The TUGh4 monoclonal antibody specifically binds to CD132. CD132 is a 65-70 kDa type 1 transmembrane glycoprotein that is encoded by the IL2RG (interleukin 2 receptor, gamma) gene. CD132 is also known as the common γ subunit (γc) and is shared by the IL-2, IL-4, IL-7, IL-9, IL-15 and IL-21 receptor complexes. CD132 is broadly expressed by most peripheral T and B lymphocytes, NK cells, monocytes, and granulocytes. The cytoplasmic domain of the γc chain plays an important role in cytokine-mediated signal transduction. Mutation of the IL2RG gene results in X-linked severe combined immunodeficiency (XSCID). The TUGh4 antibody recognizes a different epitope from that recognized by the CD132-specific clone, AG184.
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).