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 conjugated to BD Horizon™ BV605 which is part of the BD Horizon Brilliant™ Violet family of dyes. With an Ex Max of 407-nm and Em Max of 602-nm, BD Horizon BV605 can be excited by a violet laser and detected with a standard 610/20-nm filter set. BD Horizon BV605 is a tandem fluorochrome of BD Horizon BV421 and an acceptor dye with an Em max at 605-nm. Due to the excitation of the acceptor dye by the green (532 nm) and yellow-green (561 nm) lasers, there will be significant spillover into the PE and BD Horizon PE-CF594 detectors off the green or yellow-green lasers. BD Horizon BV605 conjugates are very bright, often exhibiting brightness equivalent to PE conjugates and can be used as a third color off of the violet laser.