Use of a metallopeptide-based mimic provides evidence for a proton-coupled electron-transfer mechanism for superoxide reduction by nickel-containing superoxide dismutase.
Use of a metallopeptide-based mimic provides evidence for a proton-coupled electron-transfer mechanism for superoxide reduction by nickel-containing superoxide dismutase.
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DOI:
10.1002/anie.201209746
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发表时间:
2013-02-25
影响因子:
16.6
通讯作者:
Shearer, Jason
中科院分区:
文献类型:
--
作者:
Shearer, Jason
Superoxide (O2C À) is a highly toxic reactive oxygen species that can induce cellular death at subnanomolar concentrations.[1] Because O2C À production is an unavoidable part of aerobic life, aerobic organisms have evolved superoxide detoxification systems, the most prevalent of which are the superoxide dismutases (SODs).[1, 2] All known SODs have redox-active metal cofactors and detoxify superoxide through a ping-pong-type mechanism, shown in Equations 1a, b:
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