Low catalytic activity of the Cu(<scp>ii</scp>)-binding motif (Xxx-Zzz-His; ATCUN) in reactive oxygen species production and inhibition by the Cu(<scp>i</scp>)-chelator BCS
作者:Alice Santoro、Gulshan Walke、Bertrand Vileno、Prasad P. Kulkarni、Laurent Raibaut、Peter Faller
DOI:10.1039/c8cc06040a
日期:——
The catalytic redox activity of Cu(II) bound to the motif NH2–Xxx-Zzz-His (ATCUN) with ascorbate and H2O2/O2 is very low and can be stopped via Cu(I)-chelation. This impacts its application as an artificial Cu–enzyme to degrade biomolecules via production of reactive oxygen species in a Cu(I)-chelator rich environment like the cytosol.
与基序NH 2 -Xxx-Zzz-His(ATCUN)结合的具有抗坏血酸和H 2 O 2 / O 2的Cu(II)的催化氧化还原活性非常低,可以通过Cu(I)螯合来终止。这会影响其作为人造Cu酶的应用,通过在富含Cu(I)螯合剂的环境(如胞质溶胶)中产生活性氧来降解生物分子。