Patent ID: 6933131

Claim:
An isolated nucleic acid comprising a sequence selected from (a) a sequence comprising nucleotide No. 372 to nucleotide No. 2681 of SEQ ID NO: 1, nucleotide No. 335 to nucleotide No. 1822 of SEQ ID NO: 3 or nucleotide No. 95 to nucleotide No. 1597 of SEQ ID NO: 5, (b) a sequence complementary to the entire length of one of the sequences defined under (a), and (c) a sequence which, due to degeneracy of the genetic code, encodes the same amino acid sequences as those encoded by the sequences defined under (a), wherein nucleotides 372-2681 of SEQ ID NO:1, nucleotides 335-1822 of SEQ ID NO:3, and nucleotides 95-1597 of SEQ ID NO: 5 each encode an acetylcholine receptor subunit having the ability to form homooligomeric acetylcholine receptors when expressed in a host cell.