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Cryo-EM structure of the inward rectifying potassium channel 7.1 (Kir7.1) in complex with PIP2
Sample Tetrameric assembly of human inward rectifying potassium channel 7.1
Specimen Preparation Sample Aggregation State PARTICLE Vitrification Instrument FEI VITROBOT MARK IV Cryogen Name ETHANE Sample Vitrification Details
3D Reconstruction Reconstruction Method SINGLE PARTICLE Number of Particles 556510 Reported Resolution (Å) 3.29 Resolution Method FSC 0.143 CUT-OFF Other Details Refinement Type Symmetry Type POINT Point Symmetry C4
Map-Model Fitting and Refinement Id 1 Refinement Space Refinement Protocol AB INITIO MODEL Refinement Target Overall B Value Fitting Procedure Details
Data Acquisition Detector Type GATAN K3 (6k x 4k) Electron Dose (electrons/Å**2) 31.9
Imaging Experiment 1 Date of Experiment Temperature (Kelvin) Microscope Model TFS KRIOS Minimum Defocus (nm) 1200 Maximum Defocus (nm) 2700 Minimum Tilt Angle (degrees) Maximum Tilt Angle (degrees) Nominal CS Imaging Mode BRIGHT FIELD Specimen Holder Model Nominal Magnification Calibrated Magnification Source FIELD EMISSION GUN Acceleration Voltage (kV) 300 Imaging Details
EM Software Task Software Package Version PARTICLE SELECTION cryoSPARC 3.2 CTF CORRECTION cryoSPARC v3.2 MODEL FITTING Coot 0.9 INITIAL EULER ASSIGNMENT cryoSPARC v3.2 FINAL EULER ASSIGNMENT cryoSPARC v3.2 CLASSIFICATION cryoSPARC 4.2 RECONSTRUCTION cryoSPARC 4.2 MODEL REFINEMENT PHENIX 1.21_5207
Image Processing CTF Correction Type CTF Correction Details Number of Particles Selected Particle Selection Details PHASE FLIPPING AND AMPLITUDE CORRECTION 8821241