The Immunotag™ Sp3/4 Polyclonal Antibody from G Biosciences is a Rabbit Polyclonal antibody to SP3, and Sp4. This antibody recognizes Human, Mouse, and Rat antigen. The Immunotag™ Sp3/4 Polyclonal Antibody has been validated for the following applications: ELISA, Immunofluorescence, Immunohistochemistry, Immunohistochemistry - fixed, and Western Blot.