In enzymology, an oligogalacturonide lyase (EC 4.2.2.6) is an enzyme that catalyzes the chemical reaction: 4-(4-deoxy-beta-D-gluc-4-enuronosyl)-D-galacturonate → 2 5-dehydro-4-deoxy-D-glucuronate. Hence, this enzyme has one substrate, 4-(4-deoxy-beta-D-gluc-4-enuronosyl)-D-galacturonate, and one product, 5-dehydro-4-deoxy-D-glucuronate. This enzyme belongs to the family of lyases, specifically those carbon-oxygen lyases acting on polysaccharides.
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