4c2l

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==Crystal structure of endo-xylogalacturonan hydrolase from Aspergillus tubingensis==
==Crystal structure of endo-xylogalacturonan hydrolase from Aspergillus tubingensis==
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<StructureSection load='4c2l' size='340' side='right' caption='[[4c2l]], [[Resolution|resolution]] 1.75&Aring;' scene=''>
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<StructureSection load='4c2l' size='340' side='right'caption='[[4c2l]], [[Resolution|resolution]] 1.75&Aring;' scene=''>
== Structural highlights ==
== Structural highlights ==
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<table><tr><td colspan='2'>[[4c2l]] is a 1 chain structure with sequence from [http://en.wikipedia.org/wiki/Asptu Asptu]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=4C2L OCA]. For a <b>guided tour on the structure components</b> use [http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=4C2L FirstGlance]. <br>
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<table><tr><td colspan='2'>[[4c2l]] is a 1 chain structure with sequence from [https://en.wikipedia.org/wiki/Aspergillus_tubingensis Aspergillus tubingensis]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=4C2L OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=4C2L FirstGlance]. <br>
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</td></tr><tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat"><scene name='pdbligand=GOL:GLYCEROL'>GOL</scene>, <scene name='pdbligand=MAN:ALPHA-D-MANNOSE'>MAN</scene>, <scene name='pdbligand=NAG:N-ACETYL-D-GLUCOSAMINE'>NAG</scene>, <scene name='pdbligand=SO4:SULFATE+ION'>SO4</scene></td></tr>
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</td></tr><tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><scene name='pdbligand=GOL:GLYCEROL'>GOL</scene>, <scene name='pdbligand=MAN:ALPHA-D-MANNOSE'>MAN</scene>, <scene name='pdbligand=NAG:N-ACETYL-D-GLUCOSAMINE'>NAG</scene>, <scene name='pdbligand=SO4:SULFATE+ION'>SO4</scene></td></tr>
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<tr id='resources'><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=4c2l FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=4c2l OCA], [http://pdbe.org/4c2l PDBe], [http://www.rcsb.org/pdb/explore.do?structureId=4c2l RCSB], [http://www.ebi.ac.uk/pdbsum/4c2l PDBsum], [http://prosat.h-its.org/prosat/prosatexe?pdbcode=4c2l ProSAT]</span></td></tr>
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<tr id='resources'><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[https://proteopedia.org/fgij/fg.htm?mol=4c2l FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=4c2l OCA], [https://pdbe.org/4c2l PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=4c2l RCSB], [https://www.ebi.ac.uk/pdbsum/4c2l PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=4c2l ProSAT]</span></td></tr>
</table>
</table>
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<div style="background-color:#fffaf0;">
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== Function ==
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== Publication Abstract from PubMed ==
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[[https://www.uniprot.org/uniprot/XGHA_ASPTU XGHA_ASPTU]]
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Endo-Xylogalacturonan hydrolase is a member of glycoside hydrolase family 28 (GH28) that hydrolyzes the glycosidic bond between two beta-xylose substituted galacturonic acid residues in pectin. Presented here is the X-ray crystal structure of the endo-xylogalacturonan hydrolase from Aspergillus tubingensis (XghA) at 1.75 A resolution. The high degree of structural conservation in the active site and catalytic apparatus, which is shared with polygalacturonases, indicates that cleavage of the substrate proceeds in essentially the same way as found for the other GH28 enzymes. Molecular modeling of a xylosylated tri-galacturonate in the active site identified the amino acid residues involved in substrate binding. They border a substrate-binding cleft, which is much wider than in other polygalacturonases, and which can accommodate xylosylated substrates. The most extensive interactions appear to occur at subsite +2, in agreement with enzyme kinetics results, which showed enhanced activity on substrates with a xylose attached to the galacturonic acid bound in subsite +2. This article is protected by copyright. All rights reserved.
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Crystal structure of Endo-Xylogalacturonan Hydrolase from Aspergillus tubingensis.,Rozeboom HJ, Beldman G, Schols HA, Dijkstra BW FEBS J. 2013 Sep 13. doi: 10.1111/febs.12524. PMID:24034788<ref>PMID:24034788</ref>
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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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<div class="pdbe-citations 4c2l" style="background-color:#fffaf0;"></div>
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== References ==
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<references/>
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__TOC__
__TOC__
</StructureSection>
</StructureSection>
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[[Category: Asptu]]
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[[Category: Aspergillus tubingensis]]
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[[Category: Beldman, G]]
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[[Category: Large Structures]]
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[[Category: Dijkstra, B W]]
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[[Category: Beldman G]]
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[[Category: Rozeboom, H J]]
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[[Category: Dijkstra BW]]
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[[Category: Schols, H A]]
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[[Category: Rozeboom HJ]]
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[[Category: Gh28]]
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[[Category: Schols HA]]
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[[Category: Hydrolase]]
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[[Category: Polygalacturonan]]
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Revision as of 17:22, 7 September 2022

Crystal structure of endo-xylogalacturonan hydrolase from Aspergillus tubingensis

PDB ID 4c2l

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