Ontology mapping
- Primary identifier
-
CHEBI:15971 - Ontology label
- L-histidine
- kg-microbe node
CHEBI:15971
Nutritional roles
- Role
- NITROGEN_SOURCE
- Confidence
- 1.0
- Evidence
- Reference type
- DATABASE_ENTRY
- Reference text
- Imported from CultureMech pipeline
- Curator note
- Original role text: Nitrogen Source
Synonyms (11)
| Synonym | Type | Source | Occurrences |
|---|---|---|---|
| Cross-references: KEGG:his-L | RAW_TEXT | CultureMech | |
| Role: Nitrogen source; Properties: Defined component, Organic compound, Simple component | RAW_TEXT | CultureMech | |
| Role: Nitrogen source; Properties: Defined component, Simple component, Organic compound | RAW_TEXT | CultureMech | |
| (2S)-2-amino-3-(1H-imidazol-4-yl)propanoic acid | EXACT_SYNONYM | kg_microbe | |
| (S)-4-(2-Amino-2-carboxyethyl)imidazole | EXACT_SYNONYM | kg_microbe | |
| (S)-alpha-Amino-1H-imidazole-4-propionic acid | EXACT_SYNONYM | kg_microbe | |
| (S)-alpha-amino-1H-Imidazole-4-propanoic acid | EXACT_SYNONYM | kg_microbe | |
| L-(-)-histidine | EXACT_SYNONYM | kg_microbe | |
| L-Histidin | EXACT_SYNONYM | kg_microbe | |
| Histidine | EXACT_SYNONYM | merged_from_duplicate_mim_record | |
| Role: Nitrogen source; Properties: Organic compound, Defined component, Simple component | RAW_TEXT | CultureMech |
Chemical properties
- Cas rn
- 71-00-1
- Data source
- CultureBotHT compounds_to_cas.csv
- Retrieval date
- 2026-04-05T21:48:45.265334+00:00
- Molecular formula
- C6H9N3O2
- Inchi
- InChI=1S/C6H9N3O2/c7-5(6(10)11)1-4-2-8-3-9-4/h2-3,5H,1,7H2,(H,8,9)(H,10,11)/t5-/m0/s1
- Smiles
- N[C@@H](Cc1cncn1)C(=O)O
Evidence (1)
DATABASE_MATCH
via CultureMech
Imported from CultureMech pipeline, quality=DIRECT_MATCH
Occurrence statistics
- Total occurrences
- 154
- Distinct media
- 154
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 |
| 2026-04-05T19:52:39.494681+00:00 | fetch_cas_rn_from_pubchem | ADDED_CAS_RN | MAPPED | Added CAS-RN:71-00-1 from PubChem API via name lookup (L-Histidin) |
| 2026-04-05T21:48:45.265336+00:00 | fetch_cas_rn_from_culturebot_csv | ADDED_CAS_RN | MAPPED | Added CAS-RN:71-00-1 from CultureBotHT compounds_to_cas.csv (matched: L-Histidine) |
| 2026-04-09T00:32:50.689620+00:00 | enrich_mim_cas_rn_batch | CAS_RN_ADDED | MAPPED | Added CAS-RN 4998-57-6 from PubChem (via CHEBI:27570) |
| 2026-04-18T00:00:00+00:00 | cbclaw_kg_microbe_sweep LLM | ADDED_SYNONYMS | MAPPED | Added 6 synonyms from kg-microbe P4.4 enrichment: (2S)-2-amino-3-(1H-imidazol-4-yl)propanoic acid, (S)-4-(2-Amino-2-carboxyethyl)imidazole, (S)-alpha-Amino-1H-imidazole-4-propionic acid, (S)-alpha-amino-1H-Imidazole-4-propanoic acid, L-(-)-histidine, ... (1 more) |
| 2026-04-18T00:00:00+00:00 | cbclaw_kg_microbe_sweep LLM | ADDED_SYNONYMS | MAPPED | Added 5 synonyms from kg-microbe P4.4 enrichment: 2-amino-3-(1H-imidazol-4-yl)propanoic acid, DL-Histidine, Histidin, alpha-Amino-1H-imidazole-4-propionic acid, histidina |
| 2026-04-18T00:00:00+00:00 | cbclaw_kg_microbe_sweep LLM | ADDED_SYNONYMS | MAPPED | Added 5 synonyms from kg-microbe P4.4 enrichment: (2S)-2-amino-3-(1H-imidazol-4-yl)propanoic acid, (S)-4-(2-Amino-2-carboxyethyl)imidazole, (S)-alpha-Amino-1H-imidazole-4-propionic acid, (S)-alpha-amino-1H-Imidazole-4-propanoic acid, L-(-)-histidine |
| 2026-04-19T01:05:11.447498+00:00 | cbclaw_sssom_review_fix | CORRECTED_ONTOLOGY_ID | MAPPED | Corrected ontology_id CHEBI:27570 -> CHEBI:15971 (old label: 'Histidine', new label: 'L-histidine'). Reason: Previous CHEBI:27676 was L-histidinal (aldehyde), not L-histidine. Stripped 5 kg_microbe-sourced synonyms that were contaminated by the wrong CHEBI. |
| 2026-04-19T07:39:40.088622+00:00 | audit_mim_merge | MERGED_FROM_DUPLICATES | MAPPED | Absorbed 2 duplicate MIM record(s) into this one: Histidine.yaml, L-histidin.yaml. Synonyms, curation_history, and occurrence counts were unioned/summed; winner selected by highest occurrence count with preferred_term readability tie-break. |
| 2026-04-19T07:39:40.088267+00:00 | audit_resolve_risky_cas_rn | RESOLVED_CAS_RN_CONFLICT | MAPPED | CAS-RN conflict across merged group (4998-57-6|71-00-1) resolved via OAK canonical xref: 71-00-1 (match) |
| 2026-05-01T07:35:34.363484+00:00 | auto_classify_ingredient_type | AUTO_CLASSIFY_INGREDIENT_TYPE | set ingredient_type=SINGLE_INGREDIENT (CHEBI primary) | |
| 2026-05-01T08:08:30.372507+00:00 | auto_classify_ingredient_type | AUTO_BACKFILL_CHEBI_CHEMISTRY | molecular_formula=C6H9N3O2; inchi=InChI=1S/C6H9N3O2/c7-5(6(10)11)1-4-2-8-3-9-4/h2-3,; smiles=N[C@@H](Cc1cncn1)C(=O)O | |
| 2026-05-02T03:12:15.528366+00:00 | auto_classify_ingredient_type | AUTO_CLASSIFY_INGREDIENT_TYPE | set ingredient_type=SINGLE_INGREDIENT (chemical structure populated (molecular_formula)) | |
| 2026-05-29T23:35:36.111646+00:00 | extract_roles_from_synonyms | ANNOTATED | Added media role: NITROGEN_SOURCE (confidence: 1.00) | |
| 2026-06-09T05:23:46.785181+00:00 | correct_stale_ontology_labels.py | CORRECTED | ontology_label 'L-Histidine' -> 'L-histidine': synced to canonical CHEBI label (preferred_term 'L-Histidine' unchanged). | |
| 2026-07-20T00:00:00+00:00 | migrate_media_roles_to_facets | ANNOTATED | Migrated legacy media_roles to role facets (#128): NITROGEN_SOURCE -> nutritional_roles.NITROGEN_SOURCE | |
| 2026-08-27T03:16:39.519143+00:00 | refresh_occurrence_statistics | CORRECTED | occurrence_statistics 82/103 -> 154/154 (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] |