United States Biological's Pab Rb x human PENK (Proenkephalin-A) antibody is a Rabbit Polyclonal antibody. This antibody has been shown to work in applications such as: Immunohistochemistry, and Western Blot. The Pab Rb x human PENK (Proenkephalin-A) antibody was generated using PENK, and proenkephalin as the antigen and it reacts with Homo Sapiens, and Human.