Serine protease 21

mammalian protein found in Homo sapiens
Protein protein Q21134309
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Serine protease 21

Summary

Serine protease 21 is a protein[1].

Key Facts

  • Serine protease 21's instance of is recorded as protein[2].
  • Serine protease 21's UniProt protein ID is recorded as Q9Y6M0[3].
  • Serine protease 21's part of is recorded as Testisin[4].
  • Serine protease 21's part of is recorded as Peptidase S1, PA clan[5].
  • Serine protease 21's part of is recorded as membrane protein[6].
  • Serine protease 21's part of is recorded as Serine proteases, trypsin domain, protein family[7].
  • Serine protease 21's part of is recorded as Serine proteases, trypsin family, histidine active site, protein family[8].
  • Serine protease 21's part of is recorded as Serine proteases, trypsin family, serine active site, protein family[9].
  • Serine protease 21's has part is recorded as serine proteases, trypsin family, histidine active site[10].
  • Serine protease 21's has part is recorded as serine proteases, trypsin domain[11].
  • Serine protease 21's has part is recorded as Serine proteases, trypsin family, serine active site[12].
  • Serine protease 21's RefSeq protein ID is recorded as NP_001257381[13].
  • Serine protease 21's RefSeq protein ID is recorded as NP_006790[14].
  • Serine protease 21's RefSeq protein ID is recorded as NP_659205[15].
  • Serine protease 21's RefSeq protein ID is recorded as NP_659206[16].
  • Serine protease 21's RefSeq protein ID is recorded as XP_016878364[17].
  • Serine protease 21's RefSeq protein ID is recorded as XP_016878365[18].
  • Serine protease 21's RefSeq protein ID is recorded as XP_016878366[19].
  • Serine protease 21's RefSeq protein ID is recorded as XP_016878367[20].
  • Serine protease 21's molecular function is recorded as peptidase activity[21].
  • Serine protease 21's molecular function is recorded as serine-type peptidase activity[22].
  • Serine protease 21's molecular function is recorded as protein binding[23].
  • Serine protease 21's molecular function is recorded as hydrolase activity[24].
  • Serine protease 21's molecular function is recorded as serine-type endopeptidase activity[25].
  • Serine protease 21's molecular function is recorded as serine-type endopeptidase activity[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] . InterPro Release 71.0. ebi.ac.uk. Provenance: wikidata.org.
  4. [5] . InterPro Release 71.0. ebi.ac.uk. Provenance: wikidata.org.
  5. [6] . wikidata.org.
  6. [7] . wikidata.org.
  7. [8] . wikidata.org.
  8. [9] . wikidata.org.
  9. [10] . InterPro Release 71.0. ebi.ac.uk. Provenance: wikidata.org.
  10. [11] . InterPro Release 71.0. ebi.ac.uk. Provenance: wikidata.org.
  11. [12] . InterPro Release 71.0. ebi.ac.uk. Provenance: wikidata.org.
  12. [13] . Q20641742. Retrieved . wikidata.org.
  13. [14] . Q20641742. Retrieved . wikidata.org.
  14. [15] . Q20641742. Retrieved . wikidata.org.
  15. [16] . Q20641742. Retrieved . wikidata.org.
  16. [17] . Q20641742. Retrieved . wikidata.org.
  17. [18] . Q20641742. Retrieved . wikidata.org.
  18. [19] . Q20641742. Retrieved . wikidata.org.
  19. [20] . Q20641742. Retrieved . wikidata.org.
  20. [21] . GOA. Retrieved . ebi.ac.uk. Provenance: wikidata.org.
  21. [22] . Testisin, a new human serine proteinase expressed by premeiotic testicular germ cells and lost in testicular germ cell tumors. Retrieved . ebi.ac.uk. Provenance: wikidata.org.
  22. [23] . Interaction of testisin with maspin and its impact on invasion and cell death resistance of cervical cancer cells. 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). Serine protease 21. Retrieved May 3, 2026, from https://4ort.xyz/entity/serine-protease-21
MLA “Serine protease 21.” 4ort.xyz Knowledge Graph, 4ort.xyz, 3 May. 2026, https://4ort.xyz/entity/serine-protease-21.
BibTeX @misc{4ortxyz_serine-protease-21_2026, author = {{4ort.xyz Knowledge Graph}}, title = {{Serine protease 21}}, year = {2026}, url = {https://4ort.xyz/entity/serine-protease-21}, note = {Accessed: 2026-05-03}}
LLM prompt According to 4ort.xyz Knowledge Graph (aggregator of Wikidata, Wikipedia, and authoritative open-data sources): Serine protease 21 — https://4ort.xyz/entity/serine-protease-21 (retrieved 2026-05-03)

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