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 smooth muscle relaxation, immune system regulation, and water and ion transport in the lungs. It also plays a role in regulating circadian rhythms and is associated with conditions including asthma and pulmonary hypertension.
