IL-15R alpha Protein, the high-affinity receptor for interleukin-15, crucially signals in cis and trans, presenting IL-15 to neighboring IL2RG-expressing cells. In neutrophils, it activates SYK kinase, essential for IL-15-induced phagocytosis in a SYK-dependent manner. IL-15R alpha forms a heterotrimer with IL2RB and IL2RG, capable of self-association. Interactions with SYK underscore its intricate involvement in cellular signaling pathways. IL-15R alpha & IL-15 Protein, Mouse (HEK293, His) is a recombinant protein dimer complex containing mouse-derived IL-15R alpha & IL-15 protein, expressed by HEK293 , with C-His labeled tag. IL-15R alpha & IL-15 Protein, Mouse (HEK293, His), has molecular weight of ~36 kDa.