to investigate functional differences between the different subtypes , we assessed the ability of each to interact with adenylyl cyclase and polyphosphoinositide metabolism by permanently and transiently expressing the dnas encoding the alpha 1 , the alpha 2-c10 , and the alpha 2-c4 adrenergic receptors in cells lacking endogenous alpha-adrenergic receptors .
C0001639
alpha 2
C0034784
alpha-adrenergic receptors