Anti-CK7 Antibody

CK7 (Cytokeratin 7) is a 55 kDa type II intermediate filament protein expressed in simple and glandular epithelia, and Antibodies.com offers this unconjugated mouse monoclonal antibody as a diagnostic marker for distinguishing carcinoma subtypes in immunohistochemistry workflows.

The antibody is supplied as a 100 µl vial and is validated for western blot and IHC applications, with reactivity confirmed against human, mouse, and rat CK7. In tumor pathology, CK7 staining helps separate lung, breast, ovarian, endometrial, thyroid, pancreatic, and cholangiocarcinomas (typically CK7-positive) from colorectal, hepatocellular, renal, and prostatic adenocarcinomas (typically CK7-negative), and is routinely paired with CK20 for differential diagnosis. Researchers can apply it to formalin-fixed paraffin-embedded tissue sections or to cell lysates for protein expression analysis.