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7eap
From Proteopedia
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| - | '''Unreleased structure''' | ||
| - | + | ==Crystal structure of IpeA-XXXG complex== | |
| + | <StructureSection load='7eap' size='340' side='right'caption='[[7eap]], [[Resolution|resolution]] 1.42Å' scene=''> | ||
| + | == Structural highlights == | ||
| + | <table><tr><td colspan='2'>[[7eap]] is a 1 chain structure with sequence from [https://en.wikipedia.org/wiki/Aspergillus_oryzae_RIB40 Aspergillus oryzae RIB40]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=7EAP OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=7EAP FirstGlance]. <br> | ||
| + | </td></tr><tr id='method'><td class="sblockLbl"><b>[[Empirical_models|Method:]]</b></td><td class="sblockDat" id="methodDat">X-ray diffraction, [[Resolution|Resolution]] 1.42Å</td></tr> | ||
| + | <tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><scene name='pdbligand=BGC:BETA-D-GLUCOSE'>BGC</scene>, <scene name='pdbligand=CA:CALCIUM+ION'>CA</scene>, <scene name='pdbligand=NAG:N-ACETYL-D-GLUCOSAMINE'>NAG</scene>, <scene name='pdbligand=XYS:XYLOPYRANOSE'>XYS</scene></td></tr> | ||
| + | <tr id='resources'><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[https://proteopedia.org/fgij/fg.htm?mol=7eap FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=7eap OCA], [https://pdbe.org/7eap PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=7eap RCSB], [https://www.ebi.ac.uk/pdbsum/7eap PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=7eap ProSAT]</span></td></tr> | ||
| + | </table> | ||
| + | == Function == | ||
| + | [https://www.uniprot.org/uniprot/Q2U8V9_ASPOR Q2U8V9_ASPOR] | ||
| + | <div style="background-color:#fffaf0;"> | ||
| + | == Publication Abstract from PubMed == | ||
| + | Aspergillus oryzae isoprimeverose-producing oligoxyloglucan hydrolase (IpeA) releases isoprimeverose units (alpha-d-xylopyranosyl-(1-->6)-d-glucose) from the non-reducing end of xyloglucan oligosaccharides and belongs to glycoside hydrolase family 3. In this paper, we report the X-ray crystal structure of the IpeA complexed with a xyloglucan oligosaccharide, (XXXG: Glc4 Xyl3 ). Trp515 of IpeA plays a critical role in XXXG recognition at positive subsites. In addition, docking simulation of IpeA-XXXG suggested that two Tyr residues (Tyr268 and Tyr445) are involved in the catalytic reaction mechanism of IpeA. Tyr268 plays an important role in product turnover, whereas Tyr445 stabilizes the acid/base Glu524 residue, which serves as a proton donor. Our findings indicate that the substrate recognition machinery of IpeA is specifically adapted to xyloglucan oligosaccharides. | ||
| - | + | Structural basis for the catalytic mechanism of the glycoside hydrolase family 3 isoprimeverose-producing oligoxyloglucan hydrolase from Aspergillus oryzae.,Matsuzawa T, Watanabe M, Nakamichi Y, Akita H, Yaoi K FEBS Lett. 2022 Aug;596(15):1944-1954. doi: 10.1002/1873-3468.14427. Epub 2022, Jun 26. PMID:35717558<ref>PMID:35717558</ref> | |
| - | + | From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.<br> | |
| - | [[Category: | + | </div> |
| - | [[Category: | + | <div class="pdbe-citations 7eap" style="background-color:#fffaf0;"></div> |
| - | [[Category: Akita | + | == References == |
| - | [[Category: Nakamichi | + | <references/> |
| - | [[Category: Watanabe | + | __TOC__ |
| - | [[Category: Yaoi | + | </StructureSection> |
| + | [[Category: Aspergillus oryzae RIB40]] | ||
| + | [[Category: Large Structures]] | ||
| + | [[Category: Akita H]] | ||
| + | [[Category: Matsuzawa T]] | ||
| + | [[Category: Nakamichi Y]] | ||
| + | [[Category: Watanabe M]] | ||
| + | [[Category: Yaoi K]] | ||
Current revision
Crystal structure of IpeA-XXXG complex
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