1sqj

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[[Image:1sqj.gif|left|200px]]
 
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==Crystal Structure Analysis of Oligoxyloglucan reducing-end-specific cellobiohydrolase (OXG-RCBH)==
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The line below this paragraph, containing "STRUCTURE_1sqj", creates the "Structure Box" on the page.
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<StructureSection load='1sqj' size='340' side='right'caption='[[1sqj]], [[Resolution|resolution]] 2.20&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'>[[1sqj]] is a 2 chain structure with sequence from [https://en.wikipedia.org/wiki/Geotrichum_sp._M128 Geotrichum sp. M128]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1SQJ OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=1SQJ 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]] 2.2&#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=1sqj FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=1sqj OCA], [https://pdbe.org/1sqj PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=1sqj RCSB], [https://www.ebi.ac.uk/pdbsum/1sqj PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=1sqj ProSAT]</span></td></tr>
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{{STRUCTURE_1sqj| PDB=1sqj | SCENE= }}
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</table>
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== Function ==
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[https://www.uniprot.org/uniprot/CBHRE_GEOS1 CBHRE_GEOS1]
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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/sq/1sqj_consurf.spt"</scriptWhenChecked>
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<scriptWhenUnchecked>script /wiki/extensions/Proteopedia/spt/initialview03.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=1sqj 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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Oligoxyloglucan reducing-end-specific cellobiohydrolase (OXG-RCBH; EC 3.2.1.150) is an exoglucanase that recognizes the reducing end of oligoxyloglucan and releases two glucosyl residue segments from the main chain. The X-ray crystal structure of OXG-RCBH determined at 2.2 A resolution reveals a unique feature of this enzyme; OXG-RCBH consists of a tandem repeat of two similar domains, which are both folded into seven-bladed beta-propeller structures. The sequence alignment of the propeller blades, based on the structure, indicates that a weak repeat of the amino acid sequence occurred seven times to construct each domain. There is a cleft that can accommodate the substrate oligosaccharide between the two domains, which is a putative substrate binding subsite. Mutation of either Asp35 or Asp465, located in the putative catalytic center, to Asn resulted in a protein with no detectable catalytic activity, indicating the critical role of these amino acids in catalysis.
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'''Crystal Structure Analysis of Oligoxyloglucan reducing-end-specific cellobiohydrolase (OXG-RCBH)'''
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Tandem repeat of a seven-bladed beta-propeller domain in oligoxyloglucan reducing-end-specific cellobiohydrolase.,Yaoi K, Kondo H, Noro N, Suzuki M, Tsuda S, Mitsuishi Y Structure. 2004 Jul;12(7):1209-17. PMID:15242597<ref>PMID:15242597</ref>
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==Overview==
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Oligoxyloglucan reducing-end-specific cellobiohydrolase (OXG-RCBH; EC 3.2.1.150) is an exoglucanase that recognizes the reducing end of oligoxyloglucan and releases two glucosyl residue segments from the main chain. The X-ray crystal structure of OXG-RCBH determined at 2.2 A resolution reveals a unique feature of this enzyme; OXG-RCBH consists of a tandem repeat of two similar domains, which are both folded into seven-bladed beta-propeller structures. The sequence alignment of the propeller blades, based on the structure, indicates that a weak repeat of the amino acid sequence occurred seven times to construct each domain. There is a cleft that can accommodate the substrate oligosaccharide between the two domains, which is a putative substrate binding subsite. Mutation of either Asp35 or Asp465, located in the putative catalytic center, to Asn resulted in a protein with no detectable catalytic activity, indicating the critical role of these amino acids in catalysis.
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==About this Structure==
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From MEDLINE&reg;/PubMed&reg;, a database of the U.S. National Library of Medicine.<br>
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1SQJ is a [[Single protein]] structure of sequence from [http://en.wikipedia.org/wiki/Geotrichum_sp._m128 Geotrichum sp. m128]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1SQJ OCA].
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</div>
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<div class="pdbe-citations 1sqj" style="background-color:#fffaf0;"></div>
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==Reference==
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==See Also==
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Tandem repeat of a seven-bladed beta-propeller domain in oligoxyloglucan reducing-end-specific cellobiohydrolase., Yaoi K, Kondo H, Noro N, Suzuki M, Tsuda S, Mitsuishi Y, Structure. 2004 Jul;12(7):1209-17. PMID:[http://www.ncbi.nlm.nih.gov/pubmed/15242597 15242597]
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*[[Cellobiohydrolase 3D structures|Cellobiohydrolase 3D structures]]
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[[Category: Geotrichum sp. m128]]
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== References ==
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[[Category: Oligoxyloglucan reducing-end-specific cellobiohydrolase]]
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<references/>
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[[Category: Single protein]]
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__TOC__
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[[Category: Kondo, H.]]
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</StructureSection>
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[[Category: Mitsuishi, Y.]]
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[[Category: Geotrichum sp. M128]]
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[[Category: Noro, N.]]
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[[Category: Large Structures]]
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[[Category: Suzuki, M.]]
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[[Category: Kondo H]]
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[[Category: Tsuda, S.]]
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[[Category: Mitsuishi Y]]
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[[Category: Yaoi, K.]]
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[[Category: Noro N]]
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[[Category: Beta-propeller]]
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[[Category: Suzuki M]]
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''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Sat May 3 09:01:23 2008''
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[[Category: Tsuda S]]
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[[Category: Yaoi K]]

Current revision

Crystal Structure Analysis of Oligoxyloglucan reducing-end-specific cellobiohydrolase (OXG-RCBH)

PDB ID 1sqj

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