1hux

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

</td></tr><tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><scene name='pdbligand=ADP:ADENOSINE-5-DIPHOSPHATE'>ADP</scene>, <scene name='pdbligand=SF4:IRON/SULFUR+CLUSTER'>SF4</scene></td></tr>

<tr id='gene'><td class="sblockLbl"><b>[[Gene|Gene:]]</b></td><td class="sblockDat">HGDC ([http://www.ncbi.nlm.nih.gov/Taxonomy/Browser/wwwtax.cgi?mode=Info&srchmode=5&id=905 ACIFE])</td></tr>

<tr id='resources'><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[http://proteopedia.org/fgij/fg.htm?mol=1hux FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=1hux OCA], [http://pdbe.org/1hux PDBe], [http://www.rcsb.org/pdb/explore.do?structureId=1hux RCSB], [http://www.ebi.ac.uk/pdbsum/1hux PDBsum], [http://prosat.h-its.org/prosat/prosatexe?pdbcode=1hux ProSAT]</span></td></tr>

[[http://www.uniprot.org/uniprot/HGDC_ACIFV HGDC_ACIFV]] Required for the activation of (R)-2-hydroxyglutaryl-CoA dehydratase. This protein is extremely sensitive towards oxygen.

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== Publication Abstract from PubMed ==

Acidaminococcus fermentans degrades glutamate via the hydroxyglutarate pathway, which involves the syn-elimination of water from (R)-2-hydroxyglutaryl-CoA in a key reaction of the pathway. This anaerobic process is catalyzed by 2-hydroxyglutaryl-CoA dehydratase, an enzyme with two components (A and D) that reversibly associate during reaction cycles. Component A (CompA), a homodimeric protein of 2x27 kDa, contains a single, bridging [4Fe-4S] cluster and uses the hydrolysis of ATP to deliver an electron to the dehydratase component (CompD), where the electron is used catalytically. The structure of the extremely oxygen-sensitive CompA protein was solved by X-ray crystallography to 3 A resolution. The protein was found to be a member of the actin fold family, revealing a similar architecture and nucleotide-binding site. The key differences between CompA and other members of the actin fold family are: (i) the presence of a cluster binding segment, the "cluster helix"; (ii) the [4Fe-4S] cluster; and (iii) the location of the homodimer interface, which involves the bridging cluster. Possible reaction mechanisms are discussed in light of the close structural similarity to members of the actin-fold family and the functional similarity to the nitrogenase Fe- protein.

Crystal structure of the Acidaminococcus fermentans 2-hydroxyglutaryl-CoA dehydratase component A.,Locher KP, Hans M, Yeh AP, Schmid B, Buckel W, Rees DC J Mol Biol. 2001 Mar 16;307(1):297-308. PMID:11243821<ref>PMID:11243821</ref>

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

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<div class="pdbe-citations 1hux" style="background-color:#fffaf0;"></div>

== References ==

<references/>

[[Category: Acife]]

[[Category: Buckel, W]]

[[Category: Hans, M]]

[[Category: Locher, K P]]

[[Category: Rees, D C]]

[[Category: Schmid, B]]

[[Category: Yeh, A P]]

[[Category: Metal binding protein]]