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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 has Wikipedia articles in 12 language editions, a strong signal of global cultural recognition.[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 is a type of photosystem[5].
  • photosystem I is a type of oxidoreductase[6].
  • photosystem I is a type of electron carrier[7].
  • photosystem I's Commons category is recorded as Plant photosystem I[8].
  • photosystem I's EC enzyme number is recorded as 1.97.1.12[9].
  • photosystem I's molecular function is recorded as electron transfer activity[10].
  • photosystem I's exact match is recorded as http://purl.obolibrary.org/obo/GO_0009522[11].

Body

Definition and Type

Recorded instance of include cellular component[3] and group or class of enzymes[4]. Recorded subclass of include photosystem[5], oxidoreductase[6], and electron carrier[7].

Why It Matters

photosystem I has Wikipedia articles in 12 language editions, a strong signal of global cultural recognition.[2] It is known by 4 alternative names across languages and contexts.[12]

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] ↑ . InterPro release 2019-Nov-12. wikidata.org.
  9. [11] ↑ . Gene Ontology release 2019-10-07. Retrieved . wikidata.org.

Class ancestry

  1. [1] ↑ . Wikidata. wikidata.org.

Aggregate / graph-position facts

  1. [2] ↑ . Wikidata sitelinks. wikidata.org.
  2. [12] ↑ . 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)

Canonical URL: https://4ort.xyz/entity/photosystem-i · Last refreshed:

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. 6d ago · Dirac · 2026-07-20 view diff on Wikidata ↗
    Molecular function → electron transfer activity
    Subclass of → —
    Instance of → cellular component, group or class of enzymes
    Image → Photosystem I.jpg
    + 3 other properties edited (see Wikidata diff for full list)
    "/* wbcreateclaim-create:1| */ [[Property:P18]]: Photosystem I.jpg, [[:toollabs:quickstatements/#/batch/261337|batch #261337]]"
Live feed via Wikidata EventStreams. New edits appear within minutes of being made on Wikidata.