IL-15 receptor (IL-15R) composed of IL-15Ralpha, IL-2/15Rbeta (CD122), and gamma(c) (CD132) subunits []. IL-15 is a cytokine that plays an important role in innate and adaptive immunity []. Syk kinase interacts with IL-15Ralpha and may play a key role in mediating IL-15-induced signal transduction [].