odorant binding protein

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o·dor·ant bind·ing pro·tein

proteins in nasal mucus that bind lipophilic odor-producing molecules and transfer them to the olfactory receptors. Similar proteins may mediate taste.
References in periodicals archive ?
7] pointed out that Odorant binding proteins (OBPs) and chemosensory proteins (CSPs) are two of the best known olfactory proteins in insects, but chemosensory protein (CSPs) is the only carrier transmits of recognition signals to the olfactory receptor neurons.