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Structure of connexin-50 intercellular gap junction channel at 3.4 angstrom resolution by cryoEM
Starting Model(s) Initial Refinement Model(s) Type Source Accession Code Details experimental model PDB 2ZW3
Refinement RMS Deviations Key Refinement Restraint Deviation f_dihedral_angle_d 11.807 f_angle_d 0.959 f_chiral_restr 0.06 f_bond_d 0.007 f_plane_restr 0.006
Sample Connexin-50 gap junction
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 30128 Reported Resolution (Å) 3.4 Resolution Method FSC 0.143 CUT-OFF Other Details Refinement Type Symmetry Type POINT Point Symmetry D6
Map-Model Fitting and Refinement Id 1 (2ZW3) Refinement Space REAL Refinement Protocol Refinement Target Overall B Value Fitting Procedure Details
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) 1250 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 105000 Calibrated Magnification Source FIELD EMISSION GUN Acceleration Voltage (kV) 300 Imaging Details
EM Software Task Software Package Version PARTICLE SELECTION DoG Picker IMAGE ACQUISITION SerialEM CTF CORRECTION Gctf MODEL FITTING Coot INITIAL EULER ASSIGNMENT RELION 2 FINAL EULER ASSIGNMENT RELION 2 CLASSIFICATION RELION 2 RECONSTRUCTION RELION 2 MODEL REFINEMENT PHENIX 1.13
Image Processing CTF Correction Type CTF Correction Details Number of Particles Selected Particle Selection Details PHASE FLIPPING AND AMPLITUDE CORRECTION 398066