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photosystem I

class of protein complexes, the second protein complex in photosynthetic light reactions
Thing cellular_component Q4339518
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photosystem I

Summary

photosystem I is a cellular component[1]. It draws 94 Wikipedia views per month (cellular_component category, ranking #71 of 301).[2]

Key Facts

  • photosystem I's instance of is recorded as cellular component[3].
  • photosystem I's instance of is recorded as group or class of enzymes[4].
  • photosystem I's subclass of is recorded as photosystem[5].
  • photosystem I's subclass of is recorded as oxidoreductase[6].
  • photosystem I's subclass of is recorded as electron carrier[7].
  • photosystem I's Commons category is recorded as Plant photosystem I[8].
  • photosystem I's MeSH descriptor ID is recorded as D045331[9].
  • photosystem I's EC enzyme number is recorded as 1.97.1.12[10].
  • photosystem I's Freebase ID is recorded as /m/05_5tw9[11].
  • photosystem I's MeSH tree code is recorded as D05.500.562.488.500[12].
  • photosystem I's MeSH tree code is recorded as D08.811.600.710.500[13].
  • photosystem I's MeSH tree code is recorded as D12.776.157.530.450.250.875.492[14].
  • photosystem I's MeSH tree code is recorded as D12.776.543.585.450.250.875.492[15].
  • photosystem I's MeSH tree code is recorded as D12.776.543.930.500.500[16].
  • photosystem I's MeSH tree code is recorded as D12.776.765.199.750.750.500[17].
  • photosystem I's molecular function is recorded as electron transfer activity[18].
  • photosystem I's Gene Ontology ID is recorded as GO:0009522[19].
  • photosystem I's Encyclopædia Britannica Online ID is recorded as science/photosystem-I[20].
  • photosystem I's exact match is recorded as http://purl.obolibrary.org/obo/GO_0009522[21].
  • photosystem I's Microsoft Academic ID is recorded as 154828652[22].
  • photosystem I's OpenAlex ID is recorded as C154828652[23].
  • photosystem I's Springer Nature Subjects Taxonomy ID is recorded as photosystem-i[24].

Why It Matters

photosystem I draws 94 Wikipedia views per month (cellular_component category, ranking #71 of 301).[2] It has Wikipedia articles in 12 language editions, a strong signal of global cultural recognition.[25] It is known by 4 alternative names across languages and contexts.[26]

References

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

Direct Wikidata claims

  1. [3] ↑ . Gene Ontology release 2019-10-07. Retrieved . wikidata.org.
  2. [4] ↑ . wikidata.org.
  3. [5] ↑ . Gene Ontology release 2019-10-07. Retrieved . wikidata.org.
  4. [6] ↑ . Retrieved . Provenance: wikidata.org.
  5. [7] ↑ . wikidata.org.
  6. [8] ↑ . wikidata.org.
  7. [9] ↑ . wikidata.org.
  8. [10] ↑ . wikidata.org.
  9. [11] ↑ . Freebase Data Dumps. wikidata.org.
  10. [12] ↑ . wikidata.org.
  11. [13] ↑ . wikidata.org.
  12. [14] ↑ . wikidata.org.
  13. [15] ↑ . wikidata.org.
  14. [16] ↑ . wikidata.org.
  15. [17] ↑ . wikidata.org.
  16. [18] ↑ . InterPro release 2019-Nov-12. wikidata.org.
  17. [19] ↑ . Gene Ontology release 2019-10-07. Retrieved . wikidata.org.
  18. [20] ↑ . wikidata.org.
  19. [21] ↑ . Gene Ontology release 2019-10-07. Retrieved . wikidata.org.
  20. [22] ↑ . wikidata.org.
  21. [23] ↑ . OpenAlex. Retrieved . docs.openalex.org. Provenance: wikidata.org.
  22. [24] ↑ . wikidata.org.

Class ancestry

  1. [1] ↑ . Wikidata. wikidata.org.

Aggregate / graph-position facts

  1. [2] ↑ . Wikimedia Foundation. dumps.wikimedia.org.
  2. [25] ↑ . Wikidata sitelinks. wikidata.org.
  3. [26] ↑ . 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). photosystem I. Retrieved May 3, 2026, from https://4ort.xyz/entity/photosystem-i
MLA “photosystem I.” 4ort.xyz Knowledge Graph, 4ort.xyz, 3 May. 2026, https://4ort.xyz/entity/photosystem-i.
BibTeX @misc{4ortxyz_photosystem-i_2026, author = {{4ort.xyz Knowledge Graph}}, title = {{photosystem I}}, year = {2026}, url = {https://4ort.xyz/entity/photosystem-i}, note = {Accessed: 2026-05-03}}
LLM prompt According to 4ort.xyz Knowledge Graph (aggregator of Wikidata, Wikipedia, and authoritative open-data sources): photosystem I — https://4ort.xyz/entity/photosystem-i (retrieved 2026-05-03)

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