Vijeesh Vayyattil on Muck Rack

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Reactive oxygen generation by minimal copper binding peptide motifs

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By Ruchi Sharma, Nina Lock, Vijeesh Vayyattil, Maciej B. Gielnik
| biorxiv.org
Abstract Intrinsically disordered proteins such as amyloid-β (Aβ), prion protein (PRP) and α-synuclein bind copper-ions through histidine-rich motifs. Several of these copper-binding motifs catalyze formation of reactive oxygen species (ROS), which is believed to be involved in these proteins' role in neurodegenerative disorders. The catalytic mechanism rely on binding in an "in-between state", which is energetically available to both Cu(I) and Cu(II) and thus allow redox cycling.
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