7rxn

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{{STRUCTURE_7rxn| PDB=7rxn | SCENE= }}
{{STRUCTURE_7rxn| PDB=7rxn | SCENE= }}
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'''STRUCTURE OF RUBREDOXIN FROM DESULFOVIBRIO VULGARIS AT 1.5 A RESOLUTION'''
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===STRUCTURE OF RUBREDOXIN FROM DESULFOVIBRIO VULGARIS AT 1.5 A RESOLUTION===
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==Overview==
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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.
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{{ABSTRACT_PUBMED_1992166}}
==About this Structure==
==About this Structure==
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[[Category: Jensen, L H.]]
[[Category: Jensen, L H.]]
[[Category: Sieker, L C.]]
[[Category: Sieker, L C.]]
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Revision as of 12:02, 3 July 2008

Template:STRUCTURE 7rxn

STRUCTURE OF RUBREDOXIN FROM DESULFOVIBRIO VULGARIS AT 1.5 A RESOLUTION

Template:ABSTRACT PUBMED 1992166

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

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