Complement component 2, isoform CRA_b

human protein (annotated by UniProtKB/TrEMBL Q5JP69)
Protein Protein Q21141108

Facts

8 properties
Instance of
protein
Part of
von Willebrand factor A-like domain superfamily, Peptidase S1, PA clan, complement C2, Sushi/SCR/CCP superfamily, Sushi/SCR/CCP domain, protein family, von Willebrand factor, type A, protein family, Serine proteases, trypsin domain, protein family, Serine proteases, trypsin family, histidine active site, protein family, Serine proteases, trypsin family, serine active site, protein family[2][3][4][5][6][7][8][9][10]
Biological process
complement activation, response to nutrient, proteolysis, complement activation, classical pathway[21][22]
Encoded by
C2
Found in taxon
Homo sapiens
Has part(s)
serine proteases, trypsin domain, sushi/SCR/CCP domain, serine proteases, trypsin family, histidine active site, Serine proteases, trypsin family, serine active site, von Willebrand factor, type A[11][12][13][14][15]
Molecular function
peptidase activity, serine-type peptidase activity, serine-type endopeptidase activity, hydrolase activity[16][17][18][19]
🏷️ Also known as
en Complement component 2, isoform CRA_b
🔖 Identifiers · 3
PDB structure ID
2ODQ
RefSeq protein ID
NP_000054.2
UniProt protein ID
Q5JP69

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Summary

Complement component 2, isoform CRA_b is a protein[1].

References

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

Direct Wikidata claims

  1. [2] ↑ . InterPro Release 71.0. ebi.ac.uk. Provenance: 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] ↑ . wikidata.org.
  6. [7] ↑ . wikidata.org.
  7. [8] ↑ . wikidata.org.
  8. [9] ↑ . wikidata.org.
  9. [10] ↑ . 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] ↑ . InterPro Release 71.0. ebi.ac.uk. Provenance: wikidata.org.
  13. [14] ↑ . InterPro Release 71.0. ebi.ac.uk. Provenance: wikidata.org.
  14. [15] ↑ . InterPro Release 71.0. 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.

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 component 2, isoform CRA_b. Retrieved May 3, 2026, from https://4ort.xyz/entity/complement-component-2-isoform-cra-b
MLA “Complement component 2, isoform CRA_b.” 4ort.xyz Knowledge Graph, 4ort.xyz, 3 May. 2026, https://4ort.xyz/entity/complement-component-2-isoform-cra-b.
BibTeX @misc{4ortxyz_complement-component-2-isoform-cra-b_2026, author = {{4ort.xyz Knowledge Graph}}, title = {{Complement component 2, isoform CRA_b}}, year = {2026}, url = {https://4ort.xyz/entity/complement-component-2-isoform-cra-b}, note = {Accessed: 2026-05-03}}
LLM prompt According to 4ort.xyz Knowledge Graph (aggregator of Wikidata, Wikipedia, and authoritative open-data sources): Complement component 2, isoform CRA_b — https://4ort.xyz/entity/complement-component-2-isoform-cra-b (retrieved 2026-05-03)

Canonical URL: https://4ort.xyz/entity/complement-component-2-isoform-cra-b · Last refreshed: