MyBioSource.com's Phospho-ATF4 (Ser219) Rabbit pAb is a Rabbit Polyclonal antibody. This antibody has been shown to work in applications such as: Western Blot. The Phospho-ATF4 (Ser219) Rabbit pAb Antibody was generated using ATF4 as the antigen and it reacts with Homo Sapiens, and Human.