Abstract
The luminescence emission properties of Cu-metallothioneins (from Neurospora crassa, Agaricus bisporus and livers of Bedlington terriers affected by copper toxicoses as well as of (Cu,Zn)-metallothionein from bovine fetal liver are reported. Upon excitation in the U.V., these proteins emit a largely red-shifted luminescence with a maximum at 565 nm attributable to the Cu(I)-thiolate chromophores of the proteins. Differences in the shapes of the spectra and the emission intensity are observed with (Cu,Zn)-metallothionein probably due to the influence of Zn ions or to a different coordination geometry of the Cu ions. The emissive properties of the Cu(I)-thiolate chromophore are compared with those of metallo-organic Cu(I)-mercaptide complexes.
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Beltramini, M., Münger, K., Germann, U.A., Lerch, K. (1987). Luminescence Emission from the Cu(I)-Thiolate Complex in Metallothioneins. In: Kägi, J.H.R., Kojima, Y. (eds) Metallothionein II. Experientia Supplementum, vol 52. Birkhäuser, Basel. https://doi.org/10.1007/978-3-0348-6784-9_17
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DOI: https://doi.org/10.1007/978-3-0348-6784-9_17
Publisher Name: Birkhäuser, Basel
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