BRENDA Enzymology Database

BRENDA - The Comprehensive Enzyme Information System.

Enzyme Portal - European Bioinformatics Institute

Enzyme Portal integrates web services for functional and structural enzyme data.

Expasy - ENZYME

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).

IUBMB Enzyme Nomenclature

Recommendations of the Nomenclature Committee of the International Union of Biochemistry and Molecular Biology.