Anti-CD55 Antibody

The Antibodies.com polyclonal reagent targets CD55, the GPI-anchored complement regulator also known as decay-accelerating factor (DAF). This unconjugated rabbit antibody recognizes the human protein in Western blot and immunofluorescence workflows and is supplied as a 100 µl vial. Researchers investigating complement-mediated cytotoxicity, autoimmune disease models, and tumor immune evasion frequently use CD55 markers to characterize cell-surface expression on erythrocytes, epithelial lines, and cancer cells. The polyclonal format provides broader epitope coverage than monoclonal alternatives, supporting studies of full-length CD55 distribution on plasma membranes and cytoplasmic compartments. Recommended storage at 4 °C preserves activity for routine short-term use; for extended stability, aliquot and freeze at -20 °C to limit freeze-thaw damage. The unconjugated presentation allows flexible reporter selection, from HRP-conjugated secondary reagents for chemiluminescent Western blot to Alexa Fluor or DyLight dyes for fluorescence imaging of fixed sections.