About CD169
This gene encodes a member of the immunoglobulin superfamily. The encoded protein is a lectin-like adhesion molecule that binds glycoconjugate ligands on cell surfaces in a sialic acid-dependent manner. It is a type I transmembrane protein expressed only by a subpopulation of macrophages and is involved in mediating cell-cell interactions. Alternative splicing produces a transcript variant encoding an isoform that is soluble rather than membrane-bound; however, the full-length nature of this variant has not been determined. [provided by RefSeq, Jul 2008]

About APC-eFluor 780
APC-eFluor™ 780 (APC-eF780) is a red-emitting tandem fluorophore of APC, excited by the 640 nm red laser and transfers energy to the acceptor, eF780, which emits light that can be captured with a 780/60 nm bandpass filter. APC-eF780 has an excitation peak at 645 nm and an emission peak at 767 nm, and is spectrally similar to APC-CF®750 (Biotium), APC-Cy® 7 (GE Healthcare) APC-H7 (BD Biosciences), APC-eFluor™ 780 (ThermoFisher Scientific), APC-Vio®770 (Miltenyi Biotec) and APC-Fire™ 750 (BioLegend). This dye is part of the larger eFluor™ dye family, developed by eBioscience which is now part of ThermoFisher Scientific.