Tryptophan

CHEBI:27897 chemically defined MAPPED CHEBI EXACT_MATCH

Ontology mapping

Primary identifier
CHEBI:27897
Ontology label
tryptophan

Nutritional roles

Synonyms (9)

SynonymTypeSourceOccurrences
Role: Nitrogen source; Properties: Organic compound, Defined component, Simple component RAW_TEXT CultureMech
2-amino-3-(1H-indol-3-yl)propanoic acid EXACT_SYNONYM kg_microbe
Htrp EXACT_SYNONYM kg_microbe
alpha-Amino-beta-(3-indolyl)-propionic acid EXACT_SYNONYM kg_microbe
alpha-amino-beta-3-indolepropionic acid EXACT_SYNONYM kg_microbe
beta-3-indolylalanine EXACT_SYNONYM kg_microbe
triptofano EXACT_SYNONYM kg_microbe
tryptophane EXACT_SYNONYM kg_microbe
Role: Nitrogen source; Properties: Defined component, Organic compound, Simple component RAW_TEXT CultureMech

Chemical properties

Cas rn
73-22-3
Data source
PubChem API
Retrieval date
2026-04-05T19:54:09.428332+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)
Smiles
NC(Cc1cnc2ccccc12)C(=O)O

Evidence (1)

DATABASE_MATCH via CultureMech

Imported from CultureMech pipeline, quality=DIRECT_MATCH

Occurrence statistics

Total occurrences
38
Distinct media
38

Curation history

TimestampCuratorActionNew statusChanges
2026-03-09T06:54:18.022301+00:00 import_from_culturemech IMPORTED MAPPED Initial import from CultureMech pipeline
2026-04-05T19:54:09.428382+00:00 fetch_cas_rn_from_pubchem ADDED_CAS_RN MAPPED Added CAS-RN:73-22-3 from PubChem API via name lookup (Tryptophan)
2026-04-05T23:47:09.873882+00:00 fetch_cas_rn_with_preprocessing ADDED_CAS_RN MAPPED Added CAS-RN:73-22-3 from PubChem API (ontology label) via name preprocessing (tryptophan)
2026-04-18T00:00:00+00:00 cbclaw_kg_microbe_sweep LLM ADDED_SYNONYMS MAPPED Added 7 synonyms from kg-microbe P4.4 enrichment: 2-amino-3-(1H-indol-3-yl)propanoic acid, Htrp, alpha-Amino-beta-(3-indolyl)-propionic acid, alpha-amino-beta-3-indolepropionic acid, beta-3-indolylalanine, ... (2 more)
2026-04-19T07:39:23.955331+00:00 audit_mim_merge MERGED_FROM_DUPLICATES MAPPED Absorbed 1 duplicate MIM record(s) into this one: Tryptophan_2.yaml. Synonyms, curation_history, and occurrence counts were unioned/summed; winner selected by highest occurrence count with preferred_term readability tie-break.
2026-05-01T07:35:36.771242+00:00 auto_classify_ingredient_type AUTO_CLASSIFY_INGREDIENT_TYPE set ingredient_type=SINGLE_INGREDIENT (CHEBI primary)
2026-05-01T08:08:32.853200+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=NC(Cc1cnc2ccccc12)C(=O)O
2026-05-02T03:12:19.063981+00:00 auto_classify_ingredient_type AUTO_CLASSIFY_INGREDIENT_TYPE set ingredient_type=SINGLE_INGREDIENT (chemical structure populated (molecular_formula))
2026-05-29T23:35:36.113274+00:00 extract_roles_from_synonyms ANNOTATED Added media role: NITROGEN_SOURCE (confidence: 1.00)
2026-06-09T05:23:46.847195+00:00 correct_stale_ontology_labels.py CORRECTED ontology_label 'Tryptophan' -> 'tryptophan': synced to canonical CHEBI label (preferred_term 'Tryptophan' 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
2026-08-27T03:16:39.520028+00:00 refresh_occurrence_statistics CORRECTED occurrence_statistics 35/35 -> 38/38 (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]