6R7X

CryoEM structure of calcium-bound human TMEM16K / Anoctamin 10 in detergent (2mM Ca2+, closed form)


ELECTRON MICROSCOPY

Starting Model(s)

Initial Refinement Model(s)
TypeSourceAccession CodeDetails
experimental modelPDB 5OC9 
Sample
Anoctamin 10
Specimen Preparation
Sample Aggregation StatePARTICLE
Vitrification InstrumentFEI VITROBOT MARK IV
Cryogen NameETHANE
Sample Vitrification Detailsblot for 3.5sec prior to plunging
3D Reconstruction
Reconstruction MethodSINGLE PARTICLE
Number of Particles70940
Reported Resolution (Å)3.47
Resolution MethodFSC 0.143 CUT-OFF
Other Details
Refinement Type
Symmetry TypePOINT
Point SymmetryC2
Map-Model Fitting and Refinement
Id1 (5OC9)
Refinement SpaceREAL
Refinement ProtocolAB INITIO MODEL
Refinement TargetCorrelation coef
Overall B Value176
Fitting Procedure
Detailsphenix.real_space_refine with NCS contraints, rotamer, cbeta and ramachandran restraints using postprocessed RELION3 map
Data Acquisition
Detector TypeGATAN K2 SUMMIT (4k x 4k)
Electron Dose (electrons/Å**2)50.9
Imaging Experiment1
Date of Experiment
Temperature (Kelvin)
Microscope ModelFEI TITAN KRIOS
Minimum Defocus (nm)1250
Maximum Defocus (nm)3000
Minimum Tilt Angle (degrees)
Maximum Tilt Angle (degrees)
Nominal CS2.7
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 SELECTIONGautomatch0.53
IMAGE ACQUISITIONEPU
CTF CORRECTIONCTFFIND4.1.5
MODEL FITTINGCoot
INITIAL EULER ASSIGNMENTRELION3
FINAL EULER ASSIGNMENTRELION3
CLASSIFICATIONRELION3
RECONSTRUCTIONRELION3
MODEL REFINEMENTPHENIX1.14
Image Processing
CTF Correction TypeCTF Correction DetailsNumber of Particles SelectedParticle Selection Details
PHASE FLIPPING AND AMPLITUDE CORRECTION300992Particles count after a single round of 2D classification