About CD161
Natural killer (NK) cells are lymphocytes that mediate cytotoxicity and secrete cytokines after immune stimulation. Several genes of the C-type lectin superfamily, including the rodent NKRP1 family of glycoproteins, are expressed by NK cells and may be involved in the regulation of NK cell function. The KLRB1 protein contains an extracellular domain with several motifs characteristic of C-type lectins, a transmembrane domain, and a cytoplasmic domain. The KLRB1 protein is classified as a type II membrane protein because it has an external C terminus. [provided by RefSeq, Jul 2008]

About Spark YG 581
Spark YG™ 581 from Biolegend is a fluorophore designed for spectral flow cytometry with an excitation peak at 565 nm and an emission peak at 581 nm. This fluorophore is an alternative to Alexa Fluor™ 568 and efficiently excited by the 561 nm laser with minimal cross-beam excitation by the 488 nm laser.