Ontology mapping
- Primary identifier
-
CHEBI:57912 - Ontology label
- L-tryptophan zwitterion
- kg-microbe node
CHEBI:57912
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 (4)
| Synonym | Type | Source | Occurrences |
|---|---|---|---|
| Role: Nitrogen source; Properties: Organic compound, Simple component, Defined component | RAW_TEXT | CultureMech | |
| Role: Nitrogen source; Properties: Simple component, Defined component, Organic compound | RAW_TEXT | CultureMech | |
| (2S)-2-ammonio-3-(1H-indol-3-yl)propanoate | EXACT_SYNONYM | kg_microbe | |
| (2S)-2-azaniumyl-3-(1H-indol-3-yl)propanoate | EXACT_SYNONYM | kg_microbe |
Chemical properties
- Data source
- PubChem API
- Retrieval date
- 2026-04-05T19:51:58.519606+00:00
- Molecular formula
- C11H12N2O2
- Inchi
- InChI=1S/C11H12N2O2/c12-9(11(14)15)5-7-6-13-10-4-2-1-3-8(7)10/h1-4,6,9,13H,5,12H2,(H,14,15)/t9-/m0/s1
- Smiles
- [NH3+][C@@H](Cc1cnc2ccccc12)C(=O)[O-]
Evidence (1)
DATABASE_MATCH
via CultureMech
Imported from CultureMech pipeline, quality=DIRECT_MATCH
Occurrence statistics
- Total occurrences
- 5
- Distinct media
- 5
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 |
| 2026-04-05T19:51:58.519688+00:00 | fetch_cas_rn_from_pubchem | ADDED_CAS_RN | MAPPED | Added CAS-RN:200-194-9 from PubChem API via name lookup (DL-Tryptophan) |
| 2026-04-18T00:00:00+00:00 | cbclaw_kg_microbe_sweep LLM | ADDED_SYNONYMS | MAPPED | Added 2 synonyms from kg-microbe P4.4 enrichment: (2S)-2-ammonio-3-(1H-indol-3-yl)propanoate, (2S)-2-azaniumyl-3-(1H-indol-3-yl)propanoate |
| 2026-05-01T07:35:33.376971+00:00 | auto_classify_ingredient_type | AUTO_CLASSIFY_INGREDIENT_TYPE | set ingredient_type=SINGLE_INGREDIENT (CHEBI primary) | |
| 2026-05-01T08:08:29.349447+00:00 | auto_classify_ingredient_type | AUTO_BACKFILL_CHEBI_CHEMISTRY | molecular_formula=C11H12N2O2; inchi=InChI=1S/C11H12N2O2/c12-9(11(14)15)5-7-6-13-10-4-2; smiles=[NH3+][C@@H](Cc1cnc2ccccc12)C(=O)[O-] | |
| 2026-05-02T03:12:14.160260+00:00 | auto_classify_ingredient_type | AUTO_CLASSIFY_INGREDIENT_TYPE | set ingredient_type=SINGLE_INGREDIENT (chemical structure populated (molecular_formula)) | |
| 2026-05-29T23:35:36.111022+00:00 | extract_roles_from_synonyms | ANNOTATED | Added media role: NITROGEN_SOURCE (confidence: 1.00) | |
| 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 | |
| 2026-08-10T00:00:00+00:00 | regrade_synonym_matches | REGRADED_EXACT_TO_SYNONYM | mapping_quality EXACT_MATCH -> SYNONYM_MATCH (#317). The record's label does not equal the term's primary label 'L-tryptophan zwitterion'; it matches the ChEBI synonym '(2S)-2-azaniumyl-3-(1H-indol-3-yl)propanoate' on CHEBI:57912. The schema defines EXACT_MATCH as a direct match to the term and SYNONYM_MATCH as a match to a known synonym, so the recorded grade overstated. ontology_id is unchanged — the term is correct. The SSSOM predicate is unaffected (both grades emit skos:exactMatch). | |
| 2026-08-27T03:16:39.518781+00:00 | refresh_occurrence_statistics | CORRECTED | occurrence_statistics 4/4 -> 5/5 (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] |