The Mab Mo x human Complement Factor C4d (C4d) (Biotin) antibody from United States Biological is a Mouse Monoclonal antibody to C4A, complement component 4B (Chido blood group), copy 2, and C4B_2. This antibody recognizes Homo Sapiens, and Human antigen. The Mab Mo x human Complement Factor C4d (C4d) (Biotin) antibody has been shown to work in the following applications: EIA, Immunoassay, ELISA, and Immunohistochemistry.