Dopamine receptor D₂ polyclonal antibody

Dopamine is the predominant catecholamine neurotransmitter in the mammalian brain, where it regulates locomotor, emotional, memory, and dietary intake functions, as well as peripheral roles such as hormone secretion and renal function. Dopamine receptors (D1-D5) are members of the seven transmembrane domain containing GPCR family, and are the target of several anti-psychosis and anti-Parkinsonian drugs. The D2, D3, and D4 receptors signal via coupling of Gi/Go alpha G-protein subunits to inhibit adenylyl cyclase activity and modulate cellular potassium and calcium ion channel conductance. Expression of the D2 receptor is found primarily in the brain (striatum, olfactory tubercle, and nucleus accumbens) and in the anterior and intermediate lobes of the pituitary.