View source for 7cns


==Crystal structure of Thermococcus kodakaraensis aconitase X (holo-form)==
<StructureSection load='7cns' size='340' side='right'caption='[[7cns]], [[Resolution|resolution]] 1.90&Aring;' scene=''>
== Structural highlights ==
<table><tr><td colspan='2'>[[7cns]] is a 2 chain structure with sequence from [https://en.wikipedia.org/wiki/Thermococcus_kodakarensis_KOD1 Thermococcus kodakarensis KOD1]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=7CNS OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=7CNS FirstGlance]. <br>
</td></tr><tr id='method'><td class="sblockLbl"><b>[[Empirical_models|Method:]]</b></td><td class="sblockDat" id="methodDat">X-ray diffraction, [[Resolution|Resolution]] 1.902&#8491;</td></tr>
<tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><scene name='pdbligand=F3S:FE3-S4+CLUSTER'>F3S</scene>, <scene name='pdbligand=PMV:(3R)-3-HYDROXY-3-METHYL-5-(PHOSPHONOOXY)PENTANOIC+ACID'>PMV</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=7cns FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=7cns OCA], [https://pdbe.org/7cns PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=7cns RCSB], [https://www.ebi.ac.uk/pdbsum/7cns PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=7cns ProSAT]</span></td></tr>
</table>
== Function ==
[https://www.uniprot.org/uniprot/Q5JGJ6_THEKO Q5JGJ6_THEKO] 
<div style="background-color:#fffaf0;">
== Publication Abstract from PubMed ==
Aconitase superfamily members catalyze the homologous isomerization of specific substrates by sequential dehydration and hydration and contain a [4Fe-4S] cluster. However, monomeric and heterodimeric types of function unknown aconitase X (AcnX) have recently been characterized as a cis-3-hydroxy-L-proline dehydratase (AcnX(Type-I)) and mevalonate 5-phosphate dehydratase (AcnX(Type-II)), respectively. We herein elucidated the crystal structures of AcnX(Type-I) from Agrobacterium tumefaciens (AtAcnX) and AcnX(Type-II) from Thermococcus kodakarensis (TkAcnX) without a ligand and in complex with substrates. AtAcnX and TkAcnX contained the [2Fe-2S] and [3Fe-4S] clusters, respectively, conforming to UV and EPR spectroscopy analyses. The binding sites of the [Fe-S] cluster and substrate were clearlydifferent from those that were completely conserved in other aconitase enzymes; however, theoverall structural frameworks and locations of active sites were partially similar to each other.These results provide novel insights into the evolutionary scenario of the aconitase superfamilybased on the recruitment hypothesis.

Crystal structures of aconitase X enzymes from bacteria and archaea provide insights into the molecular evolution of the aconitase superfamily.,Watanabe S, Murase Y, Watanabe Y, Sakurai Y, Tajima K Commun Biol. 2021 Jun 7;4(1):687. doi: 10.1038/s42003-021-02147-5. PMID:34099860<ref>PMID:34099860</ref>

From MEDLINE&reg;/PubMed&reg;, a database of the U.S. National Library of Medicine.<br>
</div>
<div class="pdbe-citations 7cns" style="background-color:#fffaf0;"></div>

==See Also==
*[[Aconitase 3D structures|Aconitase 3D structures]]
== References ==
<references/>
__TOC__
</StructureSection>
[[Category: Large Structures]]
[[Category: Thermococcus kodakarensis KOD1]]
[[Category: Murase Y]]
[[Category: Watanabe S]]
[[Category: Watanabe Y]]