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Tarantula venom peptide Protoxin-I bound to full-length human voltage-gated sodium channel 1.8 (NaV1.8)
Starting Model(s) Initial Refinement Model(s) Type Source Accession Code Details experimental model Other experimental model PDB 2M9L
Sample Sodium channel protein type 10 subunit alpha in complex with Beta/omega-theraphotoxin-Tp1a Sample Components Sodium channel protein type 10 subunit alpha Beta/omega-theraphotoxin-Tp1a
Specimen Preparation Sample Aggregation State PARTICLE Vitrification Instrument LEICA EM GP Cryogen Name ETHANE Sample Vitrification Details
3D Reconstruction Reconstruction Method SINGLE PARTICLE Number of Particles 267708 Reported Resolution (Å) 2.76 Resolution Method FSC 0.143 CUT-OFF Other Details Refinement Type Symmetry Type POINT
Map-Model Fitting and Refinement Id 1 (2m9l) 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) 60
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 PARTICLE SELECTION cryoSPARC 4.4 IMAGE ACQUISITION SerialEM CTF CORRECTION cryoSPARC 4.4 MODEL FITTING UCSF ChimeraX INITIAL EULER ASSIGNMENT cryoSPARC 4.4 FINAL EULER ASSIGNMENT cryoSPARC 4.4 RECONSTRUCTION cryoSPARC 4.4 MODEL REFINEMENT PHENIX MODEL REFINEMENT Coot
Image Processing CTF Correction Type CTF Correction Details Number of Particles Selected Particle Selection Details PHASE FLIPPING AND AMPLITUDE CORRECTION