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Munc13-1 C1-C2B-MUN-C2C Upright conformation spanning two lipid bilayers
ELECTRON MICROSCOPY
Sample
2D crystal of Munc13-1 C1-C2B-MUN-C2C domains between two lipid bilayers.
Specimen Preparation
Sample Aggregation State
2D ARRAY
Vitrification Instrument
FEI VITROBOT MARK IV
Cryogen Name
ETHANE
Sample Vitrification Details
blot for 5 sec before plunging, blot force -1
3D Reconstruction
Reconstruction Method
SUBTOMOGRAM AVERAGING
Number of Particles
126711
Reported Resolution (Å)
10
Resolution Method
OTHER
Other Details
Combined map of best classes from two independent 3D classifications in RELION 3.1 of selected regions without angular searches using C3 symmetry expa ...
Combined map of best classes from two independent 3D classifications in RELION 3.1 of selected regions without angular searches using C3 symmetry expanded dataset (126711 subtomograms) and separation into 8 classes.
Refinement Type
Symmetry Type
POINT
Point Symmetry
C1
Map-Model Fitting and Refinement
Id
1
Refinement Space
Refinement Protocol
FLEXIBLE FIT
Refinement Target
Overall B Value
Fitting Procedure
Details
Model for fitting was generated by AlphaFold using the construct's amino acid sequence. Flexible fitting into 3D map densities was performed using ISO ...
Model for fitting was generated by AlphaFold using the construct's amino acid sequence. Flexible fitting into 3D map densities was performed using ISOLDE tool in ChimeraX.
Data Acquisition
Detector Type
GATAN K3 (6k x 4k)
Electron Dose (electrons/Å**2)
3.1
Imaging Experiment
1
Date of Experiment
Temperature (Kelvin)
Microscope Model
FEI TITAN KRIOS
Minimum Defocus (nm)
3500
Maximum Defocus (nm)
5000
Minimum Tilt Angle (degrees)
Maximum Tilt Angle (degrees)
Nominal CS
Imaging Mode
BRIGHT FIELD
Specimen Holder Model
Nominal Magnification
Calibrated Magnification
Source
FIELD EMISSION GUN
Acceleration Voltage (kV)
300
Imaging Details
EM Software
Task
Software Package
Version
IMAGE ACQUISITION
SerialEM
MODEL FITTING
ISOLDE
1.2.0
MODEL FITTING
UCSF ChimeraX
1.2
MODEL FITTING
UCSF Chimera
1.16
FINAL EULER ASSIGNMENT
RELION
3.1
RECONSTRUCTION
RELION
3.1
Image Processing
CTF Correction Type
CTF Correction Details
Number of Particles Selected
Particle Selection Details
PHASE FLIPPING AND AMPLITUDE CORRECTION
CTF correction was performed during 3D reconstruction in RELION 3.1