Leading Biology's HLA-DRB4 Rabbit pAb (APR17714N) is a Rabbit Polyclonal antibody. This antibody has been shown to work in applications such as: Western Blot. The HLA-DRB4 Rabbit pAb (APR17714N) Antibody was generated using HLA-DRB4 as the antigen and it reacts with Human, and Mouse.