Tags: Protein.
The alpha-2A adrenergic receptor (α2A adrenoceptor) also known as ADRA2A is an α2 adrenergic receptor and also denotes the human gene encoding it.== Receptor ==α2 adrenergic receptors include 3 highly homologous subtypes: α2A α2B and α2C. These receptors have a critical role in regulating neurotransmitter release from sympathetic nerves and from adrenergic neurons in the central nervous system.