Adrenergic Receptor Beta 1 (ADRb1)

The beta-1 adrenergic receptor is a beta-adrenergic receptor,The adrenergic receptors (or adrenoceptors) are a class of G protein-coupled receptors that are targets of the catecholamines, especially noradrenaline (norepinephrine) and adrenaline (epinephrine). Although dopamine is a catecholamine, its receptors are in a different category.Many cells possess these receptors, and the binding of an agonist will generally cause a sympathetic response (i.e. the fight-or-flight response). For instance, the heart rate will increase and the pupils will dilate, energy will be mobilized, and blood flow diverted from other non-essential organs to skeletal muscle.Beta-adrenergic receptors mediate the catecholamine- induced activation of adenylate cyclase through the action of G proteins.