Anti-CYFRA21-1 (Cytokeratin Fragment) Antibody

Targeting the soluble cytokeratin 19 fragment known as CYFRA21-1, this mouse monoclonal reagent from Antibodies.com recognizes an epithelial tumor marker most closely associated with non-small cell lung carcinoma. The antibody is supplied as 1 mg of ion exchange purified immunoglobulin in unconjugated format, with an IgG2b isotype that supports both ELISA and Western blot detection in cell lysates and conditioned media from epithelial-derived samples. Delivered as a ready-to-use liquid preparation intended for research use only, the reagent fits into biomarker assay development, circulating cytokeratin fragment profiling studies, and supporting immunohistochemistry workflows where cytokeratin 19 status is being investigated in patient-derived or experimental tissue specimens.