Used to detect and quantify mouse immunoglobulin G2a (IgG2a) in biological samples such as serum, plasma, or cell culture supernatants. Commonly applied in immunological research to monitor immune responses, especially in studies involving vaccines, infections, or autoimmune diseases. Helps assess Th1-type immune responses since IgG2a is associated with this pathway in mice. The kit enables high-throughput analysis with high specificity and sensitivity, making it suitable for preclinical studies and antibody production monitoring.