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human Connexin 26 class 1 hexamer at 90mmHg PCO2, pH7.4
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 9.512 f_angle_d 0.408 f_chiral_restr 0.035 f_plane_restr 0.003 f_bond_d 0.002
Sample hexameric assembly of human connexin 26 in 90mmHg PCO2, pH7.4
Specimen Preparation Sample Aggregation State PARTICLE Vitrification Instrument LEICA EM GP Cryogen Name ETHANE-PROPANE Sample Vitrification Details 3 microlitres protein applied to grid, blot time 6 seconds, in 15% CO2/85%N2 atmosphere
3D Reconstruction Reconstruction Method SINGLE PARTICLE Number of Particles 414758 Reported Resolution (Å) 2 Resolution Method FSC 0.143 CUT-OFF Other Details Refinement Type Symmetry Type POINT Point Symmetry C6
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 K3 (6k x 4k) Electron Dose (electrons/Å**2) 45
Imaging Experiment 1 Date of Experiment Temperature (Kelvin) Microscope Model FEI TITAN KRIOS Minimum Defocus (nm) 1000 Maximum Defocus (nm) 2000 Minimum Tilt Angle (degrees) Maximum Tilt Angle (degrees) Nominal CS 2.7 Imaging Mode BRIGHT FIELD Specimen Holder Model FEI TITAN KRIOS AUTOGRID HOLDER Nominal Magnification 105000 Calibrated Magnification Source FIELD EMISSION GUN Acceleration Voltage (kV) 300 Imaging Details
EM Software Task Software Package Version IMAGE ACQUISITION EPU 2.X CTF CORRECTION Gctf MODEL FITTING Coot 0.8.9.2 EL MODEL REFINEMENT PHENIX 1.18.2-3874 RECONSTRUCTION RELION 3.1-beta
Image Processing CTF Correction Type CTF Correction Details Number of Particles Selected Particle Selection Details PHASE FLIPPING AND AMPLITUDE CORRECTION 2655822 LoG picker implemented in Relion3.1-beta