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Combining with epinephrine or norepinephrine to initiate a change in cell activity. 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. Combining with epinephrine or norepinephrine to initiate a change in cell activity via activation of a G protein, with pharmacological characteristics of alpha-adrenergic receptors. Combining with epinephrine or norepinephrine to initiate a change in cell activity via activation of a G protein, with pharmacological characteristics of alpha2-adrenergic receptors; the activity involves transmitting the signal to the Gi alpha subunit of a heterotrimeric G protein. A receptor that binds an extracellular amine and transmits the signal to a heterotrimeric G-protein complex. These receptors are characteristically seven-transmembrane receptors and are made up of hetero- or homodimers.

View Gene Ontology (GO) Term

GO TERM SUMMARY
Name: alpha-adrenergic receptor activity
Acc: GO:0004936
Aspect: Molecular Function
Desc: Combining with epinephrine or norepinephrine to initiate a change in cell activity via activation of a G protein, with pharmacological characteristics of alpha-adrenergic receptors.
Synonyms:
  • alpha adrenoceptor
Proteins in PDR annotated with:
   This term: 1 [Search]
   Term or descendants: 17 [Search]


[geneontology.org]
INTERACTIVE GO GRAPH

GO:0004936 - alpha-adrenergic receptor activity (interactive image map)
YRC Informatics Platform - Version 3.0
Created and Maintained by: Michael Riffle