About CD221
This receptor binds insulin-like growth factor with a high affinity. It has tyrosine kinase activity. The insulin-like growth factor I receptor plays a critical role in transformation events. Cleavage of the precursor generates alpha and beta subunits. It is highly overexpressed in most malignant tissues where it functions as an anti-apoptotic agent by enhancing cell survival. Alternatively spliced transcript variants encoding distinct isoforms have been found for this gene. [provided by RefSeq, May 2014]

About Alexa Fluor 350
Alexa Fluor™ 350 (AF350, Alexa 350) has an excitation peak at 346 nm and an emission peak at 442 nm, and is spectrally similar in size, brightness and application to AMCA, DyLight™ 350 and CF®350. Alexa 350 is most commonly used in flow cytometery and fluorescence microscopy applications.