elucidation of the structure and function of the nicotinic acetylcholine receptor has been facilitated by the use of the electric organs of torpedo ray or electrophorus eel as rich sources of the receptor and by the use of snake polypeptide toxins such as alpha-bungarotoxin as highly selective labels of the acetylcholine binding site .
C0034830
nicotinic acetylcholine receptor
C0034792
acetylcholine binding site