The
enzyme chondroitin B lyase ()
catalyzes
Catalysis () is the process of increasing the rate of a chemical reaction by adding a substance known as a catalyst (). Catalysts are not consumed in the reaction and remain unchanged after it. If the reaction is rapid and the catalyst recyc ...
the following process:
:Eliminative cleavage of dermatan sulfate containing (1→4)-β-
D-hexosaminyl and (1→3)-β-
D-glucurosonyl or (1→3)-α-
L-iduronosyl linkages to disaccharides containing 4-deoxy-β-
D-gluc-4-enuronosyl groups to yield a 4,5-unsaturated dermatan-sulfate disaccharide (ΔUA-GalNAc-4S).
Glossary:
This enzyme belongs to the family of
lyase
In biochemistry, a lyase is an enzyme that catalyzes the breaking (an elimination reaction) of various chemical bonds by means other than hydrolysis (a substitution reaction) and oxidation, often forming a new double bond or a new ring structure. ...
s, specifically those carbon-oxygen lyases acting on polysaccharides. The
systematic name of this enzyme class is chondroitin B lyase. Other names in common use include chondroitinase B, ChonB, and ChnB.
References
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EC 4.2.2
Enzymes of unknown structure
{{4.2-enzyme-stub