The Rabbit Anti-IL21 Antibody (HRP) from United States Biological is a Rabbit Polyclonal antibody to IL21, and Interleukin 21. This antibody recognizes Homo Sapiens, and Human antigen. The Rabbit Anti-IL21 Antibody (HRP) has been shown to work in the following applications: EIA, Immunoassay, Block/Neutralize/Inhibit, ELISA, and Western Blot.