Diaminopimelic acid

CHEBI:23673 chemically defined MAPPED CHEBI SYNONYM_MATCH

Ontology mapping

Primary identifier
CHEBI:23673
Ontology label
2,6-diaminopimelic acid

Nutritional roles

Synonyms (1)

SynonymTypeSourceOccurrences
2,6-diaminoheptanedioic acid EXACT_SYNONYM chebi_synonym_review

Chemical properties

Cas rn
583-93-7
Data source
PubChem API
Retrieval date
2026-04-05T19:51:49.581961+00:00
Molecular formula
C7H14N2O4
Smiles
NC(CCCC(N)C(=O)O)C(=O)O
Inchi
InChI=1S/C7H14N2O4/c8-4(6(10)11)2-1-3-5(9)7(12)13/h4-5H,1-3,8-9H2,(H,10,11)(H,12,13)
Molecular weight
190.199

Evidence (1)

DATABASE_MATCH via CultureMech

Imported from CultureMech pipeline, quality=DIRECT_MATCH

Occurrence statistics

Total occurrences
6
Distinct media
6

Curation history

TimestampCuratorActionNew statusChanges
2026-03-09T06:54:18.022301+00:00 import_from_culturemech IMPORTED MAPPED Initial import from CultureMech pipeline
2026-04-05T19:51:49.582023+00:00 fetch_cas_rn_from_pubchem ADDED_CAS_RN MAPPED Added CAS-RN:583-93-7 from PubChem API via name lookup (Diaminopimelic acid)
2026-05-01T07:35:33.244828+00:00 auto_classify_ingredient_type AUTO_CLASSIFY_INGREDIENT_TYPE set ingredient_type=SINGLE_INGREDIENT (CHEBI primary)
2026-05-02T03:12:13.990556+00:00 auto_classify_ingredient_type AUTO_CLASSIFY_INGREDIENT_TYPE set ingredient_type=SINGLE_INGREDIENT (CHEBI primary)
2026-06-10T06:49:42.119070+00:00 fix_dead_chebi_ids.py CORRECTED identifier CHEBI:23674 -> CHEBI:23673 (2,6-diaminopimelic acid, source CHEBI): CHEBI:23674 is absent from current ChEBI (OLS4 404).
2026-06-14T06:54:43.083520+00:00 infer_roles_from_chebi_ancestry ANNOTATED Added media role: AMINO_ACID_SOURCE (confidence: 0.70)
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
2026-08-10T00:00:00+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 '2,6-diaminopimelic acid'; it matches the ChEBI synonym 'Diaminopimelic acid' on CHEBI:23673. 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).
2026-08-27T03:16:39.518728+00:00 refresh_occurrence_statistics CORRECTED occurrence_statistics 4/4 -> 6/6 (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]