3b53

<table><tr><td colspan='2'>[[3b53]] is a 1 chain structure with sequence from [https://en.wikipedia.org/wiki/Carhz Carhz]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=3B53 OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=3B53 FirstGlance]. <br>

</td></tr><tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><scene name='pdbligand=FE2:FE+(II)+ION'>FE2</scene>, <scene name='pdbligand=FES:FE2/S2+(INORGANIC)+CLUSTER'>FES</scene>, <scene name='pdbligand=SF4:IRON/SULFUR+CLUSTER'>SF4</scene>, <scene name='pdbligand=WCC:FE(3)-NI(1)-S(4)+CLUSTER'>WCC</scene></td></tr>

<tr id='activity'><td class="sblockLbl"><b>Activity:</b></td><td class="sblockDat"><span class='plainlinks'>[https://en.wikipedia.org/wiki/Carbon-monoxide_dehydrogenase_(acceptor) Carbon-monoxide dehydrogenase (acceptor)], with EC number [https://www.brenda-enzymes.info/php/result_flat.php4?ecno=1.2.99.2 1.2.99.2] </span></td></tr>

[[https://www.uniprot.org/uniprot/COOS2_CARHZ COOS2_CARHZ]] CODH oxidizes carbon monoxide coupled, via CooF, to the reduction of a hydrogen cation by a hydrogenase (possibly CooH) (By similarity).

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== Publication Abstract from PubMed ==

Anaerobic CO dehydrogenases catalyze the reversible oxidation of CO to CO2 at a complex Ni-, Fe-, and S-containing metal center called cluster C. We report crystal structures of CO dehydrogenase II from Carboxydothermus hydrogenoformans in three different states. In a reduced state, exogenous CO2 supplied in solution is bound and reductively activated by cluster C. In the intermediate structure, CO2 acts as a bridging ligand between Ni and the asymmetrically coordinated Fe, where it completes the square-planar coordination of the Ni ion. It replaces a water/hydroxo ligand bound to the Fe ion in the other two states. The structures define the mechanism of CO oxidation and CO2 reduction at the Ni-Fe site of cluster C.

Carbon dioxide activation at the Ni,Fe-cluster of anaerobic carbon monoxide dehydrogenase.,Jeoung JH, Dobbek H Science. 2007 Nov 30;318(5855):1461-4. PMID:18048691<ref>PMID:18048691</ref>

From MEDLINE&reg;/PubMed&reg;, a database of the U.S. National Library of Medicine.<br>

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== References ==

<references/>

[[Category: Carhz]]

[[Category: Dobbek, H]]

[[Category: Jeoung, J H]]

[[Category: Oxidoreductase]]