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http://bura.brunel.ac.uk/handle/2438/4658
Title: | The iron binding-sites of chicken ovotransferrin |
Authors: | Lindley, PF Evans, RW Garratt, RC Hasnain, SS |
Keywords: | EXAFS spectrum;Diferric chicken ovotransferrin;XANES spectrum;Freeze-drying;Iron-binding sites;Fragmentation |
Issue Date: | 1986 |
Publisher: | EDP Sciences |
Citation: | Journal de Physique, 47(C8): 1189-1192, December 1986 |
Abstract: | We have shown previously that the EXAFS spectrum of diferric chicken ovotransferrin (Fe2COT) can only be adequately simulated assuming a split first shell co-ordination [1]. EXAFS and XANES spectra of Fe2COT measured in solution and as a freeze-dried powder provide evidence for perturbation of the iron-binding sites on freeze-drying which involves the loss of one of the long (~2.04 Å) first shell ligands (presumably water). Measurement of the XANES of the C-terminal monoferric COT and a C-terminal domain fragment suggests that the metal binding site remains largely unperturbed by the fragmentation process. The possibility of site interaction is briefly discussed. |
URI: | http://jphyscol.journaldephysique.org/index.php?option=com_article&access=standard&Itemid=129&url=/articles/jphyscol/abs/1986/08/jphyscol198647C8233/jphyscol198647C8233.html http://bura.brunel.ac.uk/handle/2438/4658 |
DOI: | http://dx.doi.org/10.1051/jphyscol:19868233 |
ISSN: | 1155-4304 |
Appears in Collections: | Biological Sciences Dept of Life Sciences Research Papers |
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