Used in immunological research to quantify monkey interleukin-2 receptor (IL-2R) levels in biological samples such as serum, plasma, or cell culture supernatants. This ELISA kit enables researchers to study T-cell activation and immune responses in non-human primate models, which is particularly valuable in preclinical studies for autoimmune diseases, transplant rejection, and infectious diseases like HIV/SIV. It supports evaluation of therapeutic interventions targeting the IL-2 signaling pathway by providing a reliable measure of receptor expression changes.