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1gqk

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[[Image:1gqk.png|left|200px]]
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==STRUCTURE OF PSEUDOMONAS CELLULOSA ALPHA-D-GLUCURONIDASE COMPLEXED WITH GLUCURONIC ACID==
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<StructureSection load='1gqk' size='340' side='right' caption='[[1gqk]], [[Resolution|resolution]] 1.90&Aring;' scene=''>
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== Structural highlights ==
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<table><tr><td colspan='2'>[[1gqk]] is a 2 chain structure with sequence from [http://en.wikipedia.org/wiki/Cellvibrio_japonicus Cellvibrio japonicus]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1GQK OCA]. For a <b>guided tour on the structure components</b> use [http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=1GQK FirstGlance]. <br>
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</td></tr><tr><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat"><scene name='pdbligand=BDP:BETA-D-GLUCOPYRANURONIC+ACID'>BDP</scene>, <scene name='pdbligand=CO:COBALT+(II)+ION'>CO</scene>, <scene name='pdbligand=EDO:1,2-ETHANEDIOL'>EDO</scene><br>
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<tr><td class="sblockLbl"><b>[[Related_structure|Related:]]</b></td><td class="sblockDat">[[1gqi|1gqi]], [[1gqj|1gqj]], [[1gql|1gql]]</td></tr>
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<tr><td class="sblockLbl"><b>Activity:</b></td><td class="sblockDat"><span class='plainlinks'>[http://en.wikipedia.org/wiki/Alpha-glucuronidase Alpha-glucuronidase], with EC number [http://www.brenda-enzymes.info/php/result_flat.php4?ecno=3.2.1.139 3.2.1.139] </span></td></tr>
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<tr><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=1gqk FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=1gqk OCA], [http://www.rcsb.org/pdb/explore.do?structureId=1gqk RCSB], [http://www.ebi.ac.uk/pdbsum/1gqk PDBsum]</span></td></tr>
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<table>
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== Evolutionary Conservation ==
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[[Image:Consurf_key_small.gif|200px|right]]
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Check<jmol>
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<jmolCheckbox>
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<scriptWhenChecked>select protein; define ~consurf_to_do selected; consurf_initial_scene = true; script "/wiki/ConSurf/gq/1gqk_consurf.spt"</scriptWhenChecked>
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<scriptWhenUnchecked>script /wiki/extensions/Proteopedia/spt/initialview01.spt</scriptWhenUnchecked>
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<text>to colour the structure by Evolutionary Conservation</text>
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</jmolCheckbox>
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</jmol>, as determined by [http://consurfdb.tau.ac.il/ ConSurfDB]. You may read the [[Conservation%2C_Evolutionary|explanation]] of the method and the full data available from [http://bental.tau.ac.il/new_ConSurfDB/chain_selection.php?pdb_ID=2ata ConSurf].
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<div style="clear:both"></div>
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<div style="background-color:#fffaf0;">
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== Publication Abstract from PubMed ==
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Alpha-glucuronidases, components of an ensemble of enzymes central to the recycling of photosynthetic biomass, remove the alpha-1,2 linked 4-O-methyl glucuronic acid from xylans. The structure of the alpha-glucuronidase, GlcA67A, from Pseudomonas cellulosa reveals three domains, the central of which is a (beta/alpha)(8) barrel housing the catalytic apparatus. Complexes of the enzyme with the individual reaction products, either xylobiose or glucuronic acid, and the ternary complex of both glucuronic acid and xylotriose reveal a "blind" pocket which selects for short decorated xylooligosaccharides substituted with the uronic acid at their nonreducing end, consistent with kinetic data. The catalytic center reveals a constellation of carboxylates; Glu292 is poised to provide protonic assistance to leaving group departure with Glu393 and Asp365 both appropriately positioned to provide base-catalyzed assistance for inverting nucleophilic attack by water.
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{{STRUCTURE_1gqk| PDB=1gqk | SCENE= }}
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The structural basis for catalysis and specificity of the Pseudomonas cellulosa alpha-glucuronidase, GlcA67A.,Nurizzo D, Nagy T, Gilbert HJ, Davies GJ Structure. 2002 Apr;10(4):547-56. PMID:11937059<ref>PMID:11937059</ref>
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===STRUCTURE OF PSEUDOMONAS CELLULOSA ALPHA-D-GLUCURONIDASE COMPLEXED WITH GLUCURONIC ACID===
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From MEDLINE&reg;/PubMed&reg;, a database of the U.S. National Library of Medicine.<br>
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</div>
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{{ABSTRACT_PUBMED_11937059}}
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== References ==
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<references/>
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==About this Structure==
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__TOC__
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[[1gqk]] is a 2 chain structure with sequence from [http://en.wikipedia.org/wiki/Cellvibrio_japonicus Cellvibrio japonicus]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1GQK OCA].
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</StructureSection>
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==Reference==
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<ref group="xtra">PMID:011937059</ref><references group="xtra"/>
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[[Category: Alpha-glucuronidase]]
[[Category: Alpha-glucuronidase]]
[[Category: Cellvibrio japonicus]]
[[Category: Cellvibrio japonicus]]

Revision as of 10:18, 28 September 2014

STRUCTURE OF PSEUDOMONAS CELLULOSA ALPHA-D-GLUCURONIDASE COMPLEXED WITH GLUCURONIC ACID

1gqk, resolution 1.90Å

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