Low endotoxin anti-mouse primary antibodies are reagents designed to bind specific mouse antigens while minimizing lipopolysaccharide (LPS) contamination. Endotoxins from Gram-negative bacteria can nonspecifically activate immune cells, skew cytokine profiles, and confound in vitro and in vivo results. These antibodies are purified to very low endotoxin levels, often below 1 EU/mg, preserving experimental integrity. By preventing TLR4-mediated activation, they improve reproducibility.

Applications

They are used for in vivo immune cell depletion, receptor blockade, and cytokine neutralization, where endotoxin-induced inflammation must be avoided. They are also essential for functional assays using primary macrophages, dendritic cells, or T cells, and for sensitive molecular analyses such as transcriptomics or proteomics. Carrier-free and azide-free formats support conjugation to fluorochromes, enzymes, or isotopes.

Specificity

Specificity refers to selective, high-affinity binding to a defined epitope on a target mouse protein, with minimal cross-reactivity to related molecules or other species. Monoclonal and polyclonal formats may differ in epitope coverage. Each antibody is validated for applications such as flow cytometry, immunohistochemistry, immunoprecipitation, and functional assays. Rigorous quality control confirms low endotoxin content and target specificity. This ensures observed effects reflect specific antigen targeting rather than endotoxin-mediated activation, making these reagents critical for reproducible, physiologically relevant research.