Leading Biology's Cytokeratin 4 (KRT4) Rabbit pAb (APR18833N) is a Rabbit Polyclonal antibody. This antibody has been shown to work in applications such as: Western Blot. The Cytokeratin 4 (KRT4) Rabbit pAb (APR18833N) Antibody was generated using Keratin 4, and KRT4 as the antigen and it reacts with Human.