Iron Fenton oxidation of 2'-deoxyguanosine in physiological bicarbonate buffer yields products consistent with the reactive oxygen species carbonate radical anion not the hydroxyl radical.

Iron Fenton oxidation of 2'-deoxyguanosine in physiological bicarbonate buffer yields products consistent with the reactive oxygen species carbonate radical anion not the hydroxyl radical.
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DOI:
10.1039/d0cc04138f
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发表时间:
2020-08-25
期刊:
Chemical communications (Cambridge, England)
影响因子:
--
通讯作者:
Burrows CJ
Burrows CJ
中科院分区:
其他
文献类型:
--
作者:
Fleming AM;Burrows CJ

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铁Fenton氧化2′-脱氧鸟苷的产物分析发现,在碳酸氢盐缓冲液中反应生成8-氧-2′-脱氧鸟苷和螺酰亚胺二氰胺,与CO3•−一致。在磷酸盐缓冲液中反应可获得与HO•一致的高产率糖氧化产物。这些观察结果改变了对铁-芬顿反应产生的DNA氧化产物的看法。
Product analysis from the iron Fenton oxidation of 2′-deoxyguanosine found reactions in bicarbonate buffer yield 8-oxo-2′-deoxyguanosine and spiroiminodihyantoin consistent with CO3•−. Reactions in phosphate buffer furnished high yields of sugar oxidation products consistent with HO•. These observations change the view of DNA oxidation products from the iron-Fenton reaction.
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