gellan tetrasaccharide unsaturated glucuronosyl hydrolase EC#: 3.2.1.179; 凯望编码 (ChemWhat Code): 1380099

英文名 gellan tetrasaccharide unsaturated glucuronosyl hydrolase
Example Structure Example Structure of gellan tetrasaccharide unsaturated glucuronosyl hydrolase EC#: 3.2.1.179
别名 UGL, unsaturated glucuronyl hydrolase
EC Number 3.2.1.179
CAS编号
Comments The enzyme releases 4-deoxy-4(5)-unsaturated?D-glucuronic acid from oligosaccharides produced by polysaccharide lyases, e.g. the tetrasaccharide ¦Â-D-4-deoxy-¦¤4-GlcAp-(1¡ú4)-¦Â-D-Glcp-(1¡ú4)-¦Á-L-Rhap-(1¡ú3)-D-Glcp?produced by EC?4.2.2.25, gellan lyase. The enzyme can also hydrolyse unsaturated chondroitin and hyaluronate disaccharides (¦Â-D-4-deoxy-¦¤4-GlcAp-(1¡ú3)-D-GalNAc, ¦Â-D-4-deoxy-¦¤4-GlcAp-(1¡ú3)-D-GalNAc6S, ¦Â-D-4-deoxy-¦¤4-GlcAp2S-(1¡ú3)-D-GalNAc, ¦Â-D-4-deoxy-¦¤4-GlcAp-(1¡ú3)-D-GlcNAc), preferring the unsulfated disaccharides to the sulfated disaccharides.
Cofactor
History
Reactions Beta-D-4-deoxy-Delta(4)-GlcAp-(1->4)-beta-D-Glcp-(1->4)-alpha-L-Rhap- (1->3)-D-Glcp + H(2)O = 5-dehydro-4-deoxy-D-glucuronate + beta-D-Glcp- (1->4)-alpha-L-Rhap-(1->3)-D-Glcp.

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