Santa Cruz Biotechnology, Inc.'s Rb (Rb1): m-IgG1 BP-HRP Bundle Antibody monoclonal antibody. The Rb (Rb1): m-IgG1 BP-HRP Bundle Antibody was generated using RB1 as the antigen. It reacts with Homo Sapiens, Human, Mouse, and Rat. This antibody has been shown to work in applications such as: Precipitation, Flow Cytometry, Immunofluorescence, Immunohistochemistry - fixed, Immunoprecipitation, and Western Blot.