Abstract
Auration of zinc finger peptides represents a topic of wide interest in bioinorganic chemistry as well as a fundamental problem for inorganic chemistry, since we are evaluating the replacement of a tetrahedrally-coordinated Zn(II) by a linear-coordinated Au(I). The compound [AuCl(Et3P)] (I-1) was selected as Au(I) donor, and the interaction with NCp7 (ZnF2) and Sp1 (F3) were studied by traveling-wave ion mobility mass spectrometry (TWIM-MS) coupled with collision induced dissociation (CID). This approach allowed inequivocal elucidation of specific binding sites and modes of gold-modified NCp7 (ZnF2) and Sp1 (ZnF3). While linear Cys-Au-Cys is indicated for NCp7 (ZnF2), a Cys-Au-His mode is indicated for the Sp1 (ZnF3) case.
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Ferraz de Paiva, R.E. (2018). Probing the Protein: Ion Mobility Spectrometry. In: Gold(I,III) Complexes Designed for Selective Targeting and Inhibition of Zinc Finger Proteins. Springer Theses. Springer, Cham. https://doi.org/10.1007/978-3-030-00853-6_2
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