ID   3.2.1.180
DE   unsaturated chondroitin disaccharide hydrolase.
AN   unsaturated glucuronyl hydrolase.
CA   beta-D-4-deoxy-Delta(4)-GlcpA-(1->3)-beta-D-GalpNAc6S + H2O = 5-dehydro-
CA   4-deoxy-D-glucuronate + N-acetyl-beta-D-galactosamine 6-sulfate.
CC   -!- The enzyme releases 4-deoxy-4,5-didehydro D-glucuronic acid or
CC       4-deoxy-4,5-didehydro L-iduronic acid from chondroitin disaccharides,
CC       hyaluronan disaccharides and heparin disaccharides and cleaves both
CC       glycosidic (1->3) and (1->4) bonds.
CC   -!- It prefers the sulfated disaccharides to the unsulfated
CC       disaccharides.
DR   Q8E372, UCDH_STRA3 ;  Q9A0T3, UCDH_STRP1 ;  Q8DR77, UCDH_STRR6 ;
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