Leading Biology's ApoE Rabbit pAb (APR19031N) is a Rabbit Polyclonal antibody. This antibody has been shown to work in applications such as: Immunohistochemistry. The ApoE Rabbit pAb (APR19031N) Antibody was generated using APOE, and Apolipoprotein E as the antigen and it reacts with Human, Mouse, and Rat.