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1fxd

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[[Image:1fxd.gif|left|200px]]
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{{STRUCTURE_1fxd| PDB=1fxd | SCENE= }}
{{STRUCTURE_1fxd| PDB=1fxd | SCENE= }}
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'''REFINED CRYSTAL STRUCTURE OF FERREDOXIN II FROM DESULFOVIBRIO GIGAS AT 1.7 ANGSTROMS'''
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===REFINED CRYSTAL STRUCTURE OF FERREDOXIN II FROM DESULFOVIBRIO GIGAS AT 1.7 ANGSTROMS===
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==Overview==
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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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(as it appears on PubMed at http://www.pubmed.gov), where 2056535 is the PubMed ID number.
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{{ABSTRACT_PUBMED_2056535}}
==About this Structure==
==About this Structure==
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[[Category: Kissinger, C R.]]
[[Category: Kissinger, C R.]]
[[Category: Sieker, L C.]]
[[Category: Sieker, L C.]]
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''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Fri May 2 16:52:19 2008''
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''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Tue Jul 1 04:05:15 2008''

Revision as of 01:05, 1 July 2008

Image:1fxd.png

Template:STRUCTURE 1fxd

REFINED CRYSTAL STRUCTURE OF FERREDOXIN II FROM DESULFOVIBRIO GIGAS AT 1.7 ANGSTROMS

Template:ABSTRACT PUBMED 2056535

About this Structure

1FXD is a Single protein structure of sequence from Desulfovibrio gigas. Full crystallographic information is available from OCA.

Reference

Refined crystal structure of ferredoxin II from Desulfovibrio gigas at 1.7 A., Kissinger CR, Sieker LC, Adman ET, Jensen LH, J Mol Biol. 1991 Jun 20;219(4):693-715. PMID:2056535

Page seeded by OCA on Tue Jul 1 04:05:15 2008

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