The CNX46-3 monoclonal antibody specifically binds to mouse CD160, also known as Natural Killer Cell Receptor BY55. CD160 is a glycosyolphosphatidylinositol-anchored membrane glycoprotein that contains a single Ig domain. This member of the Ig Superfamily was the first identified as a MHC Class I antigen-specific Ig-like Receptor that was expressed by mouse NK cells. As a receptor, CD160 can bind to classical and non-classical MHC class I molecules with low affinity. As a ligand, CD160 can bind to HVEM (Herpes Virus Entry Mediator, a TNF Receptor Family Member). CD160 is expressed on a subset of NK cells, NKT cells, activated CD8+ T cells and TCR γδ T cells. The functions of CD160 have been reported to regulate NK cell activation both positively and negatively, depending on stimulus.
The antibody was conjugated to BD Horizon™ BV711 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 711-nm. BD Horizon BV711 can be excited by the violet laser and detected in a filter used to detect Cy™5.5 / Alexa Fluor® 700-like dyes (eg, 712/20-nm filter). Due to the excitation and emission characteristics of the acceptor dye, there may be moderate spillover into the Alexa Fluor® 700 and PerCP-Cy5.5 detectors. However, the spillover can be corrected through compensation as with any other dye combination.