Stemgent® HRP Goat anti-Rat IgG (light chain) Polyclonal Antibody was screened on mouse stem cells via western blot and selected as the best application-tested secondary antibody, among those tested, for stem cell research applications. This polyclonal goat anti-rat IgG antibody reacts with the light chains of rat IgG and those common to other rat immunoglobulins. Reaction is primarily with k light chains. The antibody does not react with the heavy chain of rat IgG. Antibody has been tested by ELISA to ensure minimal cross-reactivity with human, mouse, bovine, goat rabbit, sheep and horse immunoglobulins. However, cross-reaction with immunoglobulins from other species has not been tested.