About CD44
The protein encoded by this gene is a cell-surface glycoprotein involved in cell-cell interactions, cell adhesion and migration. It is a receptor for hyaluronic acid (HA) and can also interact with other ligands, such as osteopontin, collagens, and matrix metalloproteinases (MMPs). This protein participates in a wide variety of cellular functions including lymphocyte activation, recirculation and homing, hematopoiesis, and tumor metastasis. Transcripts for this gene undergo complex alternative splicing that results in many functionally distinct isoforms, however, the full length nature of some of these variants has not been determined. Alternative splicing is the basis for the structural and functional diversity of this protein, and may be related to tumor metastasis. [provided by RefSeq, Jul 2008]

About SuperBright 645
SuperBright 645 (SB645) is a fluorescent polymer with an excitation peak at 414 nm and an emission peak at 645 nm. SB645 is spectrally similar to StarBright Violet 670 and BV650. This dye is a member of the SuperBright dye family, sold by ThermoFisher Scientific under license from BD Bioscience.