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Mathematical Q models - Revision history
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<p><b>New page</b></p><div>{{Infobox enzyme<br />
| Name = Gellan tetrasaccharide unsaturated glucuronyl hydrolase<br />
| EC_number = 3.2.1.179<br />
| CAS_number = <br />
| IUBMB_EC_number = 3/2/1/179<br />
| GO_code = <br />
| image = <br />
| width = <br />
| caption =<br />
}}<br />
'''Gellan tetrasaccharide unsaturated glucuronyl hydrolase''' ({{EC number|3.2.1.179}}, ''UGL'', ''unsaturated glucuronyl hydrolase'') is an [[enzyme]] with system name ''beta-D-4-deoxy-Delta4-GlcAp-(1->4)-beta-D-Glcp-(1->4)-alpha-L-Rhap-(1->3)-beta-D-Glcp beta-D-4-deoxy-Delta4-GlcAp hydrolase''.<ref>{{cite journal | title = Crystal structure of unsaturated glucuronyl hydrolase, responsible for the degradation of glycosaminoglycan, from ''Bacillus'' sp. GL1 at 1.8 &Aring; resolution |author = Itoh, T., Akao, S., Hashimoto, W., Mikami, B. and Murata, K. |journal = J. Biol. Chem. |year = 2004 |volume = 279 |pages = 31804–31812 |pmid = 15148314}}</ref><ref>{{cite journal | title = Unsaturated glucuronyl hydrolase of ''Bacillus'' sp. GL1: novel enzyme prerequisite for metabolism of unsaturated oligosaccharides produced by polysaccharide lyases |author = Hashimoto, W., Kobayashi, E., Nankai, H., Sato, N., Miya, T., Kawai, S. and Murata, K. |journal = Arch. Biochem. Biophys. |year = 1999 |volume = 368 |pages = 367–374 |pmid = 10441389 |doi=10.1006/abbi.1999.1305}}</ref><ref>{{cite journal | title = Substrate recognition by unsaturated glucuronyl hydrolase from ''Bacillus'' sp. GL1 |author = Itoh, T., Hashimoto, W., Mikami, B. and Murata, K. |journal = Biochem. Biophys. Res. Commun. |year = 2006 |volume = 344 |pages = 253–262 |pmid = 16630576}}</ref> This enzyme [[catalysis|catalyses]] the following [[chemical reaction]]<br />
<br />
: beta-D-4-deoxy-Delta4-GlcAp-(1->4)-beta-D-Glcp-(1->4)-alpha-L-Rhap-(1->3)-beta-D-Glcp + H<sub>2</sub>O <math>\rightleftharpoons</math> 5-dehydro-4-deoxy-D-glucuronate + beta-D-Glcp-(1->4)-alpha-L-Rhap-(1->3)-beta-D-Glcp<br />
<br />
The enzyme releases 4-deoxy-4(5)-unsaturated D-glucuronic acid from [[oligosaccharide]]s produced by [[polysaccharide lyase]]s.<br />
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== References ==<br />
{{reflist}}<br />
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== External links ==<br />
* {{MeshName|Gellan+tetrasaccharide+unsaturated+glucuronyl+hydrolase}}<br />
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[[Category:EC 3.2.1]]</div>
en>ChrisGualtieri