OR1B1 is a symbol for the gene, Olfactory receptor family 1 subfamily B member 1 (gene/pseudogene), in humans. Other names include: Olfactory receptor 1B1; Olfactory receptor 9-B; OR9-B; Olfactory receptor OR9-26; OR9-26; olfactory receptor, family 1, subfamily B, member 1 (gene/pseudogene). The encoded protein has an amino acid length of 318 and a mass of 35.3 kDa. Other isoforms may exist. This gene shares homology with other species, including: Mouse.