7rxn

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[[Image:7rxn.gif|left|200px]]
[[Image:7rxn.gif|left|200px]]
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{{Structure
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{{STRUCTURE_7rxn| PDB=7rxn | SCENE= }}
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|RESOURCES=<span class='plainlinks'>[http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=7rxn FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=7rxn OCA], [http://www.ebi.ac.uk/pdbsum/7rxn PDBsum], [http://www.rcsb.org/pdb/explore.do?structureId=7rxn RCSB]</span>
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'''STRUCTURE OF RUBREDOXIN FROM DESULFOVIBRIO VULGARIS AT 1.5 A RESOLUTION'''
'''STRUCTURE OF RUBREDOXIN FROM DESULFOVIBRIO VULGARIS AT 1.5 A RESOLUTION'''
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==About this Structure==
==About this Structure==
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7RXN is a [[Single protein]] structure of sequence from [http://en.wikipedia.org/wiki/Desulfovibrio_vulgaris Desulfovibrio vulgaris]. This structure supersedes the now removed PDB entry 3RXN. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=7RXN OCA].
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7RXN is a [[Single protein]] structure of sequence from [http://en.wikipedia.org/wiki/Desulfovibrio_vulgaris Desulfovibrio vulgaris]. This structure supersedes the now removed PDB entry [http://oca.weizmann.ac.il/oca-bin/send-pdb?obs=1&id=3rxn 3rxn]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=7RXN OCA].
==Reference==
==Reference==
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[[Category: Jensen, L H.]]
[[Category: Jensen, L H.]]
[[Category: Sieker, L C.]]
[[Category: Sieker, L C.]]
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[[Category: electron transfer(iron-sulfur protein)]]
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''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Sun May 4 22:47:43 2008''
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''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Mon Mar 31 05:44:45 2008''
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Revision as of 19:47, 4 May 2008

Template:STRUCTURE 7rxn

STRUCTURE OF RUBREDOXIN FROM DESULFOVIBRIO VULGARIS AT 1.5 A RESOLUTION


Overview

The X-ray model of rubredoxin from Desulfovibrio vulgaris has been refined against 1.5 A X-ray diffraction data collected on a diffractometer. The final model comprises 395 non-hydrogen protein atoms, and 180 solvent O atoms. The final R-value for the model with calculated H atom positions included as fixed contributions is 0.098 over all reflections greater than 2 sigma I from infinity to 1.5 A. The error in co-ordinates is estimated to be 0.08 A. The solvent model was twice redetermined during the later stages of refinement and was instrumental in its success. One sequence error has been detected and corrected (Thr21----Asp). The iron-sulfur site bond angles are distorted from true tetrahedral symmetry, as found in other rubredoxin structures. A significant deviation from tetrahedral angles is seen at C alpha atoms 9, 10, 42 and 43, interior angles of the loops binding the iron atom. The planes of two aromatic groups, Tyr4 and Trp37, are nearly parallel to, and lie under, an extended system of atoms that includes the peptide bonds preceding the first cysteine residue of each cysteine loop as well as the cysteine side-chain, the iron, and the cysteine side-chain of the opposite loop, forming a previously unrecognized extended system that may function in electron transfer.

About this Structure

7RXN is a Single protein structure of sequence from Desulfovibrio vulgaris. This structure supersedes the now removed PDB entry 3rxn. Full crystallographic information is available from OCA.

Reference

Structure of rubredoxin from Desulfovibrio vulgaris at 1.5 A resolution., Adman ET, Sieker LC, Jensen LH, J Mol Biol. 1991 Jan 20;217(2):337-52. PMID:1992166 Page seeded by OCA on Sun May 4 22:47:43 2008

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