The AK-7 monoclonal antibody specifically binds to CD49b. CD49b is also known as integrin α2 chain, VLA-α2, and GP1a. CD49b is a type I transmembrane glycoprotein and belongs to the integrin family of extracellular matrix and cell-cell adhesion receptors. CD49b is expressed on numerous cell types including platelets, activated T cells, B cells, and monocytes. CD49b noncovalently associates with CD29 to form the VLA-2 complex (integrin α2/β1). The VLA-2 complex serves as a receptor for collagen and laminin. It can regulate responses mediated by proinflammatory effector cells.
The antibody was conjugated to BD Horizon™ BUV496 which is part of the BD Horizon Brilliant™ Ultraviolet family of dyes. This dye is a tandem fluorochrome of BD Horizon BUV395 with an Ex Max of 348-nm and an acceptor dye with an Em Max at 496-nm. BD Horizon BUV496 can be excited by the ultraviolet laser (355 nm) and detected with a 515/30 nm filter with a 450LP. Due to the excitation of the acceptor dye by other laser lines, there may be significant spillover into the channel detecting BD Horizon V500 or BV510 (eg, 525/40-nm filter). However, the spillover can be corrected through compensation as with any other dye combination.