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Cryo-EM structure of the pancreatic ATP-sensitive potassium channel in the presence of carbamazepine and ATP with Kir6.2-CTD in the up conformation
Starting Model(s) Initial Refinement Model(s) Type Source Accession Code Details experimental model PDB 7TYS
Sample KATP-CBZ-ATP-CTD-up
Specimen Preparation Sample Aggregation State PARTICLE Vitrification Instrument Cryogen Name ETHANE Sample Vitrification Details
3D Reconstruction Reconstruction Method SINGLE PARTICLE Number of Particles 50000 Reported Resolution (Å) 5.2 Resolution Method FSC 0.143 CUT-OFF Other Details Refinement Type Symmetry Type POINT
Map-Model Fitting and Refinement Id 1 (7TYS) Refinement Space REAL Refinement Protocol RIGID BODY FIT Refinement Target Overall B Value Fitting Procedure Details rigid-body refinement only using 7TYS protein chain with all non-pro sidechains stubbed at CB
Data Acquisition Detector Type GATAN K2 SUMMIT (4k x 4k) Electron Dose (electrons/Å**2) 40
Imaging Experiment 1 Date of Experiment Temperature (Kelvin) Microscope Model FEI TITAN KRIOS Minimum Defocus (nm) 1000 Maximum Defocus (nm) 2600 Minimum Tilt Angle (degrees) Maximum Tilt Angle (degrees) Nominal CS 2.7 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 MODEL FITTING Coot INITIAL EULER ASSIGNMENT RELION CLASSIFICATION RELION RECONSTRUCTION RELION MODEL REFINEMENT PHENIX
Image Processing CTF Correction Type CTF Correction Details Number of Particles Selected Particle Selection Details NONE