Interleukin 21

mammalian protein found in Rattus norvegicus
Protein protein Q28556020
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Interleukin 21

Summary

Interleukin 21 is a protein[1].

Key Facts

  • Interleukin 21's instance of is recorded as protein[2].
  • Interleukin 21's subclass of is recorded as protein[3].
  • Interleukin 21's UniProt protein ID is recorded as A3QPB9[4].
  • Interleukin 21's part of is recorded as four-helical cytokine-like, core[5].
  • Interleukin 21's RefSeq protein ID is recorded as NP_001102413[6].
  • Interleukin 21's molecular function is recorded as cytokine activity[7].
  • Interleukin 21's molecular function is recorded as cytokine receptor binding[8].
  • Interleukin 21's molecular function is recorded as interleukin-2 receptor binding[9].
  • Interleukin 21's molecular function is recorded as molecular function[10].
  • Interleukin 21's cell component is recorded as extracellular region[11].
  • Interleukin 21's cell component is recorded as extracellular space[12].
  • Interleukin 21's cell component is recorded as intracellular anatomical structure[13].
  • Interleukin 21's cell component is recorded as cellular component[14].
  • Interleukin 21's biological process is recorded as positive regulation of cytokine production[15].
  • Interleukin 21's biological process is recorded as immune response[16].
  • Interleukin 21's biological process is recorded as positive regulation of cell population proliferation[17].
  • Interleukin 21's biological process is recorded as positive regulation of B cell proliferation[18].
  • Interleukin 21's biological process is recorded as positive regulation of interleukin-17 production[19].
  • Interleukin 21's biological process is recorded as positive regulation of T cell proliferation[20].
  • Interleukin 21's biological process is recorded as positive regulation of natural killer cell mediated cytotoxicity[21].
  • Interleukin 21's biological process is recorded as cell maturation[22].
  • Interleukin 21's biological process is recorded as tyrosine phosphorylation of STAT protein[23].
  • Interleukin 21's biological process is recorded as positive regulation of tyrosine phosphorylation of STAT protein[24].
  • Interleukin 21's biological process is recorded as regulation of signaling receptor activity[25].
  • Interleukin 21's biological process is recorded as biological process[26].

References

Programmatic citations — every numbered marker resolves to a verifiable graph row below.

Direct Wikidata claims

  1. [2] . Q905695. Retrieved . wikidata.org.
  2. [3] . Q905695. Retrieved . wikidata.org.
  3. [4] . Q905695. Retrieved . wikidata.org.
  4. [5] . InterPro Release 71.0. ebi.ac.uk. Provenance: wikidata.org.
  5. [6] . Q20641742. Retrieved . wikidata.org.
  6. [7] . GOA. Retrieved . ebi.ac.uk. Provenance: wikidata.org.
  7. [8] . GOA. Retrieved . ebi.ac.uk. Provenance: wikidata.org.
  8. [9] . GOA. Retrieved . ebi.ac.uk. Provenance: wikidata.org.
  9. [10] . GOA. Retrieved . ebi.ac.uk. Provenance: wikidata.org.
  10. [11] . GOA. Retrieved . ebi.ac.uk. Provenance: wikidata.org.
  11. [12] . GOA. Retrieved . ebi.ac.uk. Provenance: wikidata.org.
  12. [13] . GOA. Retrieved . ebi.ac.uk. Provenance: wikidata.org.
  13. [14] . GOA. Retrieved . ebi.ac.uk. Provenance: wikidata.org.
  14. [15] . GOA. Retrieved . ebi.ac.uk. Provenance: wikidata.org.
  15. [16] . GOA. Retrieved . ebi.ac.uk. Provenance: wikidata.org.
  16. [17] . GOA. Retrieved . ebi.ac.uk. Provenance: wikidata.org.
  17. [18] . GOA. Retrieved . ebi.ac.uk. Provenance: wikidata.org.
  18. [19] . GOA. Retrieved . ebi.ac.uk. Provenance: wikidata.org.
  19. [20] . GOA. Retrieved . ebi.ac.uk. Provenance: wikidata.org.
  20. [21] . GOA. Retrieved . ebi.ac.uk. Provenance: wikidata.org.
  21. [22] . GOA. Retrieved . ebi.ac.uk. Provenance: wikidata.org.
  22. [23] . GOA. Retrieved . ebi.ac.uk. Provenance: wikidata.org.
  23. [24] . GOA. Retrieved . ebi.ac.uk. Provenance: wikidata.org.
  24. [25] . GOA. Retrieved . ebi.ac.uk. Provenance: wikidata.org.
  25. [26] . GOA. Retrieved . ebi.ac.uk. Provenance: wikidata.org.

Class ancestry

  1. [1] . Wikidata. wikidata.org.

📑 Cite this page

Use these citations when quoting this entity in research, articles, AI prompts, or wherever provenance matters. We aggregate Wikidata + Wikipedia + authoritative open-data sources; the stitched, scored, cross-referenced view is what 4ort.xyz contributes.

APA 4ort.xyz Knowledge Graph. (2026). Interleukin 21. Retrieved May 3, 2026, from https://4ort.xyz/entity/interleukin-21-q28556020
MLA “Interleukin 21.” 4ort.xyz Knowledge Graph, 4ort.xyz, 3 May. 2026, https://4ort.xyz/entity/interleukin-21-q28556020.
BibTeX @misc{4ortxyz_interleukin-21-q28556020_2026, author = {{4ort.xyz Knowledge Graph}}, title = {{Interleukin 21}}, year = {2026}, url = {https://4ort.xyz/entity/interleukin-21-q28556020}, note = {Accessed: 2026-05-03}}
LLM prompt According to 4ort.xyz Knowledge Graph (aggregator of Wikidata, Wikipedia, and authoritative open-data sources): Interleukin 21 — https://4ort.xyz/entity/interleukin-21-q28556020 (retrieved 2026-05-03)

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