITUDE CORRECTION ?