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2cb2

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[[Image:2cb2.gif|left|200px]]
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{{Seed}}
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[[Image:2cb2.png|left|200px]]
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{{STRUCTURE_2cb2| PDB=2cb2 | SCENE= }}
{{STRUCTURE_2cb2| PDB=2cb2 | SCENE= }}
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'''SULFUR OXYGENASE REDUCTASE FROM ACIDIANUS AMBIVALENS'''
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===SULFUR OXYGENASE REDUCTASE FROM ACIDIANUS AMBIVALENS===
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==Overview==
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Numerous microorganisms oxidize sulfur for energy conservation and contribute to the global biogeochemical sulfur cycle. We have determined the 1.7 angstrom-resolution structure of the sulfur oxygenase reductase from the thermoacidophilic archaeon Acidianus ambivalens, which catalyzes an oxygen-dependent disproportionation of elemental sulfur. Twenty-four monomers form a large hollow sphere enclosing a positively charged nanocompartment. Apolar channels provide access for linear sulfur species. A cysteine persulfide and a low-potential mononuclear non-heme iron site ligated by a 2-His-1-carboxylate facial triad in a pocket of each subunit constitute the active sites, accessible from the inside of the sphere. The iron is likely the site of both sulfur oxidation and sulfur reduction.
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(as it appears on PubMed at http://www.pubmed.gov), where 16484493 is the PubMed ID number.
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{{ABSTRACT_PUBMED_16484493}}
==About this Structure==
==About this Structure==
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[[Category: Sulfur oxygenase reductase]]
[[Category: Sulfur oxygenase reductase]]
[[Category: Thermophilic]]
[[Category: Thermophilic]]
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''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Sat May 3 21:37:32 2008''
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''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Mon Jul 28 21:07:52 2008''

Revision as of 18:07, 28 July 2008

Image:2cb2.png

Template:STRUCTURE 2cb2

SULFUR OXYGENASE REDUCTASE FROM ACIDIANUS AMBIVALENS

Template:ABSTRACT PUBMED 16484493

About this Structure

2CB2 is a Single protein structure of sequence from Acidianus ambivalens. Full crystallographic information is available from OCA.

Reference

X-ray Structure of a self-compartmentalizing sulfur cycle metalloenzyme., Urich T, Gomes CM, Kletzin A, Frazao C, Science. 2006 Feb 17;311(5763):996-1000. PMID:16484493

Page seeded by OCA on Mon Jul 28 21:07:52 2008

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