OR1A2

Olfactory receptor activated by citronellal, a citronellic terpenoid often described as having citrus, fruity or herbal smells. Ligand-binding causes a conformation change that triggers signaling via G(s)-class of G alpha protein GNAL/G(olf), mediating activation of adenylate cyclase activity and increased production of cAMP, initiating a neuronal response that triggers the perception of a smell (By similarity)..

Function from UniProtKB (Q9Y585), read 2026-09-23. CC BY 4.0.