The ApoE4 (E5M4L) Rabbit mAb Antibody from Cell Signaling Technology is a Rabbit Monoclonal antibody to APOE, and Apolipoprotein E. This antibody recognizes Homo Sapiens, and Human antigen. The ApoE4 (E5M4L) Rabbit mAb Antibody has been shown to work in the following applications: Simple Western, Immunohistochemistry, Immunohistochemistry - fixed, and Western Blot.