|Human, Mouse, Rat|
Application Methods: Immunofluorescence (Frozen), Immunoprecipitation, Western Blotting
Background: Metabotropic glutamate receptor 2 (mGluR2) is a class C G protein-coupled receptor for the neurotransmitter glutamate in the mammalian brain. Unlike ionotropic receptors, metabotropic receptors do not form an ion channel pore themselves but are indirectly linked to ion channels (1). While mGluR1 and mGluR5 activate phospholipase C, mGluR2, mGluR3, mGluR4, and mGluR6 are coupled to the inhibitory G protein Gα(i/o) and inhibit adenylyl cyclase (AC) activity (1). Research studies have suggested that mGluR2/3 receptors may be potential targets for the treatment of Schizophrenia (2). Furthermore, mGluR2 interacts with the 5HT2A serotonin receptor to form a hetero-complex in the brain. This complex is a potential pharmacological target for hallucinogenic drugs (3,4).
Application Methods: Immunofluorescence (Frozen), Immunohistochemistry (Paraffin)
Background: Adenosine Receptor A2a (A2AR) is a G-protein-coupled receptor (GPCR). As a member of the purinergic adenosine receptors (A1, A2, and A3), A2AR activates classic G-protein signaling pathways upon binding of adenosine (1). Adenosine is present in all cells and extracellular fluids. Adenosine signaling, via A2AR, is mobilized during both physiological and pathological conditions. For example, adenosine, via A2AR, modulates neuronal function, acting to fine-tune neuronal function (2). A2AR function is modulated, in part, by its ability to form functional heteromers with other GPCRs, including dopamine receptors (D1 and D3), metabotropic glutamate receptors (mGluR5), and others (3). In the brain, A2AR is enriched in the basal ganglia, suggesting that A2AR may be a potential drug target for neurodegenerative diseases like Parkinson’s disease, drug addiction, and psychiatric disorders (4). Outside of the brain, A2AR may act as an immune checkpoint molecule to maintain an immunosuppressive tumor microenvironment, an environment that exhibits relatively elevated adenosine levels (5, 6).