9SMK | pdb_00009smk

Human TRPM4 ion channel in MSP2N2 lipid nanodisc in a calcium-bound state


ELECTRON MICROSCOPY

Starting Model(s)

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

Refinement

RMS Deviations
KeyRefinement Restraint Deviation
f_dihedral_angle_d7.554
f_angle_d0.617
f_chiral_restr0.038
f_plane_restr0.005
f_bond_d0.003
Sample
HUMAN TRPM4 ION CHANNEL
Specimen Preparation
Sample Aggregation StatePARTICLE
Vitrification InstrumentFEI VITROBOT MARK IV
Cryogen NameETHANE
Sample Vitrification Details
3D Reconstruction
Reconstruction MethodSINGLE PARTICLE
Number of Particles103254
Reported Resolution (Å)3.8
Resolution MethodFSC 0.143 CUT-OFF
Other DetailsCombination of particles from the best two 3D classes
Refinement Type
Symmetry TypePOINT
Point SymmetryC4
Map-Model Fitting and Refinement
Id1
Refinement SpaceREAL
Refinement Protocol
Refinement Target
Overall B Value147
Fitting Procedure
Details
Data Acquisition
Detector TypeFEI FALCON IV (4k x 4k)
Electron Dose (electrons/Å**2)52
Imaging Experiment1
Date of Experiment
Temperature (Kelvin)
Microscope ModelTFS KRIOS
Minimum Defocus (nm)800
Maximum Defocus (nm)2500
Minimum Tilt Angle (degrees)
Maximum Tilt Angle (degrees)
Nominal CS
Imaging ModeBRIGHT FIELD
Specimen Holder ModelFEI TITAN KRIOS AUTOGRID HOLDER
Nominal Magnification
Calibrated Magnification
SourceFIELD EMISSION GUN
Acceleration Voltage (kV)300
Imaging Details
EM Software
TaskSoftware PackageVersion
PARTICLE SELECTIONRELION5.0
CTF CORRECTIONCTFFIND4.1
MODEL FITTINGPHENIX1.21.1-5286
MODEL FITTINGCoot0.9.8.94
INITIAL EULER ASSIGNMENTRELION5.0
FINAL EULER ASSIGNMENTRELION5.0
CLASSIFICATIONRELION5.0
RECONSTRUCTIONRELION5.0
MODEL REFINEMENTPHENIX1.21.1-5286
MODEL REFINEMENTCoot0.9.8.94
Image Processing
CTF Correction TypeCTF Correction DetailsNumber of Particles SelectedParticle Selection Details
PHASE FLIPPING AND AMPLITUDE CORRECTION