1otj
From Proteopedia
(Difference between revisions)
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<StructureSection load='1otj' size='340' side='right'caption='[[1otj]], [[Resolution|resolution]] 1.90Å' scene=''> | <StructureSection load='1otj' size='340' side='right'caption='[[1otj]], [[Resolution|resolution]] 1.90Å' scene=''> | ||
== Structural highlights == | == Structural highlights == | ||
- | <table><tr><td colspan='2'>[[1otj]] is a 4 chain structure with sequence from [https://en.wikipedia.org/wiki/ | + | <table><tr><td colspan='2'>[[1otj]] is a 4 chain structure with sequence from [https://en.wikipedia.org/wiki/Escherichia_coli Escherichia coli]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1OTJ OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=1OTJ FirstGlance]. <br> |
- | </td></tr><tr id=' | + | </td></tr><tr id='method'><td class="sblockLbl"><b>[[Empirical_models|Method:]]</b></td><td class="sblockDat" id="methodDat">X-ray diffraction, [[Resolution|Resolution]] 1.9Å</td></tr> |
- | <tr id=' | + | <tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><scene name='pdbligand=CL:CHLORIDE+ION'>CL</scene>, <scene name='pdbligand=TAU:2-AMINOETHANESULFONIC+ACID'>TAU</scene></td></tr> |
- | + | ||
<tr id='resources'><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[https://proteopedia.org/fgij/fg.htm?mol=1otj FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=1otj OCA], [https://pdbe.org/1otj PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=1otj RCSB], [https://www.ebi.ac.uk/pdbsum/1otj PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=1otj ProSAT]</span></td></tr> | <tr id='resources'><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[https://proteopedia.org/fgij/fg.htm?mol=1otj FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=1otj OCA], [https://pdbe.org/1otj PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=1otj RCSB], [https://www.ebi.ac.uk/pdbsum/1otj PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=1otj ProSAT]</span></td></tr> | ||
</table> | </table> | ||
== Function == | == Function == | ||
- | + | [https://www.uniprot.org/uniprot/TAUD_ECOLI TAUD_ECOLI] Catalyzes the conversion of taurine and alpha ketoglutarate to sulfite, aminoacetaldehyde and succinate. Required for the utilization of taurine (2-aminoethanesulfonic acid) as an alternative sulfur source. Pentane-sulfonic acid, 3-(N-morpholino)propanesulfonic acid and 1,3-dioxo-2-isoindolineethanesulfonic acid are also substrates for this enzyme. | |
== Evolutionary Conservation == | == Evolutionary Conservation == | ||
[[Image:Consurf_key_small.gif|200px|right]] | [[Image:Consurf_key_small.gif|200px|right]] | ||
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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=1otj ConSurf]. | </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=1otj ConSurf]. | ||
<div style="clear:both"></div> | <div style="clear:both"></div> | ||
- | <div style="background-color:#fffaf0;"> | ||
- | == Publication Abstract from PubMed == | ||
- | The enzymes in the alpha-ketoglutarate (alphaKG) dependent dioxygenase superfamily represent the largest class of non-heme iron oxidases and have important medical, ecological, and biotechnological roles. One such enzyme, taurine/alpha-ketoglutarate dioxygenase (TauD), catalyzes the conversion of 2-aminoethanesulfonate (taurine) to sulfite and aminoacetaldehyde while decomposing alphaKG to succinate and CO(2). This alphaKG dependent dioxygenase is expressed in Escherichia coli under sulfur starvation conditions and allows the cell to utilize taurine, and other similar sulfonates in the environment, as an alternative sulfur source. In this work, we report the structures of the apo and holo forms of TauD to 1.9 A resolution (R(cryst) = 21.2%, R(free) = 24.9%) and 2.5 A resolution (R(cryst) = 22.5%, R(free) = 27.8%), respectively. The models reported herein provide significant new insight into the substrate orientations at the active site and the conformational changes that are induced upon taurine binding. Furthermore, analysis of our crystallographic data coupled with reanalysis of the crystallographic model (resolution = 3.0 A, R(cryst) = 28.1, R(free) = 32.0) presented by Elkins et al. (Biochemistry (2002) 41, 5185-5192) reveals an alternative oligomeric arrangement for the enzyme that is consistent with the conserved primary and secondary structure elements of other alphaKG dependent dioxygenases. | ||
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- | Substrate-induced conformational changes in Escherichia coli taurine/alpha-ketoglutarate dioxygenase and insight into the oligomeric structure.,O'Brien JR, Schuller DJ, Yang VS, Dillard BD, Lanzilotta WN Biochemistry. 2003 May 20;42(19):5547-54. PMID:12741810<ref>PMID:12741810</ref> | ||
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- | From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.<br> | ||
- | </div> | ||
- | <div class="pdbe-citations 1otj" style="background-color:#fffaf0;"></div> | ||
==See Also== | ==See Also== | ||
*[[Dioxygenase 3D structures|Dioxygenase 3D structures]] | *[[Dioxygenase 3D structures|Dioxygenase 3D structures]] | ||
- | == References == | ||
- | <references/> | ||
__TOC__ | __TOC__ | ||
</StructureSection> | </StructureSection> | ||
- | [[Category: | + | [[Category: Escherichia coli]] |
[[Category: Large Structures]] | [[Category: Large Structures]] | ||
- | [[Category: | + | [[Category: Dillard BD]] |
- | [[Category: | + | [[Category: Lanzilotta WN]] |
- | [[Category: | + | [[Category: O'Brien JR]] |
- | + | [[Category: Schuller DJ]] | |
- | [[Category: Schuller | + | [[Category: Yang VS]] |
- | [[Category: Yang | + | |
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Current revision
Crystal structure of APO (iron-free) TauD
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