6M04

Structure of the human homo-hexameric LRRC8D channel at 4.36 Angstroms


ELECTRON MICROSCOPY

Refinement

RMS Deviations
KeyRefinement Restraint Deviation
f_dihedral_angle_d9.269
f_angle_d1.256
f_chiral_restr0.065
f_plane_restr0.008
f_bond_d0.006
Sample
Hexameric channel of LRC8D_HUMAN
Specimen Preparation
Sample Aggregation StatePARTICLE
Vitrification InstrumentFEI VITROBOT MARK IV
Cryogen NameETHANE
Sample Vitrification DetailsBlotted for 4 seconds before plunging.
3D Reconstruction
Reconstruction MethodSINGLE PARTICLE
Number of Particles247154
Reported Resolution (Å)4.36
Resolution MethodFSC 0.143 CUT-OFF
Other Details
Refinement Type
Symmetry TypePOINT
Point SymmetryC2
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)50
Imaging Experiment1
Date of Experiment
Temperature (Kelvin)
Microscope ModelFEI TALOS ARCTICA
Minimum Defocus (nm)500
Maximum Defocus (nm)2500
Minimum Tilt Angle (degrees)
Maximum Tilt Angle (degrees)
Nominal CS2.7
Imaging ModeBRIGHT FIELD
Specimen Holder ModelOTHER
Nominal Magnification23500
Calibrated Magnification
SourceFIELD EMISSION GUN
Acceleration Voltage (kV)200
Imaging DetailsSpecimen holder is FEI Talos Arctica autogrid holder.
EM Software
TaskSoftware PackageVersion
IMAGE ACQUISITIONSerialEM
CTF CORRECTIONCTFFIND4.1
MODEL FITTINGCoot
MODEL REFINEMENTPHENIX
FINAL EULER ASSIGNMENTRELION2.1
CLASSIFICATIONRELION2.1
RECONSTRUCTIONRELION2.1
Image Processing
CTF Correction TypeCTF Correction DetailsNumber of Particles SelectedParticle Selection Details
PHASE FLIPPING AND AMPLITUDE CORRECTION