Biolegend, 398905, Alexa Fluor® 647 anti-human CD66a/b/c/e Antibody

The 5B2 monoclonal antibody reacts with the antigen epitopes shared by CD66a, b, c and e, which are members of the CEA (carcinoembryonic antigen) family of the Ig superfamily. CD66 plays a role in hemophilic and heterophilic adhesion. CD66a, also known as CEACAM1 and BGP (biliary glycoprotein), is mainly expressed on granulocytes, binds to CD66a, c, e, and CD62E. CD66c (known as CEACAM6, NCA) is expressed on granulocytes and epithelial cells. The ligands of CD66c are CD66a-e, CD62E and Galectins. CD66d is a major granulocyte receptor mediating recognition and efficient opsonin-independent phagocytosis of CEACAM-binding microorganisms, including Neisseria , Moraxella and Haemophilus species, thus playing an important role in the clearance of pathogens by the innate immune system. CD66e molecule is also called CEA or CEACAM5, and is primarily found on epithelial cells. CD66e binds to CD66a, c and e.