The D53-1473 monoclonal antibody specifically recognizes CD88, a 40 kDa polypeptide expressed on granulocytes (high), monocytes (low) and macrophages. CD88 is a G type protein-coupled receptor with seven transmembrane domains. It binds to C5a, the α chain of the complement component C5. C5a is cleaved from C5 during complement activation. The binding of C5a to C5a receptor (C5aR, CD88) on granulocytes leads to various effects including shedding of selectins, upregulation of adhesion molecules, chemotaxis, granule exocytosis and activation of NADPH oxidase. Clone D53-1473 was developed using a known C5aR N-terminal extracellular hydrophilic region (a.a. 1-31) peptide as immunogen. This antibody is useful in inflammation and chemotaxis research.
This antibody is routinely tested by flow cytometric analysis. Other applications were tested at BD Biosciences Pharmingen during antibody development only or reported in the literature.