Characterization of the blue copper site in oxidized azurin by extended x-ray absorption fine structure: Determination of a short Cu—S distance
AUTOR(ES)
Tullius, Thomas D.
RESUMO
The primary coordination environment of the “blue” copper ion in oxidized azurin has been elucidated by x-ray absorption spectroscopy. The most striking feature is the unambiguous presence of a very short copper-sulfur distance at 2.10 ± 0.02 Å. Nitrogen ligands, presumed to be from imidazoles, are found at 1.97 Å. There is some evidence that the copper coordination sphere may be completed by a second sulfur, the distance of which is determined with much less certainty.
ACESSO AO ARTIGO
http://www.pubmedcentral.nih.gov/articlerender.fcgi?artid=336051Documentos Relacionados
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