6PCV

Single Particle Reconstruction of Phosphatidylinositol (3,4,5) trisphosphate-dependent Rac exchanger 1 bound to G protein beta gamma subunits


ELECTRON MICROSCOPY

Starting Model(s)

Initial Refinement Model(s)
TypeSourceAccession CodeDetails
experimental modelPDB 3V5W 
experimental modelPDB 3QIK 

Refinement

RMS Deviations
KeyRefinement Restraint Deviation
f_dihedral_angle_d8.9907
f_angle_d0.9669
f_chiral_restr0.0592
f_plane_restr0.0067
f_bond_d0.0058
Sample
P-Rex1 bound to G protein beta gamma subunits
Sample Components
Phosphatidylinositol (3,4,5) trisphosphate-dependent Rac exchanger 1
G protein beta-1 subunit
G protein gamma-2 subunit
Specimen Preparation
Sample Aggregation StatePARTICLE
Vitrification InstrumentFEI VITROBOT MARK IV
Cryogen NameETHANE
Sample Vitrification Details
3D Reconstruction
Reconstruction MethodSINGLE PARTICLE
Number of Particles205599
Reported Resolution (Å)3.2
Resolution MethodFSC 0.143 CUT-OFF
Other Details
Refinement Type
Symmetry TypePOINT
Point SymmetryC1
Map-Model Fitting and Refinement
Id1 (3V5W, 3V5W, 3QIK)
Refinement SpaceREAL
Refinement ProtocolAB INITIO MODEL
Refinement Target
Overall B Value83
Fitting Procedure
Details
Data Acquisition
Detector TypeGATAN K2 SUMMIT (4k x 4k)
Electron Dose (electrons/Å**2)47
Imaging Experiment1
Date of Experiment
Temperature (Kelvin)
Microscope ModelFEI TITAN KRIOS
Minimum Defocus (nm)
Maximum Defocus (nm)
Minimum Tilt Angle (degrees)
Maximum Tilt Angle (degrees)
Nominal CS2.7
Imaging ModeBRIGHT FIELD
Specimen Holder ModelFEI TITAN KRIOS AUTOGRID HOLDER
Nominal Magnification29000
Calibrated Magnification
SourceFIELD EMISSION GUN
Acceleration Voltage (kV)300
Imaging Details
EM Software
TaskSoftware PackageVersion
IMAGE ACQUISITIONLeginon3.2
CTF CORRECTIONWarp1.0.6
MODEL FITTINGPHENIX1.14-3260
MODEL REFINEMENTPHENIX1.14-3260
INITIAL EULER ASSIGNMENTcryoSPARCv0.65
FINAL EULER ASSIGNMENTcryoSPARCv0.65
CLASSIFICATIONcryoSPARCv0.65
RECONSTRUCTIONcryoSPARCv0.65
Image Processing
CTF Correction TypeCTF Correction DetailsNumber of Particles SelectedParticle Selection Details
PHASE FLIPPING AND AMPLITUDE CORRECTION905464600,588 particles (untilted) and 304,876 particles (30 degree tilted)