2v8m

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[[Image:2v8m.png|left|200px]]
 
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==Carbohydrate-binding of the starch binding domain of Rhizopus oryzae glucoamylase in complex with beta-cyclodextrin and maltoheptaose==
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The line below this paragraph, containing "STRUCTURE_2v8m", creates the "Structure Box" on the page.
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<StructureSection load='2v8m' size='340' side='right'caption='[[2v8m]], [[Resolution|resolution]] 2.30&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'>[[2v8m]] is a 4 chain structure with sequence from [https://en.wikipedia.org/wiki/Rhizopus_arrhizus Rhizopus arrhizus]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=2V8M OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=2V8M 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]] 2.3&#8491;</td></tr>
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<tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><scene name='pdbligand=GLC:ALPHA-D-GLUCOSE'>GLC</scene>, <scene name='pdbligand=SO4:SULFATE+ION'>SO4</scene></td></tr>
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{{STRUCTURE_2v8m| PDB=2v8m | SCENE= }}
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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=2v8m FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=2v8m OCA], [https://pdbe.org/2v8m PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=2v8m RCSB], [https://www.ebi.ac.uk/pdbsum/2v8m PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=2v8m ProSAT]</span></td></tr>
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</table>
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== Function ==
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[https://www.uniprot.org/uniprot/B7XC04_RHIOR B7XC04_RHIOR]
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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/v8/2v8m_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=2v8m 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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GA (glucoamylase) hydrolyses starch and polysaccharides to beta-D-glucose. RoGA (Rhizopus oryzae GA) consists of two functional domains, an N-terminal SBD (starch-binding domain) and a C-terminal catalytic domain, which are connected by an O-glycosylated linker. In the present study, the crystal structures of the SBD from RoGA (RoGACBM21) and the complexes with beta-cyclodextrin (SBD-betaCD) and maltoheptaose (SBD-G7) were determined. Two carbohydrate binding sites, I (Trp(47)) and II (Tyr(32)), were resolved and their binding was co-operative. Besides the hydrophobic interaction, two unique polyN loops comprising consecutive asparagine residues also participate in the sugar binding. A conformational change in Tyr(32) was observed between unliganded and liganded SBDs. To elucidate the mechanism of polysaccharide binding, a number of mutants were constructed and characterized by a quantitative binding isotherm and Scatchard analysis. A possible binding path for long-chain polysaccharides in RoGACBM21 was proposed.
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===CARBOHYDRATE-BINDING OF THE STARCH BINDING DOMAIN OF RHIZOPUS ORYZAE GLUCOAMYLASE IN COMPLEX WITH BETA-CYCLODEXTRIN AND MALTOHEPTAOSE===
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Crystal structures of the starch-binding domain from Rhizopus oryzae glucoamylase reveal a polysaccharide-binding path.,Tung JY, Chang MD, Chou WI, Liu YY, Yeh YH, Chang FY, Lin SC, Qiu ZL, Sun YJ Biochem J. 2008 Nov 15;416(1):27-36. PMID:18588504<ref>PMID:18588504</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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The line below this paragraph, {{ABSTRACT_PUBMED_18588504}}, adds the Publication Abstract to the page
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<div class="pdbe-citations 2v8m" style="background-color:#fffaf0;"></div>
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(as it appears on PubMed at http://www.pubmed.gov), where 18588504 is the PubMed ID number.
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== References ==
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<references/>
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{{ABSTRACT_PUBMED_18588504}}
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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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[[2v8m]] is a 4 chain structure with sequence from [http://en.wikipedia.org/wiki/Rhizopus_oryzae Rhizopus oryzae]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=2V8M OCA].
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[[Category: Rhizopus arrhizus]]
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[[Category: Liu Y-Y]]
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==Reference==
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[[Category: Sun Y-J]]
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<ref group="xtra">PMID:018588504</ref><references group="xtra"/>
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[[Category: Tung J-Y]]
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[[Category: Glucan 1,4-alpha-glucosidase]]
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[[Category: Rhizopus oryzae]]
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[[Category: Liu, Y Y.]]
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[[Category: Sun, Y J.]]
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[[Category: Tung, J Y.]]
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[[Category: Carbohydrate binding]]
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[[Category: Hydrolase]]
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Current revision

Carbohydrate-binding of the starch binding domain of Rhizopus oryzae glucoamylase in complex with beta-cyclodextrin and maltoheptaose

PDB ID 2v8m

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