Fig 3
Chimeric subunits between the δ and the ε subunits. (A), 3D structure of nAChR. The extracellular domain, the transmembrane domain and the intracellular domain are shown in cyan, green and magenta, respectively. Two bungarotoxin (BTX) molecules, shown in red, bind to the extracellular domain (PDB ID; 6uwz) [ |