The Enzyme Database

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About ExplorEnz

ExplorEnz is the approved International Union of Biochemistry and Molecular Biology (IUBMB) Enzyme nomenclature and classification list. It was developed at Trinity College Dublin in 2005 as a new way to access the data of the IUBMB Enzyme Nomenclature List. The data, which are stored in a MySQL database, preserve the formatting of chemical names according to IUPAC standards. A simple, easy to use, web-based query interface is provided (Search), along with an advanced search engine for more complex queries (Advanced Search).

ExplorEnz is developed and maintained by Andrew McDonald.ORCID iD icon

Please use the forms provided to submit suggestions for new enzyme entries or to report errors in existing entries.

Downloads of the database are available as SQL or XML. The IUBMB Enzyme List is also published as a set of PDFs.

Citing ExplorEnz

McDonald, A.G., Boyce, S. and Tipton, K.F. ExplorEnz: the primary source of the IUBMB enzyme list. Nucleic Acids Res. 37, D593–D597 (2009). [DOI: 10.1093/nar/gkn582]

Financial support from the IUBMB and FEBS for the maintenance of ExplorEnz during 2024 is gratefully acknowledged.