The FcRn (E4D5I) Rabbit mAb Antibody from Cell Signaling Technology is a Rabbit Monoclonal antibody to FCGRT. This antibody recognizes Mouse, and Rat antigen. The FcRn (E4D5I) Rabbit mAb Antibody has been shown to work in the following applications: Immunohistochemistry, Immunohistochemistry - fixed, and Western Blot.