Creative Diagnostics' Human Anti-Human 4-1BB (utomilumab biosimilar) Monoclonal antibody, clone utomilumab is a Human monoclonal antibody. The Human Anti-Human 4-1BB (utomilumab biosimilar) Monoclonal antibody, clone utomilumab was generated using TNFRSF9 as the antigen. It reacts with Human. This antibody has been shown to work in applications such as: EIA, Immunoassay, and ELISA.