The Pab Rb x human Interferon Alpha 21 (Biotin) antibody from United States Biological is a Rabbit Polyclonal antibody to IFNA21, and interferon alpha 21. This antibody recognizes Human antigen. The Pab Rb x human Interferon Alpha 21 (Biotin) antibody has been validated for the following applications: Immunocytochemistry, Immunohistochemistry, and Western Blot.