K2S4O6 — MIM

Ontology mapping

Primary identifier: CHEBI:86466
Ontology label: potassium tetrathionate
kg-microbe node: CHEBI:86466

Cellular metabolic roles

Role
ELECTRON_DONOR
Confidence
0.6
Evidence
- Reference type
  COMPUTATIONAL_PREDICTION
  Reference text
  Assigned by in-session Claude reasoning (no external API)
  Curator note
  Provisional in-session LLM role assignment; review recommended.
- Reference type
  PEER_REVIEWED_PUBLICATION
  Doi
  10.1007/s11274-010-0441-4
  Url
  https://scholarworks.montana.edu/server/api/core/bitstreams/178af696-e5b3-47aa-a0e1-182a47ab782a/content
  Reference text
  Aston et al. (2011). Growth effects and assimilation of organic acids in chemostat and batch cultures of Acidithiobacillus caldus.
  Curator note
  The study explicitly supplies potassium tetrathionate as the electron donor in autotrophic and mixotrophic cultures. This supports the named organism and culture conditions, not universal microbial utilization.
Metabolic context
Electron donor during aerobic growth of Acidithiobacillus caldus in the studied tetrathionate-supplemented mineral medium.

Synonyms (5)

Synonym	Type	Source
Properties: Defined component, Inorganic compound, Simple component	RAW_TEXT	CultureMech
Properties: Defined component, Simple component, Inorganic compound	RAW_TEXT	CultureMech
Dipotassium tetrathionate	EXACT_SYNONYM	kg_microbe
Potassium tetrathionate	EXACT_SYNONYM	kg_microbe
Tetrathionic acid, dipotassium salt	EXACT_SYNONYM	kg_microbe

Chemical properties

Cas rn: 13932-13-3
Data source: PubChem (via CHEBI:86466)
Retrieval date: 2026-04-09T00:32:50.689620+00:00
Molecular formula: 2K.O6S4
Inchi: InChI=1S/2K.H2O6S4/c;;1-9(2,3)7-8-10(4,5)6/h;;(H,1,2,3)(H,4,5,6)/q2*+1;/p-2
Smiles: O=S(=O)([O-])SSS(=O)(=O)[O-].[K+].[K+]

Evidence (1)

DATABASE_MATCH via CultureMech

Imported from CultureMech pipeline, quality=DIRECT_MATCH

Occurrence statistics

Total occurrences: 28
Distinct media: 28

Curation history

Timestamp	Curator	Action	New status	Changes
2026-03-09T06:54:18.022301+00:00	import_from_culturemech	IMPORTED	MAPPED	Initial import from CultureMech pipeline
2026-04-09T00:32:50.689620+00:00	enrich_mim_cas_rn_batch	CAS_RN_ADDED	MAPPED	Added CAS-RN 13932-13-3 from PubChem (via CHEBI:86466)
2026-04-18T00:00:00+00:00	cbclaw_kg_microbe_sweep LLM	ADDED_SYNONYMS	MAPPED	Added 3 synonyms from kg-microbe P4.4 enrichment: Dipotassium tetrathionate, Potassium tetrathionate, Tetrathionic acid, dipotassium salt
2026-04-18T00:00:00+00:00	cbclaw_kg_microbe_sweep LLM	ADDED_SYNONYMS	MAPPED	Added 3 synonyms from kg-microbe P4.4 enrichment: Dipotassium tetrathionate, K2S4O6, Tetrathionic acid, dipotassium salt
2026-04-19T07:39:23.955331+00:00	audit_mim_merge	MERGED_FROM_DUPLICATES	MAPPED	Absorbed 1 duplicate MIM record(s) into this one: Potassium_Tetrathionate.yaml. Synonyms, curation_history, and occurrence counts were unioned/summed; winner selected by highest occurrence count with preferred_term readability tie-break.
2026-05-01T07:35:34.158844+00:00	auto_classify_ingredient_type	AUTO_CLASSIFY_INGREDIENT_TYPE		set ingredient_type=SINGLE_INGREDIENT (CHEBI primary)
2026-05-01T08:08:30.155675+00:00	auto_classify_ingredient_type	AUTO_BACKFILL_CHEBI_CHEMISTRY		molecular_formula=2K.O6S4; inchi=InChI=1S/2K.H2O6S4/c;;1-9(2,3)7-8-10(4,5)6/h;;(H,1; smiles=O=S(=O)([O-])SSS(=O)(=O)[O-].[K+].[K+]
2026-05-02T03:12:15.242267+00:00	auto_classify_ingredient_type	AUTO_CLASSIFY_INGREDIENT_TYPE		set ingredient_type=SINGLE_INGREDIENT (chemical structure populated (molecular_formula))
2026-06-09T04:56:30.247980+00:00	claude_in_session_curation	ANNOTATED		Added media role: ELECTRON_DONOR (confidence: 0.60)
2026-07-20T00:00:00+00:00	migrate_media_roles_to_facets	ANNOTATED		Migrated legacy media_roles to role facets (#128): ELECTRON_DONOR -> cellular_metabolic_roles.ELECTRON_DONOR
2026-08-27T03:16:39.519052+00:00	refresh_occurrence_statistics	CORRECTED		occurrence_statistics 19/19 -> 28/28 (media_count/total_occurrences), derived from distinct CultureMech recipe ids in the #337 occurrence table. The prior values came from the importer retired in #453, whose media_count counted a list truncated to 50 examples (#449). [source=ingredient_occurrences.tsv culturemech_rev=15a4da5c08 rows=194137 distinct_recipes=15257]
2026-09-22T02:06:34+00:00	codex_issue_710_semantic_evidence_review LLM	CORRECTED_ROLE_EVIDENCE		Added inspected primary-publication support and bounded organism/condition context to the cellular metabolic role (#710). Retained original computational provenance and confidence. See reports/semantic_review_20260921/resolution/roles/cellular-role-plan.json for the assertion-specific interpretation.