2wl9: Difference between revisions
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==CRYSTAL STRUCTURE OF CATECHOL 2,3-DIOXYGENASE== | ==CRYSTAL STRUCTURE OF CATECHOL 2,3-DIOXYGENASE== | ||
<StructureSection load='2wl9' size='340' side='right' caption='[[2wl9]], [[Resolution|resolution]] 1.90Å' scene=''> | <StructureSection load='2wl9' size='340' side='right' caption='[[2wl9]], [[Resolution|resolution]] 1.90Å' scene=''> | ||
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</td></tr><tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat"><scene name='pdbligand=FE:FE+(III)+ION'>FE</scene>, <scene name='pdbligand=GOL:GLYCEROL'>GOL</scene>, <scene name='pdbligand=MBD:3-METHYLCATECHOL'>MBD</scene>, <scene name='pdbligand=MG:MAGNESIUM+ION'>MG</scene></td></tr> | </td></tr><tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat"><scene name='pdbligand=FE:FE+(III)+ION'>FE</scene>, <scene name='pdbligand=GOL:GLYCEROL'>GOL</scene>, <scene name='pdbligand=MBD:3-METHYLCATECHOL'>MBD</scene>, <scene name='pdbligand=MG:MAGNESIUM+ION'>MG</scene></td></tr> | ||
<tr id='related'><td class="sblockLbl"><b>[[Related_structure|Related:]]</b></td><td class="sblockDat">[[2wl3|2wl3]]</td></tr> | <tr id='related'><td class="sblockLbl"><b>[[Related_structure|Related:]]</b></td><td class="sblockDat">[[2wl3|2wl3]]</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=2wl9 FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=2wl9 OCA], [http://www.rcsb.org/pdb/explore.do?structureId=2wl9 RCSB], [http://www.ebi.ac.uk/pdbsum/2wl9 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=2wl9 FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=2wl9 OCA], [http://pdbe.org/2wl9 PDBe], [http://www.rcsb.org/pdb/explore.do?structureId=2wl9 RCSB], [http://www.ebi.ac.uk/pdbsum/2wl9 PDBsum], [http://prosat.h-its.org/prosat/prosatexe?pdbcode=2wl9 ProSAT]</span></td></tr> | ||
</table> | </table> | ||
== Evolutionary Conservation == | == Evolutionary Conservation == | ||
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<text>to colour the structure by Evolutionary Conservation</text> | <text>to colour the structure by Evolutionary Conservation</text> | ||
</jmolCheckbox> | </jmolCheckbox> | ||
</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/ | </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=2wl9 ConSurf]. | ||
<div style="clear:both"></div> | <div style="clear:both"></div> | ||
<div style="background-color:#fffaf0;"> | <div style="background-color:#fffaf0;"> | ||
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From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.<br> | From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.<br> | ||
</div> | </div> | ||
<div class="pdbe-citations 2wl9" style="background-color:#fffaf0;"></div> | |||
==See Also== | ==See Also== | ||
Revision as of 11:59, 11 August 2016
CRYSTAL STRUCTURE OF CATECHOL 2,3-DIOXYGENASECRYSTAL STRUCTURE OF CATECHOL 2,3-DIOXYGENASE
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 PubMedA meta-cleavage pathway for the aerobic degradation of aromatic hydrocarbons is catalyzed by extradiol dioxygenases via a two-step mechanism: catechol substrate binding and dioxygen incorporation. The binding of substrate triggers the release of water, thereby opening a coordination site for molecular oxygen. The crystal structures of AkbC, a type I extradiol dioxygenase, and the enzyme-substrate (3-methylcatechol) complex revealed the substrate-binding process of extradiol dioxygenase. AkbC is composed of an N-domain and an active C-domain, which contains iron coordinated by a 2-His-1-carboxylate facial triad motif. The C-domain includes a beta-hairpin structure and a C-terminal tail. In substrate-bound AkbC, 3-methylcatechol interacts with the iron via a single hydroxyl group, which represents an intermediate stage in the substrate-binding process. Structure-based mutagenesis revealed that the C-terminal tail and beta-hairpin form part of the substrate-binding pocket that is responsible for substrate specificity by blocking substrate entry. Once a substrate enters the active site, these structural elements also play a role in the correct positioning of the substrate. Based on the results presented here, a putative substrate-binding mechanism is proposed. Substrate-binding mechanism of a type I extradiol dioxygenase.,Cho HJ, Kim K, Sohn SY, Cho HY, Kim KJ, Kim MH, Kim D, Kim E, Kang BS J Biol Chem. 2010 Sep 1. PMID:20810655[1] From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine. See AlsoReferences
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