we have studied putative nicotinic acetylcholine receptors in the optic lobe of the newborn chick , using 125i-labeled alpha-bungarotoxin , a specific blocker of acetylcholine receptors in the neuromuscular junction , and [ 3h ] acetylcholine , a ligand which in the presence of atropine selectively labels binding sites of nicotinic character in rat brain cortex ( schwartz et al. , 1982 ) .
C0034792
acetylcholine receptors
C0034830
binding sites