The 16F11 monoclonal antibody specifically binds to the extracellular domain of Notch2. This Type 1 transmembrane protein is a member of the Notch family that includes Notch1-4. Notch ligands include membrane-bound Jagged1, Jagged2 and Delta-like1, 3 and 4. Notch receptors mediate juxtacrine signals between adjacent cells. Upon ligand binding, Notch2 undergoes proteolytic cleavage that results in the release of the Notch intracellular domain, NICD. NICD translocates to the nucleus where it forms a transcriptional activator complex with the RBP-J DNA binding factor and other transcriptional cofactors. These multimeric complexes regulate the expression of multiple genes including those that orchestrate many facets of embryonic development and the subsequent functioning of cells within multiple organ systems. Notch2 is expressed on bone marrow cells, DN1 and DN2 thymocytes, B cells and activated T cells. Notch2 plays multiple roles in the immune system including the development of marginal zone B cells and the regulation of granzyme B expression by CD8+ T cells. In altered forms, Notch2 has been implicated in cellular transformation or progression in various neoplasms.
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.