L-Tryptophan

CHEBI:16828 chemically defined MAPPED CHEBI EXACT_MATCH

Ontology mapping

Primary identifier
CHEBI:16828
Ontology label
L-tryptophan
kg-microbe node
CHEBI:16828

Nutritional roles

Synonyms (9)

SynonymTypeSourceOccurrences
Cross-references: KEGG:trp-L RAW_TEXT CultureMech
Role: Nitrogen source; Properties: Defined component, Organic compound, Simple component RAW_TEXT CultureMech
(2S)-2-amino-3-(1H-indol-3-yl)propanoic acid EXACT_SYNONYM kg_microbe
(S)-alpha-Amino-beta-(3-indolyl)-propionic acid EXACT_SYNONYM kg_microbe
(S)-alpha-amino-1H-indole-3-propanoic acid EXACT_SYNONYM kg_microbe
(S)-tryptophan EXACT_SYNONYM kg_microbe
L-(-)-tryptophan EXACT_SYNONYM kg_microbe
L-beta-3-indolylalanine EXACT_SYNONYM kg_microbe
Tryptophan EXACT_SYNONYM chebi_synonym_review

Chemical properties

Cas rn
73-22-3
Data source
PubChem API
Retrieval date
2026-04-05T19:52:45.060964+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
N[C@@H](Cc1cnc2ccccc12)C(=O)O

Evidence (1)

DATABASE_MATCH via CultureMech

Imported from CultureMech pipeline, quality=DIRECT_MATCH

Occurrence statistics

Total occurrences
100
Distinct media
100

Curation history

TimestampCuratorActionNew statusChanges
2026-03-09T06:54:18.022301+00:00 import_from_culturemech IMPORTED MAPPED Initial import from CultureMech pipeline
2026-04-05T19:52:45.061007+00:00 fetch_cas_rn_from_pubchem ADDED_CAS_RN MAPPED Added CAS-RN:73-22-3 from PubChem API via name lookup (L-Tryptophan)
2026-04-05T21:48:45.284100+00:00 fetch_cas_rn_from_culturebot_csv ADDED_CAS_RN MAPPED Added CAS-RN:73-22-3 from CultureBotHT compounds_to_cas.csv (matched: L-tryptophan)
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-indol-3-yl)propanoic acid, (S)-alpha-Amino-beta-(3-indolyl)-propionic acid, (S)-alpha-amino-1H-indole-3-propanoic acid, (S)-tryptophan, L-(-)-tryptophan, ... (1 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: L-tryptophan_2.yaml. Synonyms, curation_history, and occurrence counts were unioned/summed; winner selected by highest occurrence count with preferred_term readability tie-break.
2026-05-01T07:35:34.413325+00:00 auto_classify_ingredient_type AUTO_CLASSIFY_INGREDIENT_TYPE set ingredient_type=SINGLE_INGREDIENT (CHEBI primary)
2026-05-01T08:08:30.428845+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=N[C@@H](Cc1cnc2ccccc12)C(=O)O
2026-05-02T03:12:15.596147+00:00 auto_classify_ingredient_type AUTO_CLASSIFY_INGREDIENT_TYPE set ingredient_type=SINGLE_INGREDIENT (chemical structure populated (molecular_formula))
2026-05-29T23:35:36.111681+00:00 extract_roles_from_synonyms ANNOTATED Added media role: NITROGEN_SOURCE (confidence: 1.00)
2026-06-09T05:23:46.786222+00:00 correct_stale_ontology_labels.py CORRECTED ontology_label 'L-Tryptophan' -> 'L-tryptophan': synced to canonical CHEBI label (preferred_term 'L-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
2026-08-27T03:16:39.519176+00:00 refresh_occurrence_statistics CORRECTED occurrence_statistics 51/54 -> 100/100 (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]