About CD23
The protein encoded by this gene is a B-cell specific antigen, and a low-affinity receptor for IgE. It has essential roles in B cell growth and differentiation, and the regulation of IgE production. This protein also exists as a soluble secreted form, then functioning as a potent mitogenic growth factor. Alternatively spliced transcript variants encoding different isoforms have been described for this gene.[provided by RefSeq, Jul 2011]

About Pacific Blue
Pacific Blue® (Pac Blue, PacBlue) is a blue-emitting organic fluorophore that can be excited by the 405 nm Violet laser and captured with a 450/50 nm bandpass filter. Pacific Blue has an excititaion peak at 401 nm and an emission peak at 452 nm.