Bio-Rad (Formerly AbD Serotec)'s RAT ANTI HUMAN CD28 is a Rat monoclonal antibody. The RAT ANTI HUMAN CD28 Antibody was generated using CD28 as the antigen. It reacts with Homo Sapiens, and Human. This antibody has been shown to work in applications such as: Histology, Flow Cytometry, Immunohistochemistry, and Immunohistochemistry - frozen.