Claim: One of the two possible models in explaining  Or83b's function, is that it could interact with specific odor stimuli independently of other ORs (a.k.a. odorant receptors), which are expressed in the cell walls of olfactory receptor neurons and are responsible for the detection of odorants which give rise to the sense of smell.
Evidence: One proposes are that it could interact with specific odor stimuli independently of other odorant receptors (ORs). Olfactory receptors (ORs), also known as odorant receptors, are expressed in the cell membranes of olfactory receptor neurons and are responsible for the detection of odorants (for example, compounds that have an odor) which give rise to the sense of smell.