Anti-CD55 Antibody

CD55, also known as Decay Accelerating Factor (DAF), is a glycosylphosphatidylinositol (GPI)-anchored cell surface glycoprotein that limits complement activation by accelerating the decay of C3 and C5 convertases. This rabbit polyclonal reagent from Antibodies.com targets the human CD55 antigen and is supplied as 100µl of a 1 mg/ml stock in PBS containing 0.1% sodium azide and 50% glycerol for stable refrigerated storage. The unconjugated antibody is validated for Western blot, immunohistochemistry, and immunofluorescence workflows, supporting studies of complement regulation, autoimmune disease models, transplantation biology, and tumor immune evasion where CD55 overexpression has been observed. Aliquot upon receipt to limit freeze-thaw cycles and protect the solution from prolonged light exposure to preserve antibody activity across repeated experiments.