Retraction: Detailed Mössbauer Characterization of Fe 2+ Fur, the Active Form of the Ferric Uptake Regulation Protein from E. coli and Density Functional Calculations on Some Related Models
The Fe 2+ center of iron‐substituted ferric uptake regulation protein (Fur) has been fully characterized by applied‐field Mössbauer spectroscopy, and two structural models for this center in Fur from E. coli (EC‐Fe 2+ Fur) have been developed by combining the crystallographic data available for Fur...
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Veröffentlicht in: | European journal of inorganic chemistry 2009-07, Vol.2009 (20), p.2959-2966 |
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Sprache: | eng |
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Zusammenfassung: | The Fe
2+
center of iron‐substituted ferric uptake regulation protein (Fur) has been fully characterized by applied‐field Mössbauer spectroscopy, and two structural models for this center in Fur from
E. coli
(EC‐Fe
2+
Fur) have been developed by combining the crystallographic data available for Fur from
Pseudomonas aeruginosa
(PA‐Fur) in complex with Zn
2+
and the EXAFS data for a PA‐Fur sample dialyzed against a Fe
2+
solution or EC‐Fur in complex with Fe
2+
. The Mössbauer (isomer shift excluded) and spin‐Hamiltonian parameters have been estimated by density functional calculations for these models and compared to the experimental data. The geometry and the environment of the iron‐binding center in EC‐Fur and PA‐Fur are found to be similar, and the comparison of the observed and calculated quadrupole splitting values indicates that the model with a (3O,2N,1O) coordination (Δ
E
Q
> 0) is a better representation of the environment around the iron center in EC‐Fe
2+
Fur.(© Wiley‐VCH Verlag GmbH & Co. KGaA, 69451 Weinheim, Germany, 2009)
The article “Detailed Mössbauer Characterization of Fe
2+
Fur, the Active Form of the Ferric Uptake Regulation Protein from
E. coli
and Density Functional Calculations on Some Related Models” by Olivier Horner, Jean‐Louis Oddou, Claudine Jeandey, Isabelle Michaud‐Soret, Jean‐Marie Mouesca, published online on June 3, 2009 in Wiley Interscience (www.interscience.wiley.com, 10.1002/ejic.200900091) and in print (
Eur. J. Inorg. Chem.
2009
, 2959–2966), has been retracted (October 6, 2009) by the journal editor‐in‐chief, Dr Karen Hindson, and Wiley‐VCH, in accordance with the “EUCheMS Ethical Guidelines for Publication in Journals and Reviews” adhered to by the journal (
EUCheMS Ethical Guidelines for Publication in Journals and Reviews
,
2006
, http://www.euchems.org/Publications/index.asp), due to lack of agreement among the authors regarding its publication. |
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ISSN: | 1434-1948 1099-0682 |
DOI: | 10.1002/ejic.200900091 |