Anti-CD66e Antibody

CD66e, also known as carcinoembryonic antigen (CEA), is a glycosylated cell-surface protein belonging to the immunoglobulin superfamily that mediates homophilic and heterophilic adhesion between epithelial cells. Produced as a polyclonal reagent in rabbit and supplied by Antibodies.com at 100 µl per vial, this unconjugated primary antibody is intended for western blot and ELISA workflows against human samples. Researchers studying colorectal, gastric, and pancreatic carcinomas commonly use anti-CD66e reagents to characterize tumor cell adhesion, epithelial differentiation, and metastatic signaling. The polyclonal format offers broader epitope recognition across the CEA immunoglobulin-like domains, supporting detection of multiple isoforms that arise from differential glycosylation in malignant tissue. The unconjugated presentation gives laboratories the flexibility to pair the reagent with their own HRP, biotin, or fluorophore-labelled secondary antibodies, and the human reactivity profile makes it well suited to translational oncology research, biomarker validation studies, and immunohistochemistry-adjacent assays.