The Immunotag™ ERK1 Rabbit Polyclonal Antibody from G Biosciences is a Rabbit Polyclonal antibody to MAPK1, and MAPK3. This antibody recognizes Human, Mouse, and Rat antigen. The Immunotag™ ERK1 Rabbit Polyclonal Antibody has been shown to work in the following applications: Immunohistochemistry, and Immunohistochemistry - fixed.