1q0g

<table><tr><td colspan='2'>[[1q0g]] is a 12 chain structure with sequence from [http://en.wikipedia.org/wiki/Streptomyces_seoulensis Streptomyces seoulensis]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1Q0G OCA]. For a <b>guided tour on the structure components</b> use [http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=1Q0G FirstGlance]. <br>

</td></tr><tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat"><scene name='pdbligand=NI:NICKEL+(II)+ION'>NI</scene>, <scene name='pdbligand=SO4:SULFATE+ION'>SO4</scene></td></tr>

<tr id='related'><td class="sblockLbl"><b>[[Related_structure|Related:]]</b></td><td class="sblockDat">[[1q0d|1q0d]], [[1q0f|1q0f]], [[1q0k|1q0k]], [[1q0m|1q0m]]</td></tr>

<tr id='activity'><td class="sblockLbl"><b>Activity:</b></td><td class="sblockDat"><span class='plainlinks'>[http://en.wikipedia.org/wiki/Superoxide_dismutase Superoxide dismutase], with EC number [http://www.brenda-enzymes.info/php/result_flat.php4?ecno=1.15.1.1 1.15.1.1] </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=1q0g FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=1q0g OCA], [http://pdbe.org/1q0g PDBe], [http://www.rcsb.org/pdb/explore.do?structureId=1q0g RCSB], [http://www.ebi.ac.uk/pdbsum/1q0g PDBsum], [http://prosat.h-its.org/prosat/prosatexe?pdbcode=1q0g ProSAT]</span></td></tr>

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== Publication Abstract from PubMed ==

Superoxide dismutases (SODs, EC 1.15.1.1) are ubiquitous enzymes that efficiently catalyze the dismutation of superoxide radical anions to protect biological molecules from oxidative damage. The crystal structure of nickel-containing SOD (NiSOD) from Streptomyces seoulensis was determined for the resting, x-ray-reduced, and thiosulfate-reduced enzyme state. NiSOD is a homohexamer consisting of four-helix-bundle subunits. The catalytic center resides in the N-terminal active-site loop, where a Ni(III) ion is coordinated by the amino group of His-1, the amide group of Cys-2, two thiolate groups of Cys-2 and Cys-6, and the imidazolate of His-1 as axial ligand that is lost in the chemically reduced state as well as after x-ray-induced reduction. This structure represents a third class of SODs concerning the catalytic metal species, subunit structure, and oligomeric organization. It adds a member to the small number of Ni-metalloenzymes and contributes with its Ni(III) active site to the general understanding of Ni-related biochemistry. NiSOD is shown to occur also in bacteria other than Streptomyces and is predicted to be present in some cyanobacteria.

Crystal structure of nickel-containing superoxide dismutase reveals another type of active site.,Wuerges J, Lee JW, Yim YI, Yim HS, Kang SO, Djinovic Carugo K Proc Natl Acad Sci U S A. 2004 Jun 8;101(23):8569-74. Epub 2004 Jun 1. PMID:15173586<ref>PMID:15173586</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 1q0g" style="background-color:#fffaf0;"></div>

*[[Superoxide Dismutase|Superoxide Dismutase]]

[[Category: Superoxide dismutase]]

[[Category: Carugo, K Djinovic]]

[[Category: Kang, S O]]

[[Category: Lee, J W]]

[[Category: Wuerges, J]]

[[Category: Yim, H S]]

[[Category: Yim, Y I]]

[[Category: Oxidoreductase]]