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  • chitin
  • Chitin disaccharide deacetylase (EC 3.5.1.105, chitobiose amidohydolase, COD, chitin oligosaccharide deacetylase, chitin oligosaccharide amidohydolase) is an enzyme with systematic name 2-(acetylamino)-4-O-(2-(acetylamino)-2-deoxy-beta-D-glucopyranosyl)-2-deoxy-D-glucopyranose acetylhydrolase. (wikipedia.org)
  • enzyme
  • The systematic name of this enzyme class is (1->4)-alpha-D-galacturonan reducing-end-disaccharide-lyase. (wikipedia.org)
  • Unsaturated chondroitin disaccharide hydrolase (EC 3.2.1.180, UGL, unsaturated glucuronyl hydrolase) is an enzyme with systematic name beta-D-4-deoxy-Delta4-GlcAp-(1->3)-beta-D-GalNAc6S hydrolase. (wikipedia.org)
  • This enzyme catalyses the following chemical reaction beta-D-4-deoxy-Delta4-GlcAp-(1->3)-beta-D-GalNAc6S + H2O ⇌ {\displaystyle \rightleftharpoons } 5-dehydro-4-deoxy-D-glucuronate + N-acetyl-beta-D-galactosamine-6-O-sulfate The enzyme releases 4-deoxy-4,5-didehydro D-glucuronic acid or 4-deoxy-4,5-didehydro L-iduronic acid from chondroitin disaccharides, hyaluronan disaccharides and heparin disaccharides. (wikipedia.org)