Cell Signaling Technology's CTLA-4 (E2V1Z) Rabbit mAb (BSA and Azide Free) is a Rabbit monoclonal antibody. The CTLA-4 (E2V1Z) Rabbit mAb (BSA and Azide Free) Antibody was generated using CTLA4 as the antigen. It reacts with Homo Sapiens, Human, and Mouse. This antibody has been shown to work in applications such as: Immunohistochemistry, Immunohistochemistry - fixed, and Western Blot.