Anti-CST2 Antibody

The Anti-CST2 Antibody from Antibodies.com is a rabbit polyclonal IgG reagent raised against Cystatin SA, a secreted cysteine protease inhibitor of the type 2 cystatin family. Supplied as an unconjugated liquid in a 200 µl vial format, it is validated for Western blot and immunofluorescence workflows and recognizes endogenous CST2 in both human and mouse samples, supporting comparative studies across species.

CST2 is expressed in saliva, tears, and other secretory fluids, and altered CST2 levels have been reported in several tumor types, making the reagent relevant to cancer biology, oral biology, and protease regulation research. The polyclonal format provides broader epitope coverage for tracking full-length protein expression, processing events, and subcellular localization in fixed cells and tissue sections.

For immunofluorescence, cells or sections can be counterstained with standard nuclear markers to map CST2 distribution relative to other cellular compartments, while Western blot analysis typically resolves CST2 as a band near its predicted molecular weight. Store refrigerated and protect from light, and aliquot to avoid repeated freeze-thaw cycles so antibody activity is preserved across multiple experiments.