alpha1-adrenergic receptor activity
alpha1 adrenoceptor
exact
Combining with epinephrine or norepinephrine to initiate a change in cell activity via activation of a G protein, with pharmacological characteristics of alpha1-adrenergic receptors; the activity involves transmitting the signal to the Gq alpha subunit of a heterotrimeric G protein.
GO:0004936
alpha-adrenergic receptor activity
is_a