NCIt definition : Adenosine receptor A2b (332 aa, 36 kDa) is encoded by the human ADORA2B gene. This
protein is involved in signaling and cellular defense.;
NCIt note : Encoded by human ADORA2B Gene (GPCR1 Family), 332-aa 360-kDa Adenosine A2B Receptor
is a cell-surface integral membrane protein containing 7 transmembrane domains that
interacts with a heterotrimeric G protein complex in response to adenosine ligand
to stimulate cAMP accumulation through adenylate cyclase activation. ADORA2B is also
a Netrin-1 receptor in axon elongation, inducing cAMP accumulation. Netrin-1 also
binds DCC, which interacts with ADORA2B as well; Netrin-1 growth-promotion may require
a DCC/A2B receptor complex or act through DCC independently of ADORA2B. Cycling expression
of clock gene Period-1 (rodent) depends on adenosine A2B receptor, which occurs through
nocturnal activation of melatonin Mt1 receptors.; Protein_Plays_Role_In_Biological_Process: Axon Elongation;