Description
Product Characteristics: The IL-21 receptor (IL-21R) is structurally related to IL-2R and IL-15R. In addition, these receptors, together with IL-4R, IL-7R, and IL-9R, share a common gamma -chain. IL-21R appears in T, natural killer (NK), B, and dendritic cells (DC), and it plays an important role in the regulation and function of these cells. IL-21 has, however, an effect on NK cells depending on their activation state. It enhances the proliferation and cytotoxic activity of activated NK cells, but in these cells, IL-21 also promotes apoptosis and thus limits NK cell response. In contrast, IL-21 inhibits IL-15-induced proliferation and maturation of NK cell precursors
Target Information: This gene encodes a transcription factor that is a member of the leucine zipper family of DNA binding proteins. This protein binds as a homodimer to the cAMP-responsive element, an octameric palindrome. The protein is phosphorylated by several protein kinases, and induces transcription of genes in response to hormonal stimulation of the cAMP pathway. Alternate splicing of this gene results in two transcript variants encoding different isoforms. [provided by RefSeq, Jul 2008]