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Complement factor I

mammalian protein found in Homo sapiens
Protein protein Q5156413
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Complement factor I

Summary

Complement factor I is a protein[1].

Key Facts

  • Complement factor I's instance of is recorded as protein[2].
  • Complement factor I is part of LDL receptor-like superfamily[3].
  • Complement factor I is part of peptidase S1A, chymotrypsin family[4].
  • Complement factor I is part of Peptidase S1, PA clan[5].
  • Complement factor I is part of SRCR-like domain superfamily[6].
  • Complement factor I is part of Kazal domain superfamily[7].
  • Complement factor I is part of SRCR domain, protein family[8].
  • Complement factor I is part of Serine proteases, trypsin domain, protein family[9].
  • Complement factor I is part of Factor I / membrane attack complex, protein family[10].
  • Complement factor I is part of Kazal domain, protein family[11].
  • Complement factor I is part of Serine proteases, trypsin family, histidine active site, protein family[12].
  • Complement factor I is part of Low-density lipoprotein (LDL) receptor class A, conserved site, protein family[13].
  • Complement factor I is part of SRCR-like domain, protein family[14].
  • Complement factor I is part of Low-density lipoprotein (LDL) receptor class A repeat, protein family[15].
  • Complement factor I is part of Serine proteases, trypsin family, serine active site, protein family[16].
  • Complement factor I comprises SRCR domain[17].
  • Complement factor I comprises Kazal domain[18].
  • Complement factor I comprises Factor I / membrane attack complex[19].
  • Complement factor I comprises Low-density lipoprotein (LDL) receptor class A, conserved site[20].
  • Complement factor I comprises low-density lipoprotein (LDL) receptor class A repeat[21].
  • Complement factor I comprises SRCR-like domain[22].
  • Complement factor I comprises serine proteases, trypsin family, histidine active site[23].
  • Complement factor I comprises Serine proteases, trypsin family, serine active site[24].
  • Complement factor I comprises serine proteases, trypsin domain[25].
  • Complement factor I's molecular function is recorded as peptidase 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] ↑ . InterPro Release 71.0. ebi.ac.uk. Provenance: 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] ↑ . InterPro Release 71.0. ebi.ac.uk. Provenance: wikidata.org.
  6. [7] ↑ . InterPro Release 71.0. ebi.ac.uk. Provenance: wikidata.org.
  7. [8] ↑ . wikidata.org.
  8. [9] ↑ . wikidata.org.
  9. [10] ↑ . wikidata.org.
  10. [11] ↑ . wikidata.org.
  11. [12] ↑ . wikidata.org.
  12. [13] ↑ . wikidata.org.
  13. [14] ↑ . wikidata.org.
  14. [15] ↑ . wikidata.org.
  15. [16] ↑ . wikidata.org.
  16. [17] ↑ . InterPro Release 71.0. ebi.ac.uk. Provenance: wikidata.org.
  17. [18] ↑ . InterPro Release 71.0. ebi.ac.uk. Provenance: wikidata.org.
  18. [19] ↑ . InterPro Release 71.0. ebi.ac.uk. Provenance: wikidata.org.
  19. [20] ↑ . InterPro Release 71.0. ebi.ac.uk. Provenance: wikidata.org.
  20. [21] ↑ . InterPro Release 71.0. ebi.ac.uk. Provenance: wikidata.org.
  21. [22] ↑ . InterPro Release 71.0. ebi.ac.uk. Provenance: wikidata.org.
  22. [23] ↑ . InterPro Release 71.0. ebi.ac.uk. Provenance: wikidata.org.
  23. [24] ↑ . InterPro Release 71.0. ebi.ac.uk. Provenance: wikidata.org.
  24. [25] ↑ . InterPro Release 71.0. 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). Complement factor I. Retrieved May 3, 2026, from https://4ort.xyz/entity/complement-factor-i
MLA “Complement factor I.” 4ort.xyz Knowledge Graph, 4ort.xyz, 3 May. 2026, https://4ort.xyz/entity/complement-factor-i.
BibTeX @misc{4ortxyz_complement-factor-i_2026, author = {{4ort.xyz Knowledge Graph}}, title = {{Complement factor I}}, year = {2026}, url = {https://4ort.xyz/entity/complement-factor-i}, note = {Accessed: 2026-05-03}}
LLM prompt According to 4ort.xyz Knowledge Graph (aggregator of Wikidata, Wikipedia, and authoritative open-data sources): Complement factor I — https://4ort.xyz/entity/complement-factor-i (retrieved 2026-05-03)

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Edit History

Rolling log of changes to this entity's Wikidata record. Values shown reflect the current state of each edited property — follow the history link to see the precise diff for any edit.

  1. 4w ago · Boghog · 2026-07-23 view diff on Wikidata ↗
    Uniprot protein id → P05156
    Umls cui → C0110533
    Exact match → http://purl.uniprot.org/uniprot/P05156
    Imported from → —
    + 16 other properties edited (see Wikidata diff for full list)
    "/* wbcreateclaim-create:1| */ [[Property:P591]]: 3.4.21.45, [[:toollabs:quickstatements/#/batch/261457|batch #261457]]"
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