A variant human &agr;7 nicotinic acetylcholine receptor (nAChR) polypeptide is provided wherein the variant contains an amino acid substitution at the valine-274 position of the wild-type human &agr;7 nAChR. Nucleic acid molecules encoding the variant human &agr;7 nAChR, vectors and host cells containing such nucleic acid molecules are also provided. In addition, methods are provided for producing the variant as are methods of using such variants for screening compounds for activity at the nAChR.
提供了一种变体人 &agr;7
烟碱乙酰胆碱受体(nAChR)
多肽,其中变体包含野生型人 &agr;7 nAChR 的缬
氨酸-274 位上的
氨基酸替换。还提供了编码变体人 &agr;7 nAChR 的核酸分子、载体和含有这种核酸分子的宿主细胞。此外,还提供了生产变体的方法,以及使用这种变体筛选化合物在 nAChR 上活性的方法。