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Interleukin-21 receptor

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Interleukin-21 receptor

Interleukin 21 receptor
Available structures
PDB Ortholog search: RCSB
Identifiers
IL21R Gene
RNA expression pattern

Interleukin 21 receptor is a type I cytokine receptor. IL21R is its human gene.[1]

The protein encoded by this gene is a cytokine receptor for interleukin 21 (IL21). It belongs to the type I cytokine receptors, and has been shown to form a heterodimeric receptor complex with the common gamma-chain, a receptor subunit also shared by the receptors for interleukin 2 (IL2) and interleukin 5 (IL5). This receptor transduces the growth promoting signal of IL21, and is important for the proliferation and differentiation of T cells, B cells, and natural killer (NK) cells. The ligand binding of this receptor leads to the activation of multiple downstream signaling molecules, including JAK1, JAK3, STAT1, and STAT3. Knockout studies of a similar gene in mouse suggest a role for this gene in regulating immunoglobulin production. Three alternatively spliced transcript variants encoding the same protein have been described.[1]

References

Further reading


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