The M-T605 monoclonal antibody specifically binds to CD6. CD6 is a 100-130 kDa type I transmembrane glycoprotein present on more than 80% of mature T cells and a subset of B cells. CD6 is also weakly expressed on cortical thymocytes. CD6 binds to CD166 and reportedly plays roles in cellular adhesion, costimulation of T lymphocyte proliferation, and the regulation of lymphocyte apoptosis. The antibody is useful for investigation of CD6+ B-cell function.
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.