5A6G

Cryo-EM structure of the Slo2.2 Na-activated K channel


ELECTRON MICROSCOPY
Sample
SLO2.2
Specimen Preparation
Sample Aggregation StatePARTICLE
Vitrification InstrumentFEI VITROBOT MARK IV
Cryogen NameETHANE
Sample Vitrification DetailsVITRIFICATION 1 -- CRYOGEN- ETHANE, HUMIDITY- 84, TEMPERATURE- 120, INSTRUMENT- FEI VITROBOT MARK IV, METHOD- 4 SECOND BLOT PRIOR TO PLUNGING,
3D Reconstruction
Reconstruction MethodSINGLE PARTICLE
Number of Particles11303
Reported Resolution (Å)5.2
Resolution Method
Other DetailsSUBMISSION BASED ON EXPERIMENTAL DATA FROM EMDB EMD-3064. (DEPOSITION ID: 13535).
Refinement Type
Symmetry TypePOINT
Point SymmetryC4
Map-Model Fitting and Refinement
Id1
Refinement SpaceRECIPROCAL
Refinement ProtocolOTHER
Refinement TargetR-factor
Overall B Value
Fitting Procedure
DetailsREFINEMENT PROTOCOL--EM
Data Acquisition
Detector TypeGATAN K2 (4k x 4k)
Electron Dose (electrons/Å**2)40
Imaging Experiment1
Date of Experiment2014-07-07
Temperature (Kelvin)
Microscope ModelFEI TITAN KRIOS
Minimum Defocus (nm)1500
Maximum Defocus (nm)4500
Minimum Tilt Angle (degrees)
Maximum Tilt Angle (degrees)
Nominal CS2
Imaging ModeBRIGHT FIELD
Specimen Holder Model
Nominal Magnification105000
Calibrated Magnification105000
SourceFIELD EMISSION GUN
Acceleration Voltage (kV)300
Imaging Details
Image Processing
CTF Correction TypeCTF Correction DetailsNumber of Particles SelectedParticle Selection Details
EACH IMAGE