9BTU | pdb_00009btu

Human SCNN1B-SCNN1G ENaC dimers


ELECTRON MICROSCOPY

Starting Model(s)

Initial Refinement Model(s)
TypeSourceAccession CodeDetails
experimental modelPDB 6WTH 

Refinement

RMS Deviations
KeyRefinement Restraint Deviation
f_dihedral_angle_d11.911
f_angle_d0.78
f_chiral_restr0.046
f_bond_d0.005
f_plane_restr0.005
Sample
Amiloride-sensitive sodium channel subunits BETA, and GAMMA in complex with 10D4 Fab
Sample Components
Human beta subunit isoform 1
Human gamma subunit isoform 1
Fab fragment from 10D4 IgG
Specimen Preparation
Sample Aggregation StatePARTICLE
Vitrification InstrumentFEI VITROBOT MARK IV
Cryogen NameETHANE
Sample Vitrification Details
3D Reconstruction
Reconstruction MethodSINGLE PARTICLE
Number of Particles248323
Reported Resolution (Å)3.68
Resolution MethodFSC 0.5 CUT-OFF
Other DetailsLocal Resolution with one of the dimers and the Fabs masked out
Refinement Type
Symmetry TypePOINT
Map-Model Fitting and Refinement
Id1 (6wth)
Refinement Space
Refinement ProtocolOTHER
Refinement Target
Overall B Value
Fitting Procedure
Details
Data Acquisition
Detector TypeFEI FALCON III (4k x 4k)
Electron Dose (electrons/Å**2)50
Imaging Experiment1
Date of Experiment
Temperature (Kelvin)
Microscope ModelFEI TITAN KRIOS
Minimum Defocus (nm)800
Maximum Defocus (nm)2500
Minimum Tilt Angle (degrees)
Maximum Tilt Angle (degrees)
Nominal CS2.7
Imaging ModeDIFFRACTION
Specimen Holder Model
Nominal Magnification
Calibrated Magnification
SourceFIELD EMISSION GUN
Acceleration Voltage (kV)300
Imaging Details
EM Software
TaskSoftware PackageVersion
PARTICLE SELECTIONcryoSPARC4.3.1
IMAGE ACQUISITIONSerialEMunk
CTF CORRECTIONcryoSPARC4.3.1
MODEL FITTINGPHENIX1.2
MODEL REFINEMENTISOLDE1.6
MODEL REFINEMENTPHENIX1.2
INITIAL EULER ASSIGNMENTcryoSPARC4.3.1
FINAL EULER ASSIGNMENTcryoSPARC4.3.1
CLASSIFICATIONcryoSPARC4.3.1
RECONSTRUCTIONcryoSPARC4.3.1
Image Processing
CTF Correction TypeCTF Correction DetailsNumber of Particles SelectedParticle Selection Details
PHASE FLIPPING AND AMPLITUDE CORRECTION1121564From blob picking in cryoSPARC with a box size of 440 with a maximum particle diameter of 250 and a minimum of 150. Minimum separation distance was 0.6 diameters