117.211.86.74 at 07:59, 12 April 2013

2013-04-12T07:59:10Z

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{{Infobox enzyme
| Name = Unsaturated rhamnogalacturonyl hydrolase
| EC_number = 3.2.1.172
| CAS_number =
| IUBMB_EC_number = 3/2/1/172
| GO_code =
| image =
| width =
| caption =
}}
'''Unsaturated rhamnogalacturonyl hydrolase''' ({{EC number|3.2.1.172}}, ''YteR'', ''YesR'') is an [[enzyme]] with system name ''2-O-(4-deoxy-beta-L-threo-hex-4-enopyranuronosyl)-alpha-L-rhamnopyranose hydrolase''.<ref>{{cite journal | title = A novel glycoside hydrolase family 105: the structure of family 105 unsaturated rhamnogalacturonyl hydrolase complexed with a disaccharide in comparison with family 88 enzyme complexed with the disaccharide |author = Itoh, T., Ochiai, A., Mikami, B., Hashimoto, W. and Murata, K. |journal = J. Mol. Biol. |year = 2006 |volume = 360 |pages = 573–585 |pmid = 16781735}}</ref><ref>{{cite journal | title = 1.6 Å crystal structure of YteR protein from ''Bacillus subtilis'', a predicted lyase |author = Zhang, R., Minh, T., Lezondra, L., Korolev, S., Moy, S.F., Collart, F. and Joachimiak, A. |journal = Proteins |year = 2005 |volume = 60 |pages = 561–565 |pmid = 15906318}}</ref><ref>{{cite journal | title = Structure of unsaturated rhamnogalacturonyl hydrolase complexed with substrate |author = Itoh, T., Ochiai, A., Mikami, B., Hashimoto, W. and Murata, K. |journal = Biochem. Biophys. Res. Commun. |year = 2006 |volume = 347 |pages = 1021–1029 |pmid = 16870154}}</ref> This enzyme [[catalysis|catalyses]] the following [[chemical reaction]]

: 2-O-(4-deoxy-beta-L-threo-hex-4-enopyranuronosyl)-alpha-L-rhamnopyranose + H<sub>2</sub>O <math>\rightleftharpoons</math> 5-dehydro-4-deoxy-D-glucuronate + L-[[rhamnopyranose]]

The enzyme is part of the degradation system for rhamnogalacturonan I in ''[[Bacillus subtilis]]'' strain 168.

== References ==
{{reflist}}

== External links ==
* {{MeshName|Unsaturated+rhamnogalacturonyl+hydrolase}}

[[Category:EC 3.2.1]]

Barsoum elements - Revision history

117.211.86.74 at 07:59, 12 April 2013