The J4-117 monoclonal antibody specifically recognizes CD72. CD72 is a 39-43 kDa type II integral membrane protein that belongs to the C-type lectin superfamily. CD72 is expressed on B cells from early precursor stages through mature B cells. CD72 is not expressed on plasma cells. CD72 is also expressed on follicular dendritic reticulum cells and some macrophages. CD72 has been reported to bind to CD5, a glycoprotein expressed on all mature T cells and a subpopulation of B cells, suggesting a role in regulating T- and B-cell activation and proliferation.
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.