MyBioSource.com's Polyclonal Antibody to Complement Factor I (CFI) is a Rabbit Polyclonal antibody. This antibody has been shown to work in applications such as: ELISA, Immunocytochemistry, Immunohistochemistry, Immunohistochemistry - fixed, and Western Blot. The Polyclonal Antibody to Complement Factor I (CFI) was generated using CFI, Complement factor I, and FI as the antigen and it reacts with Human, and Rat.