About CD45
The protein encoded by this gene is a member of the protein tyrosine phosphatase (PTP) family. PTPs are known to be signaling molecules that regulate a variety of cellular processes including cell growth, differentiation, mitosis, and oncogenic transformation. This PTP contains an extracellular domain, a single transmembrane segment and two tandem intracytoplasmic catalytic domains, and thus is classified as a receptor type PTP. This PTP has been shown to be an essential regulator of T- and B-cell antigen receptor signaling. It functions through either direct interaction with components of the antigen receptor complexes, or by activating various Src family kinases required for the antigen receptor signaling. This PTP also suppresses JAK kinases, and thus functions as a regulator of cytokine receptor signaling. Alternatively spliced transcripts variants of this gene, which encode distinct isoforms, have been reported. [provided by RefSeq, Jun 2012]

About Brilliant Ultraviolet 395
Brilliant™ UltraViolet 395 (BUV395) is a UV-emitting base polymer dye that can be excited by the 355 nm ultraViolet laser and collected using a 379/28 bandpass filter. BUV395 has an excitation peak at 348 nm and an emission peak at 395. BUV395's fairly unique excitation and emission spectrum causes relatively little spillover into other common detectors and conflicts with very few other commonly used fluorophores. An alternative to BUV395 for flow cytometry is StarBright UltraViolet 400. This dye is part of the Brilliant™ UltraViolet dye family, developed and sold by BD Biosciences. These dyes were optimized for use with multicolor flow cytometry. BUV395 forms the backbone of the family, as all other members are tandems that use it as the acceptor, thus making them excitable by the same 355 nm UV laser.