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C4A

protein-coding gene in the species Homo sapiens
Gene gene Q17854107
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C4A

Summary

C4A is a gene[1]. C4A ranks in the top 2% of gene entities by monthly Wikipedia readership (29 views/month).[2]

Key Facts

  • C4A's instance of is recorded as gene[3].
  • C4A is a type of protein-coding gene[4].
  • C4A's Commons category is recorded as C4A[5].
  • C4A's HomoloGene ID is recorded as 36030[6].
  • C4A's genomic start is recorded as 31949801[7].
  • C4A's genomic start is recorded as 31982052[8].
  • C4A's genomic end is recorded as 32002681[9].
  • C4A's genomic end is recorded as 31970458[10].
  • C4A's ortholog is recorded as C4b[11].
  • C4A's ortholog is recorded as C4b[12].
  • C4A's ortholog is recorded as C4a[13].
  • C4A's ortholog is recorded as C4a[14].
  • C4A's ortholog is recorded as c4b[15].
  • C4A's encodes is recorded as complement C4A (Rodgers blood group)[16].
  • C4A's found in taxon is recorded as Homo sapiens[17].

Why It Matters

C4A ranks in the top 2% of gene entities by monthly Wikipedia readership (29 views/month).[2] C4A is known by 14 alternative names across languages and contexts.[18]

References

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

Direct Wikidata claims

  1. [3] ↑ . ensembl Release 106. wikidata.org.
  2. [4] ↑ . NCBI homo sapiens annotation release 107. Retrieved . wikidata.org.
  3. [5] ↑ . wikidata.org.
  4. [6] ↑ . Q20641742. Retrieved . wikidata.org.
  5. [7] ↑ . ensembl Release 106. wikidata.org.
  6. [8] ↑ . ensembl Release 106. wikidata.org.
  7. [9] ↑ . ensembl Release 106. wikidata.org.
  8. [10] ↑ . ensembl Release 106. wikidata.org.
  9. [11] ↑ . HomoloGene build68. omabrowser.org. Provenance: wikidata.org.
  10. [12] ↑ . HomoloGene build68. omabrowser.org. Provenance: wikidata.org.
  11. [13] ↑ . HomoloGene build68. omabrowser.org. Provenance: wikidata.org.
  12. [14] ↑ . HomoloGene build68. wikidata.org.
  13. [15] ↑ . HomoloGene build68. wikidata.org.
  14. [16] ↑ . Q905695. Retrieved . wikidata.org.
  15. [17] ↑ . ensembl Release 106. wikidata.org.

Class ancestry

  1. [1] ↑ . Wikidata. wikidata.org.

Aggregate / graph-position facts

  1. [2] ↑ . Wikimedia Foundation. dumps.wikimedia.org.
  2. [18] ↑ . Wikidata aliases. 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). C4A. Retrieved May 3, 2026, from https://4ort.xyz/entity/c4a
MLA “C4A.” 4ort.xyz Knowledge Graph, 4ort.xyz, 3 May. 2026, https://4ort.xyz/entity/c4a.
BibTeX @misc{4ortxyz_c4a_2026, author = {{4ort.xyz Knowledge Graph}}, title = {{C4A}}, year = {2026}, url = {https://4ort.xyz/entity/c4a}, note = {Accessed: 2026-05-03}}
LLM prompt According to 4ort.xyz Knowledge Graph (aggregator of Wikidata, Wikipedia, and authoritative open-data sources): C4A — https://4ort.xyz/entity/c4a (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. 2d ago · Mathieu Kappler · 2026-05-20 view diff on Wikidata ↗
    Genetic association → complement component 4a deficiency
    Subclass of → —
    Chromosome → human chromosome 6
    Strand orientation → forward strand
    + 8 other properties edited (see Wikidata diff for full list)
    "/* wbeditentity-update-languages-short:0||gsw */ QuickStatements 3.0 [[:toollabs:qs-dev/batch/32527|batch #32527]]: human gene name and description in Alemannic"
Live feed via Wikidata EventStreams. New edits appear within minutes of being made on Wikidata.