The 2D3 monoclonal antibody specifically binds to CD249. CD249 is encoded by ENPEP and is also known as Aminopeptidase A (APA/AP-A), Glutamyl aminopeptidase (EAP), and gp160. CD249 is expressed by epithelial and endothelial cells in a variety of tissues including those that comprise the proximal tubules and glomeruli of the kidneys. It is also expressed by early B-lineage cells and cell lines. CD249 belongs to the peptidase M1 family and catalyzes the release of N-terminal glutamate (and to a lesser degree, aspartate) from peptides. This ectoenzyme catalyzes the conversion of angiotensin II to angiotensin III which is important in the local regulation of blood pressure. It may also play roles in the regulation of angiogenesis and development of B cells.
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.