Ontology mapping
- Primary identifier
-
CHEBI:16643 - Ontology label
- L-methionine
- kg-microbe node
CHEBI:16643
Nutritional roles
- Role
- AMINO_ACID_SOURCE
- Confidence
- 0.7
- Evidence
- Reference type
- COMPUTATIONAL_PREDICTION
- Reference text
- Inferred from CHEBI ancestry: subclass/has_role of CHEBI:33709 (amino acid)
- Curator note
- Provisional role inferred from CHEBI is_a/has_role closure; review recommended.
Synonyms (10)
| Synonym | Type | Source | Occurrences |
|---|---|---|---|
| Cross-references: KEGG:met-L | RAW_TEXT | CultureMech | |
| Role: Nitrogen source | RAW_TEXT | CultureMech | |
| (2S)-2-amino-4-(methylsulfanyl)butanoic acid | EXACT_SYNONYM | kg_microbe | |
| (S)-2-amino-4-(methylthio)butanoic acid | EXACT_SYNONYM | kg_microbe | |
| (S)-2-amino-4-(methylthio)butyric acid | EXACT_SYNONYM | kg_microbe | |
| (S)-methionine | EXACT_SYNONYM | kg_microbe | |
| L-(-)-methionine | EXACT_SYNONYM | kg_microbe | |
| L-Methionin | EXACT_SYNONYM | kg_microbe | |
| L-alpha-amino-gamma-methylmercaptobutyric acid | EXACT_SYNONYM | kg_microbe | |
| METHIONINE | EXACT_SYNONYM | chebi_synonym_review |
Chemical properties
- Cas rn
- 63-68-3
- Data source
- PubChem API
- Retrieval date
- 2026-04-05T19:52:41.810675+00:00
- Molecular formula
- C5H11NO2S
- Inchi
- InChI=1S/C5H11NO2S/c1-9-3-2-4(6)5(7)8/h4H,2-3,6H2,1H3,(H,7,8)/t4-/m0/s1
- Smiles
- CSCC[C@H](N)C(=O)O
Evidence (1)
DATABASE_MATCH
via CultureMech
Imported from CultureMech pipeline, quality=DIRECT_MATCH
Occurrence statistics
- Total occurrences
- 127
- Distinct media
- 127
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 |
| 2026-04-05T19:52:41.810723+00:00 | fetch_cas_rn_from_pubchem | ADDED_CAS_RN | MAPPED | Added CAS-RN:63-68-3 from PubChem API via name lookup (L-Methionine) |
| 2026-04-18T00:00:00+00:00 | cbclaw_kg_microbe_sweep LLM | ADDED_SYNONYMS | MAPPED | Added 7 synonyms from kg-microbe P4.4 enrichment: (2S)-2-amino-4-(methylsulfanyl)butanoic acid, (S)-2-amino-4-(methylthio)butanoic acid, (S)-2-amino-4-(methylthio)butyric acid, (S)-methionine, L-(-)-methionine, ... (2 more) |
| 2026-05-01T07:35:34.385724+00:00 | auto_classify_ingredient_type | AUTO_CLASSIFY_INGREDIENT_TYPE | set ingredient_type=SINGLE_INGREDIENT (CHEBI primary) | |
| 2026-05-01T08:08:30.397897+00:00 | auto_classify_ingredient_type | AUTO_BACKFILL_CHEBI_CHEMISTRY | molecular_formula=C5H11NO2S; inchi=InChI=1S/C5H11NO2S/c1-9-3-2-4(6)5(7)8/h4H,2-3,6H2,; smiles=CSCC[C@H](N)C(=O)O | |
| 2026-05-02T03:12:15.557203+00:00 | auto_classify_ingredient_type | AUTO_CLASSIFY_INGREDIENT_TYPE | set ingredient_type=SINGLE_INGREDIENT (chemical structure populated (molecular_formula)) | |
| 2026-05-30T00:34:39.494301+00:00 | infer_roles_from_chebi_ancestry | ANNOTATED | Added media role: AMINO_ACID_SOURCE (confidence: 0.70) | |
| 2026-06-09T05:23:46.785649+00:00 | correct_stale_ontology_labels.py | CORRECTED | ontology_label 'L-Methionine' -> 'L-methionine': synced to canonical CHEBI label (preferred_term 'L-Methionine' unchanged). | |
| 2026-07-20T00:00:00+00:00 | migrate_media_roles_to_facets | ANNOTATED | Migrated legacy media_roles to role facets (#128): AMINO_ACID_SOURCE -> nutritional_roles.AMINO_ACID_SOURCE | |
| 2026-08-27T03:16:39.519159+00:00 | refresh_occurrence_statistics | CORRECTED | occurrence_statistics 50/69 -> 127/127 (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] |