Used in immunological research to quantify mouse Toll-like receptor 4 (TLR4) levels in biological samples such as serum, plasma, cell lysates, and tissue homogenates. This ELISA kit enables researchers to study TLR4 expression in the context of innate immune responses, inflammation, and infectious diseases. It is particularly valuable in studies involving sepsis, autoimmune disorders, and vaccine development where TLR4 signaling plays a key role. The assay provides a sensitive and specific method to measure changes in TLR4 concentration under experimental conditions, supporting both basic research and preclinical evaluation of therapeutic agents targeting the TLR4 pathway.