1zm1: Difference between revisions
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==Crystal structures of complex F. succinogenes 1,3-1,4-beta-D-glucanase and beta-1,3-1,4-cellotriose== | ==Crystal structures of complex F. succinogenes 1,3-1,4-beta-D-glucanase and beta-1,3-1,4-cellotriose== | ||
<StructureSection load='1zm1' size='340' side='right' caption='[[1zm1]], [[Resolution|resolution]] 2.30Å' scene=''> | <StructureSection load='1zm1' size='340' side='right' caption='[[1zm1]], [[Resolution|resolution]] 2.30Å' scene=''> | ||
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<tr id='related'><td class="sblockLbl"><b>[[Related_structure|Related:]]</b></td><td class="sblockDat">[[1mve|1mve]]</td></tr> | <tr id='related'><td class="sblockLbl"><b>[[Related_structure|Related:]]</b></td><td class="sblockDat">[[1mve|1mve]]</td></tr> | ||
<tr id='activity'><td class="sblockLbl"><b>Activity:</b></td><td class="sblockDat"><span class='plainlinks'>[http://en.wikipedia.org/wiki/Licheninase Licheninase], with EC number [http://www.brenda-enzymes.info/php/result_flat.php4?ecno=3.2.1.73 3.2.1.73] </span></td></tr> | <tr id='activity'><td class="sblockLbl"><b>Activity:</b></td><td class="sblockDat"><span class='plainlinks'>[http://en.wikipedia.org/wiki/Licheninase Licheninase], with EC number [http://www.brenda-enzymes.info/php/result_flat.php4?ecno=3.2.1.73 3.2.1.73] </span></td></tr> | ||
<tr id='resources'><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=1zm1 FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=1zm1 OCA], [http://pdbe.org/1zm1 PDBe], [http://www.rcsb.org/pdb/explore.do?structureId=1zm1 RCSB], [http://www.ebi.ac.uk/pdbsum/1zm1 PDBsum]</span></td></tr> | <tr id='resources'><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=1zm1 FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=1zm1 OCA], [http://pdbe.org/1zm1 PDBe], [http://www.rcsb.org/pdb/explore.do?structureId=1zm1 RCSB], [http://www.ebi.ac.uk/pdbsum/1zm1 PDBsum], [http://prosat.h-its.org/prosat/prosatexe?pdbcode=1zm1 ProSAT]</span></td></tr> | ||
</table> | </table> | ||
== Evolutionary Conservation == | == Evolutionary Conservation == | ||
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Check<jmol> | Check<jmol> | ||
<jmolCheckbox> | <jmolCheckbox> | ||
<scriptWhenChecked>select protein; define ~consurf_to_do selected; consurf_initial_scene = true; script "/wiki/ConSurf/zm/1zm1_consurf.spt"</scriptWhenChecked> | <scriptWhenChecked>; select protein; define ~consurf_to_do selected; consurf_initial_scene = true; script "/wiki/ConSurf/zm/1zm1_consurf.spt"</scriptWhenChecked> | ||
<scriptWhenUnchecked>script /wiki/extensions/Proteopedia/spt/initialview01.spt</scriptWhenUnchecked> | <scriptWhenUnchecked>script /wiki/extensions/Proteopedia/spt/initialview01.spt</scriptWhenUnchecked> | ||
<text>to colour the structure by Evolutionary Conservation</text> | <text>to colour the structure by Evolutionary Conservation</text> | ||
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</div> | </div> | ||
<div class="pdbe-citations 1zm1" style="background-color:#fffaf0;"></div> | <div class="pdbe-citations 1zm1" style="background-color:#fffaf0;"></div> | ||
== References == | == References == | ||
<references/> | <references/> | ||
Revision as of 12:20, 2 May 2018
Crystal structures of complex F. succinogenes 1,3-1,4-beta-D-glucanase and beta-1,3-1,4-cellotrioseCrystal structures of complex F. succinogenes 1,3-1,4-beta-D-glucanase and beta-1,3-1,4-cellotriose
Structural highlights
Evolutionary Conservation Check, as determined by ConSurfDB. You may read the explanation of the method and the full data available from ConSurf. Publication Abstract from PubMedFibrobacter succinogenes 1,3-1,4-beta-D-glucanase (Fsbeta-glucanase) catalyzes the specific hydrolysis of beta-1,4 glycosidic bonds adjacent to beta-1,3 linkages in beta-D-glucans or lichenan. This is the first report to elucidate the crystal structure of a truncated Fsbeta-glucanase (TFsbeta-glucanase) in complex with beta-1,3-1,4-cellotriose, a major product of the enzyme reaction. The crystal structures, at a resolution of 2.3 angstroms, reveal that the overall fold of TFsbeta-glucanase remains virtually unchanged upon sugar binding. The enzyme accommodates five glucose residues, forming a concave active cleft. The beta-1,3-1,4-cellotriose with subsites -3 to -1 bound to the active cleft of TFsbeta-glucanase with its reducing end subsite -1 close to the key catalytic residues Glu56 and Glu60. All three subsites of the beta-1,3-1,4-cellotriose adopted a relaxed C(1)4 conformation, with a beta-1,3 glycosidic linkage between subsites -2 and -1, and a beta-1,4 glycosidic linkage between subsites -3 and -2. On the basis of the enzyme-product complex structure observed in this study, a catalytic mechanism and substrate binding conformation of the active site of TFsbeta-glucanase is proposed. Crystal structure of truncated Fibrobacter succinogenes 1,3-1,4-beta-D-glucanase in complex with beta-1,3-1,4-cellotriose.,Tsai LC, Shyur LF, Cheng YS, Lee SH J Mol Biol. 2005 Dec 2;354(3):642-51. Epub 2005 Sep 30. PMID:16246371[1] From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine. References
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