Circular dichroism investigation of the (L lysine)n-Cu(II) (1:1) systems with n = 4 and n = 25

Bioinorganic Chemistry
A Garnier, L Tosi

Abstract

The study of the (L Lys)n-Cu(II) (1:1) system with n = 4 and n = 25 using circular dichroism (CD) data has provided evidence indicating the formation of two complexes in a two-step process. In the first of these complexes, obtained at pH 6.6, the alpha-amino terminal group and the adjacent deprotonated amide nitrogen are bound to the metal. In the second, additional amino nitrogens of side chains lie at the other two corners of the coordination square. A comprehensive investigation of changes occuring in spectral patterns when coordination takes place enables the assignment of three bands that are characteristic to each type of nitrogen coordination.

References

Feb 7, 1977·Biochemical and Biophysical Research Communications·A Garnier, L Tosi
Jan 1, 1978·Bioinorganic Chemistry·C V PhanA Garnier
Jul 15, 1970·Journal of the American Chemical Society·J M Tsangaris, R B Martin
Jun 1, 1968·Canadian Journal of Biochemistry·B Sarkar, Y Wigfield
Jan 29, 1969·Journal of the American Chemical Society·J M TsangarisR B Martin

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Citations

Oct 21, 2014·Macromolecular Bioscience·Jean-Christophe RossiMaria Francesca Ottaviani
Sep 1, 1985·Journal of Inorganic Biochemistry·J P Albertini, A Garnier-Suillerot

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