The CW10 monoclonal antibody specifically binds to HVEM (Herpes virus entry mediator). HVEM is also known as CD270, Tumor necrosis factor receptor-like 2 (TR2), or LIGHT Receptor (LIGHT-R). CD270 is a type I transmembrane protein and member of the TNF Receptor superfamily. It is encoded by TNFRSF14 (tumor necrosis factor receptor superfamily member 14). CD270 is expressed on T cells, B cells, NK cells, monocytes, granulocytes, and some dendritic cells. CD270 binds to Lymphotoxin α (LTa3/TNFβ), CD258/LIGHT, CD272/BTLA, and glycoprotein D of Herpes simplex viruses HSV-1 and HSV-2. CD270-LIGHT interactions can reportedly transduce costimulatory signals for T cells whereas CD270-BTLA interactions can deliver inhibitory signals to T cells.
The antibody was conjugated to BD Horizon BUV615 which is part of the BD Horizon Brilliant™ Ultraviolet family of dyes. This dye is a tandem fluorochrome with an Ex Max near 350 nm and an Em Max near 615 nm. BD Horizon Brilliant BUV615 can be excited by the ultraviolet laser (355 nm) and detected with a 610/20 filter and a 595 nm LP. Due to the excitation of the acceptor dye by the blue/yellow-green laser line, there may be significant spillover into channels detecting PE-CF594 like emissions (eg, 610/20-nm filter).