Adrenergic Receptor Alpha 1A (ADRa1A)

The alpha 1c- Adrenergic Receptor, also known as alpha 1a-adrenoceptor, is activated by epinephrine and norepinephrine. This receptor mediates calcium release upon ligand binding. The alpha 1-c adrenoceptor is one of three subtypes of alpha 1-adrenergic receptor (alpha 1 c/a, alpha 1b, and alpha 1d). The alpha 1c receptor couples to phospholipase C via a GTP-binding protein insensitive to pertussis toxin. Three isoforms are generated by alternative splicing. However, the corresponding isoforms of the protein have similar ligand-binding properties, effector coupling, and tissue distribution. Expression of this receptor has been reported in prostate, liver, kidney, heart, brain, spinal cord, bladder, and various blood vessels. ESTs have been isolated from liver and testis libraries.