VIPR1 (Vasoactive Intestinal Peptide Receptor 1): VIPR1 is a receptor that binds vasoactive intestinal peptide (VIP), a neuropeptide involved in various physiological processes such as relaxation of smooth muscles, regulation of the immune system, and transport of water and ions in the lungs. It also plays a role in regulating the circadian rhythm and is associated with conditions like asthma and pulmonary hypertension.
