Figure 5

A1 expression induced by FcεRI and FcγRIIB or by FcεRI alone. A ribonuclease protection assay was performed on ribonucleic acid isolated from C57 cells activated as in Figure 1A for 6 hours, and quantifications of A1 transcript levels are shown relative to their corresponding levels GAPDH housekeeping gene. Data shown are representative of three separate experiments. IgE = immunoglobulin E; IgG = immunoglobulin G; RAM = rabbit anti-mouse.