Santa Cruz Biotechnology, Inc.'s p-Histone H2A.X (Ser139-7G9-H4) Antibody is a Mouse monoclonal antibody. The p-Histone H2A.X (Ser139-7G9-H4) Antibody was generated using H2A.X variant histone as the antigen. It reacts with Homo Sapiens, Human, Mouse, and Rat. This antibody has been shown to work in applications such as: Immunofluorescence, and Western Blot.