Statistics for release 117 (2021-02-10)

The number of reactions given here is the number of reaction quartets.

Unique reactions: 13,362

Unique reaction participants: 11,638

Reaction participants help_outline
Type Participants Reactions
Small molecule (ChEBI) 9,860 13,307
Macromolecule (Rhea) 1,547 2,405
Polymer (Rhea) 231 272
Reactions by status help_outline
Approved 13,340
Preliminary 22
Reactions by qualifier
Chemically balanced 13,352
Transport 593
Linked database records
Database Data type Origin Unique database IDs Links Total reactions
EcoCyc Reaction Curated 1,522 1,565 1,546
MetaCyc Reaction Curated 7,916 8,228 8,068
Reactome Reaction Computed via ChEBI IDs 859 906 591
KEGG Reaction Curated 6,452 6,586 6,557
Enzyme EC number Curated 5,786 7,204 6,945
PubMed Bibliographic citation Curated 15,322 28,582 12,256
ChEBI Compound Curated 10,810 64,441 13,362