OR2B6 is a gene that encodes a protein belonging to the olfactory receptor (OR) family, which is involved in detecting and recognising odour molecules. These receptors are located on the surface of olfactory sensory neurones in the nasal cavity and play a key role in initiating olfactory signal transduction. OR2B6 specifically binds to certain odour molecules, triggering signals that are ultimately transmitted to the brain for odour perception.