Tags: Protein.
CD23 also known as Fc epsilon RII or FcεRII is the low-affinity receptor for IgE an antibody isotype involved in allergy and resistance to parasites and is important in regulation of IgE levels. Unlike many of the antibody receptors CD23 is a C-type lectin. It is found on mature B cells activated macrophages eosinophils follicular dendritic cells and platelets.There are two forms of CD23: CD23a and CD23b.