The Pab Rb x human IL21, CT (IL21, Interleukin-21, Za11) (Biotin) antibody from United States Biological is a Rabbit Polyclonal antibody to IL21, and Interleukin 21. This antibody recognizes Homo Sapiens, and Human antigen. The Pab Rb x human IL21, CT (IL21, Interleukin-21, Za11) (Biotin) antibody has been shown to work in the following applications: EIA, Immunoassay, ELISA, and Western Blot.