The C2H2 zinc finger transcription factors are likely targets for Ni(ii) toxicity

E Kurowska, J Sasin-Kurowska, A Bonna… - Metallomics, 2011 - academic.oup.com
Ni (ii) ions are able to hydrolyze Naa-(Ser/Thr) peptide bonds in Naa-(Ser/Thr)-Xaa-His-Zaa
sequences. We found that various human transcription factors contain such nickel hydrolytic …

Nickel(ii)-promoted specific hydrolysis of zinc finger proteins

A Belczyk-Ciesielska, B Csipak, B Hajdu… - Metallomics, 2018 - academic.oup.com
In this work we demonstrate that the previously described reaction of sequence specific Ni
(ii)-dependent hydrolytic peptide bond cleavage can be performed in complex …

Spectroscopic characterization of copper (I) binding to apo and metal-reconstituted zinc finger peptides

RT Doku, G Park, KE Wheeler, KE Splan - JBIC Journal of Biological …, 2013 - Springer
Cu (I) exhibits high affinity for thiolate ligands, suggesting that thiol-rich zinc or iron binding
sites may be subject to disruption during copper stress conditions. Zinc fingers constitute a …

Cys redox reactions and metal binding of a Cys2His2 zinc finger

JL Larabee, JR Hocker, JS Hanas - Archives of biochemistry and …, 2005 - Elsevier
The elucidation of mechanisms by which cysteine (Cys) redox reactions influence metal
binding to zinc finger domains is important for understanding the structure and function of …

Zinc finger proteins as potential targets for toxic metal ions: differential effects on structure and function

A Hartwig - Antioxidants and Redox Signaling, 2001 - liebertpub.com
Zinc finger structures are frequently found in transcription factors and DNA repair proteins,
mediating DNA-protein and protein-protein binding. As low concentrations of transition metal …

Properties of the Sp1 zinc finger 3 peptide: coordination chemistry, redox reactions, and metal binding competition with metallothionein

MC Posewitz, DE Wilcox - Chemical research in toxicology, 1995 - ACS Publications
Toxic and/or carcinogenic consequences may result from metal ionsubstitution for the Zn-(II)
in transcription factors containing zinc fingers, and the small Cys-rich metal-binding protein …

Use of XAS for the elucidation of metal structure and function: applications to nickel biochemistry, molecular toxicology, and carcinogenesis.

PE Carrington, F Al-Mjeni, MA Zoroddu… - Environmental …, 2002 - ehp.niehs.nih.gov
Nickel has been shown to be an essential trace element involved in the metabolism of
several species of bacteria, archea, and plants. In these organisms, nickel is involved in …

Metal binding properties of zinc fingers with a naturally altered metal binding site

K Kluska, J Adamczyk, A Krężel - Metallomics, 2018 - academic.oup.com
Zinc fingers (ZFs) are among the most abundant motifs found in proteins, and are commonly
known for their structural role. Classical ZFs (CCHH) are part of the transcription factors that …

Interactions of Nickel(II) with Histones:  Interactions of Nickel(II) with CH3CO-Thr-Glu-Ser-His-His-Lys-NH2, a Peptide Modeling the Potential Metal Binding Site in …

W Bal, J Lukszo, K Bialkowski… - Chemical research in …, 1998 - ACS Publications
A combined pH-metric and spectroscopic (UV/vis, CD, NMR) study of the Ni (II) binding to
CH3CO-Thr-Glu-Ser-His-His-Lys-NH2 (AcTESHHKam), a blocked hexapeptide modeling a …

NMR identification of heavy metal-binding sites in a synthetic zinc finger peptide: toxicological implications for the interactions of xenobiotic metals with zinc finger …

M Razmiafshari, J Kao, A d'Avignon… - Toxicology and applied …, 2001 - Elsevier
Lead (Pb), mercury (Hg), and cadmium (Cd) are toxic and interfere with protein metal-
binding sites. The Cys2/His2 zinc finger is a structural motif required for sequence-specific …