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Predicate | Object |
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rdf:type | |
lifeskim:mentions | |
pubmed:issue |
4
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pubmed:dateCreated |
1991-7-29
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pubmed:abstractText |
The crystal structure of ferredoxin II from Desulfovibrio gigas has been determined using phasing from anomalous scattering data at a resolution of 1.7 A and refined to an R-factor of 0.157. The molecule has an overall chain fold similar to that of the other bacterial ferredoxins of known structure. The molecule contains a single 3Fe-4S cluster with geometry indistinguishable from the 4Fe-4S clusters, and a disulfide bond near the site corresponding to the position of the second cluster of two-cluster ferredoxins. The cluster is bound by cysteine residues 8, 14 and 50. The side-chain of cysteine 11 extends away from the cluster, but could rotate to become the fourth cysteine ligand in the four-iron form of the molecule given a local adjustment of the polypeptide chain. This residue is modified, however, by what appears to be a methanethiol group. There are a total of eight NH . . . S bonds to the inorganic and cysteine sulfur atoms of the Fe-S cluster. There is an additional residue found that is not reported for the chemical sequence: according to the electron density a valine residue should be inserted after residue 55.
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pubmed:grant | |
pubmed:language |
eng
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pubmed:journal | |
pubmed:citationSubset |
IM
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pubmed:chemical | |
pubmed:status |
MEDLINE
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pubmed:month |
Jun
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pubmed:issn |
0022-2836
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pubmed:author | |
pubmed:issnType |
Print
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pubmed:day |
20
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pubmed:volume |
219
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pubmed:owner |
NLM
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pubmed:authorsComplete |
Y
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pubmed:pagination |
693-715
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pubmed:dateRevised |
2007-11-14
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pubmed:meshHeading |
pubmed-meshheading:2056535-Amino Acid Sequence,
pubmed-meshheading:2056535-Crystallization,
pubmed-meshheading:2056535-Cysteine,
pubmed-meshheading:2056535-Desulfovibrio,
pubmed-meshheading:2056535-Ferredoxins,
pubmed-meshheading:2056535-Hydrogen Bonding,
pubmed-meshheading:2056535-Iron,
pubmed-meshheading:2056535-Models, Molecular,
pubmed-meshheading:2056535-Molecular Sequence Data,
pubmed-meshheading:2056535-Molecular Structure,
pubmed-meshheading:2056535-Protein Conformation,
pubmed-meshheading:2056535-Sulfur,
pubmed-meshheading:2056535-Temperature,
pubmed-meshheading:2056535-X-Ray Diffraction
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pubmed:year |
1991
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pubmed:articleTitle |
Refined crystal structure of ferredoxin II from Desulfovibrio gigas at 1.7 A.
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pubmed:affiliation |
Department of Biological Structure, University of Washington, Seattle 98195.
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pubmed:publicationType |
Journal Article,
Research Support, U.S. Gov't, P.H.S.
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