Aim To clone the muscarinic receptors M1, M3 and M5 sequences of astrocyte cells,and compare the gene and protein sequences with those of neurons.

• 目的克隆胶质细胞M1、M3、M5受体亚型基因序列,比较胶质细胞和神经细胞M1、M3、M5受体亚型基因序列、蛋白质序列的差异。