Merge pull request #1136 from OBOFoundry/chebi-additional-metadata

chebi metadata

Author: cmungall

ontology/chebi.md

@@ -20,6 +20,10 @@ license:
 domain: biochemistry
 homepage: http://www.ebi.ac.uk/chebi
 page: http://www.ebi.ac.uk/chebi/init.do?toolBarForward=userManual
+depicted_by: https://www.ebi.ac.uk/chebi/images/ChEBI_logo.png
+publications:
+  - id: http://europepmc.org/article/MED/26467479
+    title: "ChEBI in 2016: Improved services and an expanding collection of metabolites."
 browsers:
   - label: CHEBI
     title: EBI CHEBI Browser
@@ -34,7 +38,28 @@ products:
   - id: chebi/chebi_core.obo
     title: "chebi_core, no xrefs"
 tracker: https://github.com/ebi-chebi/ChEBI/issues
+usages:
+  - user: https://www.rhea-db.org/
+    description: Rhea uses CHEBI to annotate reaction participants
+    examples:
+      - url: https://www.rhea-db.org/searchresults?q=CHEBI:29748
+        description: "Query for all usages of CHEBI:29748 (chorismate)"
+  - user: http://zfin.org
+    description: ZFIN uses CHEBI to annotate experiments
+    examples:
+      - url: http://zfin.org/action/expression/experiment?id=ZDB-EXP-190627-10
+        description: "A curated zebrafish experiment involving exposure to (5Z,8Z,14Z)-11,12-dihydroxyicosatrienoic acid (CHEBI:63969)"
 activity_status: active
 ---
 
-A structured classification of chemical compounds of biological relevance.
+A freely available dictionary of molecular entities focused on ‘small’ chemical compounds.
+The term ‘molecular entity’ refers to any constitutionally or isotopically distinct atom, molecule, ion, ion pair, radical, radical ion, complex, conformer, etc., identifiable as a separately distinguishable entity. The molecular entities in question are either products of nature or synthetic products used to intervene in the processes of living organisms.
+
+ChEBI incorporates an ontological classification, whereby the relationships between molecular entities or classes of entities and their parents and/or children are specified.
+
+ChEBI uses nomenclature, symbolism and terminology endorsed by the following international scientific bodies:
+
+- International Union of Pure and Applied Chemistry (IUPAC)
+- Nomenclature Committee of the International Union of Biochemistry and Molecular Biology (NC-IUBMB)
+
+Molecules directly encoded by the genome (e.g. nucleic acids, proteins and peptides derived from proteins by cleavage) are not as a rule included in ChEBI.