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Cryo-EM structure of the potassium-chloride cotransporter KCC4 in lipid nanodiscs
Sample KCC4 in lipid nanodiscs
Specimen Preparation Sample Aggregation State PARTICLE Vitrification Instrument FEI VITROBOT MARK IV Cryogen Name ETHANE Sample Vitrification Details 3uL, 1 blot force, 4s blot time, 1s wait time
3D Reconstruction Reconstruction Method SINGLE PARTICLE Number of Particles 110143 Reported Resolution (Å) 3.65 Resolution Method FSC 0.143 CUT-OFF Other Details Refinement Type Symmetry Type POINT Point Symmetry C1
Map-Model Fitting and Refinement Id 1 Refinement Space Refinement Protocol Refinement Target Overall B Value Fitting Procedure Details
Data Acquisition Detector Type GATAN K3 (6k x 4k) Electron Dose (electrons/Å**2) 0.9333
Imaging Experiment 1 Date of Experiment Temperature (Kelvin) Microscope Model FEI TALOS ARCTICA Minimum Defocus (nm) 700 Maximum Defocus (nm) 2500 Minimum Tilt Angle (degrees) Maximum Tilt Angle (degrees) Nominal CS 2.7 Imaging Mode BRIGHT FIELD Specimen Holder Model Nominal Magnification 36000 Calibrated Magnification Source FIELD EMISSION GUN Acceleration Voltage (kV) 200 Imaging Details
EM Software Task Software Package Version IMAGE ACQUISITION SerialEM CTF CORRECTION CTFFIND 4.1.13 MODEL FITTING Coot INITIAL EULER ASSIGNMENT cryoSPARC 2 FINAL EULER ASSIGNMENT RELION 3.0.7 CLASSIFICATION RELION 3.0.7 RECONSTRUCTION RELION 3.0.7 MODEL REFINEMENT PHENIX
Image Processing CTF Correction Type CTF Correction Details Number of Particles Selected Particle Selection Details PHASE FLIPPING AND AMPLITUDE CORRECTION 1826000