Luminescence Emission from the Cu(I)-Thiolate Complex in Metallothioneins
- 1 January 1987
- book chapter
- Published by Springer Nature
- Vol. 52, 237-241
- https://doi.org/10.1007/978-3-0348-6784-9_17
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.Keywords
This publication has 13 references indexed in Scilit:
- Copper metallothionein from the fungus Agaricus bisporus: chemical and spectroscopic propertiesBiochemistry, 1985
- Metal substitution of Neurospora copper metallothioneinBiochemistry, 1984
- Spectroscopic studies on Neurospora copper metallothioneinBiochemistry, 1983
- Luminescence of some CuI complexesJournal of the Chemical Society, Faraday Transactions 2: Molecular and Chemical Physics, 1982
- Luminescence properties of neurospora copper metallothioneinFEBS Letters, 1981
- Copper metallothionein, a copper-binding protein from Neurospora crassaNature, 1980
- Cu+ Luminescent Centre in LiCl Single CrystalsPhysica Status Solidi (b), 1978
- Model studies on the coordination of copper in enzymes. IV. Structure and stability of cuprous complexes with sulfur-containing ligandsJournal of the American Chemical Society, 1976
- FLUORESCENCE OF Cu, Au AND Ag MERCAPTIDESPhotochemistry and Photobiology, 1971
- Solution Luminescence of Metal ComplexesApplied Spectroscopy, 1970