2uwb

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{{Seed}}
 
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[[Image:2uwb.png|left|200px]]
 
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==Crystal structure of the Nasturtium seedling mutant xyloglucanase isoform NXG1-delta-YNIIG==
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The line below this paragraph, containing "STRUCTURE_2uwb", creates the "Structure Box" on the page.
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<StructureSection load='2uwb' size='340' side='right'caption='[[2uwb]], [[Resolution|resolution]] 2.00&Aring;' scene=''>
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You may change the PDB parameter (which sets the PDB file loaded into the applet)
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== Structural highlights ==
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or the SCENE parameter (which sets the initial scene displayed when the page is loaded),
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<table><tr><td colspan='2'>[[2uwb]] is a 2 chain structure with sequence from [https://en.wikipedia.org/wiki/Tropaeolum_majus Tropaeolum majus]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=2UWB OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=2UWB FirstGlance]. <br>
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or leave the SCENE parameter empty for the default display.
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</td></tr><tr id='method'><td class="sblockLbl"><b>[[Empirical_models|Method:]]</b></td><td class="sblockDat" id="methodDat">X-ray diffraction, [[Resolution|Resolution]] 2&#8491;</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=2uwb FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=2uwb OCA], [https://pdbe.org/2uwb PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=2uwb RCSB], [https://www.ebi.ac.uk/pdbsum/2uwb PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=2uwb ProSAT]</span></td></tr>
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{{STRUCTURE_2uwb| PDB=2uwb | SCENE= }}
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</table>
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== Function ==
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[https://www.uniprot.org/uniprot/Q07524_TROMA Q07524_TROMA] Catalyzes xyloglucan endohydrolysis (XEH) and/or endotransglycosylation (XET). Cleaves and religates xyloglucan polymers, an essential constituent of the primary cell wall, and thereby participates in cell wall construction of growing tissues.[RuleBase:RU361120]
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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/uw/2uwb_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/main_output.php?pdb_ID=2uwb 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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High-resolution, three-dimensional structures of the archetypal glycoside hydrolase family 16 (GH16) endo-xyloglucanases Tm-NXG1 and Tm-NXG2 from nasturtium (Tropaeolum majus) have been solved by x-ray crystallography. Key structural features that modulate the relative rates of substrate hydrolysis to transglycosylation in the GH16 xyloglucan-active enzymes were identified by structure-function studies of the recombinantly expressed enzymes in comparison with data for the strict xyloglucan endo-transglycosylase Ptt-XET16-34 from hybrid aspen (Populus tremula x Populus tremuloides). Production of the loop deletion variant Tm-NXG1-DeltaYNIIG yielded an enzyme that was structurally similar to Ptt-XET16-34 and had a greatly increased transglycosylation:hydrolysis ratio. Comprehensive bioinformatic analyses of XTH gene products, together with detailed kinetic data, strongly suggest that xyloglucanase activity has evolved as a gain of function in an ancestral GH16 XET to meet specific biological requirements during seed germination, fruit ripening, and rapid wall expansion.
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===CRYSTAL STRUCTURE OF THE NASTURTIUM SEEDLING MUTANT XYLOGLUCANASE ISOFORM NXG1-DELTA-YNIIG===
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Structural evidence for the evolution of xyloglucanase activity from xyloglucan endo-transglycosylases: biological implications for cell wall metabolism.,Baumann MJ, Eklof JM, Michel G, Kallas AM, Teeri TT, Czjzek M, Brumer H 3rd Plant Cell. 2007 Jun;19(6):1947-63. Epub 2007 Jun 8. PMID:17557806<ref>PMID:17557806</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 2uwb" style="background-color:#fffaf0;"></div>
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==See Also==
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The line below this paragraph, {{ABSTRACT_PUBMED_17557806}}, adds the Publication Abstract to the page
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*[[Glucanase 3D structures|Glucanase 3D structures]]
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(as it appears on PubMed at http://www.pubmed.gov), where 17557806 is the PubMed ID number.
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== References ==
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<references/>
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{{ABSTRACT_PUBMED_17557806}}
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__TOC__
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</StructureSection>
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==About this Structure==
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[[Category: Large Structures]]
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2UWB is a 2 chains structure of sequences from [http://en.wikipedia.org/wiki/Tropaeolum_majus Tropaeolum majus]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=2UWB OCA].
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==Reference==
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<ref group="xtra">PMID:17557806</ref><references group="xtra"/>
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[[Category: Tropaeolum majus]]
[[Category: Tropaeolum majus]]
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[[Category: Baumann, M J.]]
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[[Category: Baumann MJ]]
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[[Category: Brumer, H.]]
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[[Category: Brumer H]]
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[[Category: Czjzek, M.]]
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[[Category: Czjzek M]]
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[[Category: Eklof, J.]]
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[[Category: Eklof J]]
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[[Category: Kallasa, A.]]
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[[Category: Kallasa A]]
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[[Category: Michel, G.]]
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[[Category: Michel G]]
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[[Category: Teeri, T T.]]
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[[Category: Teeri TT]]
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[[Category: Family gh16]]
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[[Category: Glycosidase]]
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[[Category: Glycoside hydrolase]]
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[[Category: Hydrolase]]
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[[Category: Loop mutant nxg1- yniig]]
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[[Category: Tropaeolum majus xyloglucanase]]
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[[Category: Xyloglucan-endo-transferase]]
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''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Mon Feb 16 20:29:53 2009''
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Current revision

Crystal structure of the Nasturtium seedling mutant xyloglucanase isoform NXG1-delta-YNIIG

PDB ID 2uwb

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OCA

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