6PV7

Human alpha3beta4 nicotinic acetylcholine receptor in complex with nicotine


ELECTRON MICROSCOPY
Sample
Human alpha3beta4 nicotinic receptor in complex with Fab fragments and bound to nicotine
Sample Components
Human alpha3beta4 nicotinic acetylcholine receptor
Neuronal acetylcholine receptor subunit alpha-3
Neuronal acetylcholine receptor subunit beta-4
IgG2b/kappa antibody
IgG2b heavy chain
Kappa Fab light chain
Specimen Preparation
Sample Aggregation StatePARTICLE
Vitrification InstrumentFEI VITROBOT MARK IV
Cryogen NameETHANE
Sample Vitrification Details4 second blot
3D Reconstruction
Reconstruction MethodSINGLE PARTICLE
Number of Particles112737
Reported Resolution (Å)3.34
Resolution MethodFSC 0.143 CUT-OFF
Other Details
Refinement Type
Symmetry TypePOINT
Point SymmetryC1
Map-Model Fitting and Refinement
Id1
Refinement SpaceREAL
Refinement ProtocolAB INITIO MODEL
Refinement Target
Overall B Value
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 Magnification
Calibrated Magnification46730
SourceFIELD EMISSION GUN
Acceleration Voltage (kV)300
Imaging Details
EM Software
TaskSoftware PackageVersion
PARTICLE SELECTIONRELION
IMAGE ACQUISITIONEPU
CTF CORRECTIONGctf
MODEL FITTINGCoot
INITIAL EULER ASSIGNMENTRELION
FINAL EULER ASSIGNMENTRELION
CLASSIFICATIONRELION
RECONSTRUCTIONRELION
MODEL REFINEMENTPHENIX
Image Processing
CTF Correction TypeCTF Correction DetailsNumber of Particles SelectedParticle Selection Details
PHASE FLIPPING AND AMPLITUDE CORRECTION705401