Interleukin-21 Receptor alpha Subunit

**Definition:** An interleukin-21 receptor subunit that combines with the INTERLEUKIN RECEPTOR COMMON GAMMA SUBUNIT to form a high affinity receptor for interleukin-21. It signals via interaction of its cytoplasmic domain with JANUS KINASES such as JANUS KINASE 1 and JANUS KINASE 3.

**Tree numbers:** - D12.776.543.750.705.852.420.900.450

**Synonyms:** - IL-21 Receptor alpha Chain - Interleukin-21 Receptor alpha Chain