G Biosciences' Immunotag™ IRS-1 (phospho Ser639) Polyclonal Antibody is a Rabbit Polyclonal antibody. This antibody has been shown to work in applications such as: ELISA, Immunohistochemistry, Immunohistochemistry - fixed, and Western Blot. The Immunotag™ IRS-1 (phospho Ser639) Polyclonal Antibody was generated using Insulin Receptor Substrate 1, and IRS1 as the antigen and it reacts with Human, Mouse, and Rat.