Primary structure of α-subunit precursor of Torpedo californica acetylcholine receptor deduced from cDNA sequence

Abstract
DNA sequences complementary to the Torpedo californica electroplax mRNA coding for the α-subunit precursor of the acetylcholine receptor were cloned. The nucleotide sequence of the cloned cDNA indicates that the precursor consists of 461 amino acids including a prepeptide of 24 amino acids. Possible sites for acetylcholine binding and antigenic determinants on the α-subunit molecule are discussed.