Used in immunological research to quantify levels of human α/β interferon receptor in biological samples such as serum, plasma, or cell culture supernatants. Enables study of interferon signaling pathways involved in antiviral responses, autoimmune diseases, and cancer immunotherapy. Supports evaluation of receptor expression changes during infection or treatment with interferon-based drugs. Widely applied in biomedical research, clinical labs, and drug development to assess immune system activation and monitor therapeutic efficacy.