Anti-KS19.1 Antibody

This Mouse monoclonal reagent from Antibodies.com targets the KS19.1 epitope of cytokeratin 19, an intermediate filament protein expressed in simple and glandular epithelia. The unconjugated antibody is supplied as 100µl of working solution and is validated for Western blot and immunohistochemistry on human tissue samples. Researchers apply this clone to differentiate epithelial-derived carcinomas from mesenchymal or lymphoid tumors, characterize circulating tumor cells in peripheral blood, and map epithelial architecture in tissue sections. The Mouse host origin reduces background in human specimens, while the unconjugated format permits flexible pairing with custom HRP, biotin, or fluorophore labels for varied detection chemistry. Used widely in pathology research and oncology studies, KS19.1 functions as a dependable epithelial marker when probing for cytokeratin-positive cells across fixed and frozen tissue preparations.