The Rabbit Anti-Interleukin 21 Antibody from MyBioSource.com is a Rabbit Polyclonal antibody to IL21, and Interleukin 21. This antibody recognizes Rat antigen. The Rabbit Anti-Interleukin 21 Antibody has been shown to work in the following applications: Immunocytochemistry, Immunohistochemistry, Immunoprecipitation, and Western Blot.