About CD28
The protein encoded by this gene is essential for T-cell proliferation and survival, cytokine production, and T-helper type-2 development. Several alternatively spliced transcript variants encoding different isoforms have been found for this gene.[provided by RefSeq, Jul 2011]

About NovaFluor Blue 660 / 120S
The NovaFluor family of fluorescent polymers from Thermo Fisher Scientific are a novel reagent for traditional and spectral flow cytometry. These fluorophores are comprised of a DNA backbone polymer integrated with fluorophore substituted nucleosides to create a potent donor molecule. Tandem fluophores with long Stokes' Shift enable brighter, spectrally discrete, tunable fluorescent polymers as an alternative to traditional simple organic structures, protein-based fluorophores as well as the Horizon Brilliant™ family of fluorescent polymers from BD. NovaFluor Blue 660/120S is designed to be discreetly excited by the 488 nm laser and has an excitation peak at 496 nm and an emission peak at 665 nm. NovaFluor Blue 660 120S is larger and brighter than NovaFluor Blue 660/ 40S.