ArticleJournal of biological inorganic chemistry : JBIC : a publication of the Society of Biological Inorganic Chemistry2026
Impact of the spatial distribution of positive charges on the catalytic activity of NiSOD bioinspired complexes.
Article in Journal of biological inorganic chemistry : JBIC : a publication of the Society of Biological Inorganic Chemistry, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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Abstract
In order to mitigate superoxide-induced damage, cells rely on superoxide dismutases (SODs), a family of metalloenzymes that catalyze the dismutation of superoxide. These enzymes display a positively-charged substrate entrance channel for superoxide guidance to the active metal center. ATCUN-like Ni(II) complexes have been shown to mimic NiSOD effectively and benefit from versatile peptide structures, which are ideal for introducing positive charges through arginine residues at various positions to modulate catalytic properties. We describe here five novel ATCUN-like Ni(II) complexes, with arginines at various positions in close proximity to the metal center. All the peptides form monometallic square planar Ni(II) complexes in water at pH 7.4, with either a N
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