Cobratoxin and {TAIL ~ alpha bungarotoxin} have highest affinity for NAchRs containing {HEAD ~ the alpha} 1 and 7 subunits  
Cobratoxin and { TAIL ~ alpha bungarotoxin } have highest affinity for NAchRs containing { HEAD ~ the alpha } 1 and 7 subunits
OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH