MyBioSource.com's p53 (Phospho-Ser20) Rabbit pAb is a Rabbit Polyclonal antibody. This antibody has been shown to work in applications such as: Immunohistochemistry. The p53 (Phospho-Ser20) Rabbit pAb Antibody was generated using TP53, and tumor protein p53 as the antigen and it reacts with Human.