The Immunotag™ IL21 Antibody from G Biosciences is a Rabbit Polyclonal antibody to IL-21, IL21, and Interleukin 21. This antibody recognizes Human, and Mouse antigen. The Immunotag™ IL21 Antibody has been validated for the following applications: ELISA, Immunocytochemistry, Immunofluorescence, and Western Blot.