MyBioSource.com's Monoclonal Antibody to Troponin I Type 3, Cardiac (TNNI3) is a Mouse monoclonal antibody. The Monoclonal Antibody to Troponin I Type 3, Cardiac (TNNI3) was generated using cardiac troponin I, cTnI, TNI, and TNNI3 as the antigen. It reacts with Human. This antibody has been shown to work in applications such as: ELISA, Immunocytochemistry, Immunohistochemistry, Immunohistochemistry - fixed, and Western Blot.