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Dimer complex of Human Plexin-A1 27-710 with aPlexinA1-19-43 Fab binding
Sample Components
Dimer of Human Plexin-A1 27-710
aPlexinA1-19-43 Fab
Specimen Preparation
Sample Aggregation State
PARTICLE
Vitrification Instrument
FEI VITROBOT MARK IV
Cryogen Name
ETHANE
Sample Vitrification Details
To prepare cryo-grids, 3 ul samples were applied to glow discharged Quantifoil Au grids (R2/2, 300 mesh), which were subsequently blotted with filter ...
To prepare cryo-grids, 3 ul samples were applied to glow discharged Quantifoil Au grids (R2/2, 300 mesh), which were subsequently blotted with filter paper (Ted Pella) for 3 seconds at 18oC and 100% humidity. The grids were immediately plunge frozen in liquid ethane using a FEI Vitrobot IV (ThermoFisher)
3D Reconstruction
Reconstruction Method
SINGLE PARTICLE
Number of Particles
253734
Reported Resolution (Å)
3.33
Resolution Method
FSC 0.143 CUT-OFF
Other Details
Refinement Type
Symmetry Type
POINT
Map-Model Fitting and Refinement
Id
1 (5L59)
Refinement Space
REAL
Refinement Protocol
AB INITIO MODEL
Refinement Target
Overall B Value
Fitting Procedure
Details
Initial local fitting was done using Chimera X, followed by manual fitting using Coot. Finally it was refined using Phenix real space refinement
Data Acquisition
Detector Type
FEI FALCON III (4k x 4k)
Electron Dose (electrons/Å**2)
50
Imaging Experiment
1
Date of Experiment
Temperature (Kelvin)
Microscope Model
FEI TITAN KRIOS
Minimum Defocus (nm)
1200
Maximum Defocus (nm)
2500
Minimum Tilt Angle (degrees)
Maximum Tilt Angle (degrees)
Nominal CS
Imaging Mode
OTHER
Specimen Holder Model
Nominal Magnification
Calibrated Magnification
Source
OTHER
Acceleration Voltage (kV)
300
Imaging Details
EM Software
Task
Software Package
Version
PARTICLE SELECTION
cryoSPARC
4.1.2
CTF CORRECTION
cryoSPARC
4.1.2
MODEL FITTING
UCSF ChimeraX
MODEL FITTING
Coot
0.9.8.7
INITIAL EULER ASSIGNMENT
cryoSPARC
4.1.2
FINAL EULER ASSIGNMENT
cryoSPARC
4.1.2
CLASSIFICATION
cryoSPARC
4.1.2
RECONSTRUCTION
cryoSPARC
4.1.2
MODEL REFINEMENT
PHENIX
1.21
Image Processing
CTF Correction Type
CTF Correction Details
Number of Particles Selected
Particle Selection Details
PHASE FLIPPING AND AMPLITUDE CORRECTION
3741859
After Inspect Particle Picks (NCC score > 0.620, 10421 < local power score < 17132) and Extract From Micrographs (Extraction box size 320 pix), a total of 3,741,859 particles were extracted