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1btc

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(New page: 200px<br /><applet load="1btc" size="450" color="white" frame="true" align="right" spinBox="true" caption="1btc, resolution 2.0&Aring;" /> '''THREE-DIMENSIONAL STR...)
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[[Image:1btc.gif|left|200px]]<br /><applet load="1btc" size="450" color="white" frame="true" align="right" spinBox="true"
 
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caption="1btc, resolution 2.0&Aring;" />
 
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'''THREE-DIMENSIONAL STRUCTURE OF SOYBEAN BETA-AMYLASE DETERMINED AT 3.0 ANGSTROMS RESOLUTION: PRELIMINARY CHAIN TRACING OF THE COMPLEX WITH ALPHA-CYCLODEXTRIN'''<br />
 
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==Overview==
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==THREE-DIMENSIONAL STRUCTURE OF SOYBEAN BETA-AMYLASE DETERMINED AT 3.0 ANGSTROMS RESOLUTION: PRELIMINARY CHAIN TRACING OF THE COMPLEX WITH ALPHA-CYCLODEXTRIN==
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The three-dimensional structure of a complex of soybean beta-amylase [EC, 3.2.1.2] with an inhibitor, alpha-cyclodextrin, has been determined at 3.0, A resolution by X-ray diffraction analysis. Preliminary chain tracing, showed that the enzyme folded into large and small domains. The large, domain has a (beta alpha)8 super-secondary structure, while the smaller, one is formed from two long loops extending from the beta 3 and beta 4, strands of the (beta alpha)8 structure. The interface of the two domains, together with shorter loops from the (beta alpha)8 structure form a deep, cleft, in which alpha-cyclodextrin binds slightly away from the center., Two maltose molecules also bind in the cleft. One shares a binding site, with alpha-cyclodextrin and the other is situated more deeply in the, cleft.
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<StructureSection load='1btc' size='340' side='right'caption='[[1btc]], [[Resolution|resolution]] 2.00&Aring;' scene=''>
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== Structural highlights ==
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<table><tr><td colspan='2'>[[1btc]] is a 1 chain structure with sequence from [https://en.wikipedia.org/wiki/Glycine_max Glycine max]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1BTC OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=1BTC FirstGlance]. <br>
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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='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><scene name='pdbligand=BME:BETA-MERCAPTOETHANOL'>BME</scene>, <scene name='pdbligand=GLC:ALPHA-D-GLUCOSE'>GLC</scene>, <scene name='pdbligand=PRD_900015:alpha-cyclodextrin'>PRD_900015</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'>[https://proteopedia.org/fgij/fg.htm?mol=1btc FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=1btc OCA], [https://pdbe.org/1btc PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=1btc RCSB], [https://www.ebi.ac.uk/pdbsum/1btc PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=1btc ProSAT]</span></td></tr>
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</table>
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== Function ==
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[https://www.uniprot.org/uniprot/AMYB_SOYBN AMYB_SOYBN]
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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/bt/1btc_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=1btc ConSurf].
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<div style="clear:both"></div>
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==About this Structure==
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==See Also==
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1BTC is a [http://en.wikipedia.org/wiki/Single_protein Single protein] structure of sequence from [http://en.wikipedia.org/wiki/ ] with SO4 and BME as [http://en.wikipedia.org/wiki/ligands ligands]. Active as [http://en.wikipedia.org/wiki/Beta-amylase Beta-amylase], with EC number [http://www.brenda-enzymes.info/php/result_flat.php4?ecno=3.2.1.2 3.2.1.2] Full crystallographic information is available from [http://ispc.weizmann.ac.il/oca-bin/ocashort?id=1BTC OCA].
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*[[Amylase 3D structures|Amylase 3D structures]]
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__TOC__
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==Reference==
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</StructureSection>
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Three-dimensional structure of soybean beta-amylase determined at 3.0 A resolution: preliminary chain tracing of the complex with alpha-cyclodextrin., Mikami B, Sato M, Shibata T, Hirose M, Aibara S, Katsube Y, Morita Y, J Biochem (Tokyo). 1992 Oct;112(4):541-6. PMID:[http://ispc.weizmann.ac.il//pmbin/getpm?pmid=1491009 1491009]
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[[Category: Glycine max]]
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[[Category: Beta-amylase]]
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[[Category: Large Structures]]
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[[Category: Single protein]]
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[[Category: Hehre EJ]]
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[[Category: Hehre, E.J.]]
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[[Category: Hirose M]]
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[[Category: Hirose, M.]]
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[[Category: Katsube Y]]
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[[Category: Katsube, Y.]]
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[[Category: Mikami B]]
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[[Category: Mikami, B.]]
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[[Category: Morita Y]]
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[[Category: Morita, Y.]]
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[[Category: Sacchettini JC]]
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[[Category: Sacchettini, J.C.]]
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[[Category: Sato M]]
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[[Category: Sato, M.]]
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[[Category: BME]]
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[[Category: SO4]]
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[[Category: hydrolase(o-glycosyl)]]
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''Page seeded by [http://ispc.weizmann.ac.il/oca OCA ] on Tue Nov 20 11:54:23 2007''
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Current revision

THREE-DIMENSIONAL STRUCTURE OF SOYBEAN BETA-AMYLASE DETERMINED AT 3.0 ANGSTROMS RESOLUTION: PRELIMINARY CHAIN TRACING OF THE COMPLEX WITH ALPHA-CYCLODEXTRIN

PDB ID 1btc

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