About CD8b
The CD8 antigen is a cell surface glycoprotein found on most cytotoxic T lymphocytes that mediates efficient cell-cell interactions within the immune system. The CD8 antigen, acting as a coreceptor, and the T-cell receptor on the T lymphocyte recognize antigens displayed by an antigen presenting cell (APC) in the context of class I MHC molecules. The functional coreceptor is either a homodimer composed of two alpha chains, or a heterodimer composed of one alpha and one beta chain. Both alpha and beta chains share significant homology to immunoglobulin variable light chains. This gene encodes the CD8 beta chain isoforms. Multiple alternatively spliced transcript variants encoding distinct membrane associated or secreted isoforms have been described. A pseudogene, also located on chromosome 2, has been identified. [provided by RefSeq, May 2010]

About Brilliant Violet 510
Brilliant™ Violet 510 (BV510) is a green-emitting non-tandem polymer fluorophore that can be excited by the 405 nm Violet laser and collected using a 510/50 bandpass filter. BV510 has an excitation peak at 405 nm and an emission peak at 510 nm, and is similar to StarBright Violet 515 (Bio-Rad). BV510 is most often used in flow cytometry due to its improved signal-to-noise over alternatives like V500 and AmCyan. This dye is part of the Brilliant™ Violet dye line. BV510 and BV480 are the only dyes in the Brilliant™ Violet dye family that are not tandem fluorophores based off the BV421 polymer core, but they have nearly the same maximum excitation.