Gαolf, OMP, and GBC-1 levels change after differentiation of odora cells. Protein transfer blots (left) of control (C) and treated (T) odora cell extracts reveal an increase in overall Gαolf expression after differentiation. However, the percentage of cells (right, average ± SD) expressing immunohistochemically detectable levels of Gαolf does not increase after treatment, suggesting an increase in Gαolflevels in each expressing cell. In contrast, the percent of cells expressing detectable levels of OMP increases, and the percent expressing GBC-1 decreases after differentiation.