Lyase
Lyases are enzymes of the fourth class of enzymes according to the systematic nomenclature of enzyme Commission of the International Union of Biochemistry (IUB ) and catalyze a cleavage of the molecule. Lyases are present in all living things. Reaction Scheme:
Lyases produce a non - hydrolytic cleavage of a molecule into two products, usually with the formation of a double bond or a ring structure.
Classification
Lyases are in the EC numbers classification system under EC 4 -. -. - Categorized. Then lyases are further subdivided depending on what type of bond is cleaved:
Other enzyme classes
- Oxidoreductases ( EC 1 -. -. - )
- Transferases ( EC 2 -. -. - )
- Hydrolases ( EC 3 -. -. - )
- Isomerases ( EC 5 -. -. - )
- Ligases ( EC 6 -. -. - )
- Lyase