ENZYME is a repository of information relative to the nomenclature of enzymes. It is primarily based on the recommendations of the Nomenclature Committee of the International Union of Biochemistry and Molecular Biology (IUBMB) and it describes each type of characterized enzyme for which an EC (Enzyme Commission) number has been provided [More details / References].

A few EC numbers are preliminary, they include an 'n' as part of the fourth (serial) digit (e.g. EC 3.5.1.n3).

Release of 04-Nov-26 (7010 active entries)

Access to ENZYME

• by EC number:
• by enzyme class
• by description (official name) or alternative name(s):
• by chemical compound
• by search in comments lines

Documents

• ENZYME user manual

Services

• Report forms for a new ENZYME entry or for an error/update in an existing entry
• Downloading ENZYME by FTP

Related tools and databases

• Rhea - The reaction database providing reactions for ENZYME
• IUBMB ExplorEnz Enzyme database - The IUBMB Enzyme Nomenclature List
• BRENDA - Comprehensive Enzyme Information system
• KEGG - Kyoto Encyclopedia of Genes and Genomes
• MetaCyc - Metabolic Encyclopedia of enzymes and metabolic pathways