Dynamic fluorescence in copper proteins Selected examples
- Author(s): Rosato, N
- Gratton, E
- Mei, G
- Savini, I
- Finazzi Agrò, A
- et al.
Published Web Locationhttps://doi.org/10.1007/BF01179522
The fluorescence properties of three copper proteins, namely human superoxide dismutase, Pseudomonas aeruginosa azurin and Thiobacillus versutus amicyanin have been studied. All these proteins show a non-exponential decay of fluorescence, though the tryptophanyl residues responsible for the emission are very differently located in the three proteins. All the three decays can be fitted by at least two lifetimes or better with one or two lorentzian-shaped, continuous distributions of lifetime. In each case the removal of copper affects the quantum yield of fluorescence without affecting the shape of the emission. © 1990 Springer-Verlag.
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