The 16.1 monoclonal antibody recognizes the C57BL/6 mouse CD161a, CD161b, and CD161c (CD161a, b, c) cell surface molecules, which are also known as Natural killer cell receptor P1A (NKRP1A), NKRP1D, and NKRP1C, respectively. These cell surface molecules are expressed by natural killer (NK) cells and may play a role in NK cell functions. The 16.1 antibody does not crossreact with CD161f (NKRP1F). This antibody likely binds to CD161 molecules expressed by lymphoid cells from some other mouse strains.
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).