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CD9 molecule

mammalian protein found in Rattus norvegicus
Protein protein Q28556634
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CD9 molecule

Summary

CD9 molecule is a protein[1].

Key Facts

  • CD9 molecule's instance of is recorded as protein[2].
  • CD9 molecule's UniProt protein ID is recorded as P40241[3].
  • CD9 molecule's part of is recorded as tetraspanin[4].
  • CD9 molecule's part of is recorded as Tetraspanin, EC2 domain superfamily[5].
  • CD9 molecule's part of is recorded as membrane protein[6].
  • CD9 molecule's part of is recorded as Tetraspanin, conserved site, protein family[7].
  • CD9 molecule's has part is recorded as Tetraspanin, conserved site[8].
  • CD9 molecule's RefSeq protein ID is recorded as NP_444177[9].
  • CD9 molecule's molecular function is recorded as integrin binding[10].
  • CD9 molecule's molecular function is recorded as protein binding[11].
  • CD9 molecule's cell component is recorded as extracellular region[12].
  • CD9 molecule's cell component is recorded as plasma membrane[13].
  • CD9 molecule's cell component is recorded as integral component of plasma membrane[14].
  • CD9 molecule's cell component is recorded as external side of plasma membrane[15].
  • CD9 molecule's cell component is recorded as cell surface[16].
  • CD9 molecule's cell component is recorded as membrane[17].
  • CD9 molecule's cell component is recorded as integral component of membrane[18].
  • CD9 molecule's cell component is recorded as apical plasma membrane[19].
  • CD9 molecule's cell component is recorded as extracellular exosome[20].
  • CD9 molecule's biological process is recorded as cell adhesion[21].
  • CD9 molecule's biological process is recorded as cell surface receptor signaling pathway[22].
  • CD9 molecule's biological process is recorded as single fertilization[23].
  • CD9 molecule's biological process is recorded as fusion of sperm to egg plasma membrane involved in single fertilization[24].
  • CD9 molecule's biological process is recorded as brain development[25].
  • CD9 molecule's biological process is recorded as negative regulation of cell population proliferation[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] ↑ . InterPro Release 71.0. ebi.ac.uk. Provenance: wikidata.org.
  8. [9] ↑ . Q20641742. Retrieved . wikidata.org.
  9. [10] ↑ . Cell surface tetraspanin Tspan8 contributes to molecular pathways of exosome-induced endothelial cell activation. Retrieved . ebi.ac.uk. Provenance: wikidata.org.
  10. [11] ↑ . The major CD9 and CD81 molecular partner. Identification and characterization of the complexes. 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] ↑ . Phylogenetic-based propagation of functional annotations within the Gene Ontology consortium. Retrieved . ebi.ac.uk. Provenance: wikidata.org.
  14. [15] ↑ . GOA. Retrieved . ebi.ac.uk. Provenance: wikidata.org.
  15. [16] ↑ . CD9, a major platelet cell surface glycoprotein, is a ROCA antigen and is expressed in the nervous system. 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] ↑ . Tetraspanin CD81 is required for the alpha v beta5-integrin-dependent particle-binding step of RPE phagocytosis. 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] ↑ . Phylogenetic-based propagation of functional annotations within the Gene Ontology consortium. 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] ↑ . Characterization of rat NCA/CD9 cell surface antigen and its expression by normal and malignant neural cells. Retrieved . ebi.ac.uk. Provenance: wikidata.org.
  25. [26] ↑ . GOA. Retrieved . ebi.ac.uk. Provenance: wikidata.org.

Class ancestry

  1. [1] ↑ . Wikidata. wikidata.org.

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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). CD9 molecule. Retrieved May 3, 2026, from https://4ort.xyz/entity/cd9-molecule-q28556634
MLA “CD9 molecule.” 4ort.xyz Knowledge Graph, 4ort.xyz, 3 May. 2026, https://4ort.xyz/entity/cd9-molecule-q28556634.
BibTeX @misc{4ortxyz_cd9-molecule-q28556634_2026, author = {{4ort.xyz Knowledge Graph}}, title = {{CD9 molecule}}, year = {2026}, url = {https://4ort.xyz/entity/cd9-molecule-q28556634}, note = {Accessed: 2026-05-03}}
LLM prompt According to 4ort.xyz Knowledge Graph (aggregator of Wikidata, Wikipedia, and authoritative open-data sources): CD9 molecule — https://4ort.xyz/entity/cd9-molecule-q28556634 (retrieved 2026-05-03)

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