The 235614 monoclonal antibody specifically binds to CRACC (CD2-like receptor activating cytotoxic cells) which is also known as CD319, CS1 (CD2 subset 1), SLAMF7, 19A, and 19A24. CRACC is a type I transmembrane glycoprotein that belongs to the CD2 family of receptors within the Ig superfamily. CRACC is expressed on most NK cells and subsets of CD8+ T cells, CD4+ T cells, B cells, macrophages, and dendritic cells. CRACC reportedly plays roles in the activation, proliferation and effector functions of T cells, NK cells, and other leucocytes.
The antibody was conjugated to BD Horizon BV750 which is part of the BD Horizon Brilliant™ Violet family of dyes. This dye is a tandem fluorochrome of BD Horizon BV421 with an Ex Max of 405-nm and an acceptor dye with an Em Max at 750-nm. BD Horizon Brilliant BV750 can be excited by the violet laser (405 nm) and detected with a 750/30 nm filter with a 740 nm long pass. Due to spectral differences between labeled cells and beads, using BD™ CompBeads can result in incorrect spillover values when used with BD Horizon BV750 reagents. Therefore, the use of BD CompBeads or BD CompBeads Plus to determine spillover values for these reagents is not recommended.