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ProteinQ21113423· pop 13· linked from 482 articles

Interleukin 2 receptor subunit alpha

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Also known as TAC antigen, interleukin-2 receptor subunit alpha, p55, IL-2 receptor subunit alpha, IL2RA, IL-2R subunit alpha, interleukin 2 receptor, alpha, CD25

The interleukin-2 receptor alpha chain (also called Tac antigen, P55, and mainly CD25) is a protein involved in the assembly of the high-affinity interleukin-2 receptor, consisting of alpha (IL2RA), beta (IL2RB) and the common gamma chain (IL2RG). As the name indicates, this receptor interacts with interleukin-2, a pleiotropic cytokine which plays an important role in immune homeostasis.

Protein · UniProt

Interleukin-2 receptor subunit alpha

Gene
IL2RA
Organism
Homo sapiens (Human)
Length
272 aa
Molecular mass
30,819 Da
Evidence
1: Evidence at protein level

Receptor for interleukin-2. The receptor is involved in the regulation of immune tolerance by controlling regulatory T cells (TREGs) activity. TREGs suppress the activation and expansion of autoreactive T-cells

3D-structureDiabetes mellitusDisease variantDisulfide bondGlycoproteinImmunityMembraneProteomics identification
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Swiss-Prot (reviewed) · via UniProt

Clinical Trials

4 registered

via ClinicalTrials.gov

Wikidata facts

Instance of
protein
Show 1 more fact
found in taxon
Homo sapiens
Sources (3)

via Wikidata · CC0

~9 min read

Encyclopedic overview

10 sections
Contents
  • Genetics
  • Expression
  • Structure
  • Signalling cascade of interleukin-2 receptor
  • Clinical significance
  • CD25 as a biomarker
  • CD25 as a therapeutic target
  • References
  • Further reading
  • External links

The interleukin-2 receptor alpha chain (also called Tac antigen, P55, and mainly CD25) is a protein involved in the assembly of the high-affinity interleukin-2 receptor, consisting of alpha (IL2RA), beta (IL2RB) and the common gamma chain (IL2RG). As the name indicates, this receptor interacts with interleukin-2, a pleiotropic cytokine which plays an important role in immune homeostasis.

== Genetics == The human protein interleukin-2 receptor subunit alpha is encoded by a gene called IL2RA with a length around 51,6 kb. Alternative names for this protein coding gene are IL2R, IDDM10 and TCGFR. Location of IL2RA in human genome is on the short arm of 10th chromosome (10p15.1).

Excerpted from Wikipedia’s “Interleukin 2 receptor subunit alpha” article, available under the CC BY-SA 4.0 licence.