The 455807 monoclonal antibody specifically recognizes CD151, which is also known as Platelet-Endothelial Tetraspan Antigen 3 (PETA-3). CD151 is a member of the Tetraspanin or Transmembrane 4 superfamily (TM4SF). Like most tetraspaninins, CD151 regulates cell migration, interactions, and signaling by forming complexes with other membrane molecules, such as integrins and other tetraspanins. CD151 is expressed on many types of cells, including endothelial and epithelial cells, megakaryocytes and platelets, but not on lymphoid 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.