Medical Definition of E classification
1.
Classification of enzymes based on the recommendations of the Committee on Enzyme Nomenclature of the International Union of Biochemistry.
The first number indicates the broad type of enzyme (1 = oxidoreductase, 2 = transferase, 3 = hydrolase, 4 = lyase, 5 = isomerase, 6 = ligase (synthetase)).
The second and third numbers indicate subsidiary groupings and the last number, which is unique, is assigned arbitrarily in numerical order by the Committee.
(08 Mar 2000)
Lexicographical Neighbors of E Classification
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