The OX-52 monoclonal antibody specifically recognizes CD6, a 95-120–kDa antigen expressed on T lymphocytes and thymocytes expressing αβ and γδ Tcell receptors. Rat NK cells express low levels of CD6 and are CD8a+, CD8b-, CD5-, and CD3-. In immunoprecipitation experiments, CD6 has been shown to co-precipitate with CD5 and to play a key role in CD5 tyrosine phosphorylation.
The antibody was conjugated to BD Horizon™ BV510 which is part of the BD Horizon Brilliant™ Violet family of dyes. With an Ex Max of 405-nm and Em Max at 510-nm, BD Horizon BV510 can be excited by the violet laser and detected in the BD Horizon V500 (525/50-nm) filter set. BD Horizon BV510 conjugates are useful for the detection of dim markers off the violet laser.