Cells of a multicellular organism are genetically homogeneous but structurally and functionally heterogeneous owing to the differential expression of genes. Many of these differences in gene ...

FcεRI is a multimeric immune Fc receptor that binds IgE with high affinity. It has a tetrameric structure on the surface of mast cells and basophils, consisting of one IgE-binding α-chain, one β-chain ...