Used in immunological research to quantify levels of interferon regulatory factor 3 (IRF3) in mouse samples. Helps study activation of innate immune responses, particularly in viral infection models. Enables researchers to assess signaling pathways downstream of pattern recognition receptors like TLRs and RIG-I. Commonly applied in studies involving inflammation, antiviral defense mechanisms, and vaccine development. Provides a reliable, high-throughput method to measure IRF3 protein concentration in cell lysates or tissue homogenates.