N(6)-Hydroperoxymethyladenosine: a new intermediate of chemical oxidation of N(6)-methyladenosine mediated by bicarbonate-activated hydrogen peroxide.

N(6)-Hydroperoxymethyladenosine: a new intermediate of chemical oxidation of N(6)-methyladenosine mediated by bicarbonate-activated hydrogen peroxide.
复制标题

N-6-羟过氧甲基腺苷:碳酸氢盐激活的过氧化氢介导的 N-6-甲基腺苷化学氧化的新中间体

DOI:
10.1039/c5sc00484e
复制
发表时间:
2015-05-01
期刊:
影响因子:
8.4
通讯作者:
Zhou X
Zhou X
中科院分区:
化学1区
文献类型:
--
作者:
Wu J;Xiao H;Wang T;Hong T;Fu B;Bai D;He Z;Peng S;Xing X;Hu J;Guo P;Zhou X

文献摘要

参考文献

相似文献

在H_2O_2/碳酸氢盐体系中,通过N6-氢过氧甲基腺苷(oxm 6A)中间体化学氧化N6-甲基腺苷,发现了一条新的途径。 N-6-甲基腺苷(m6 A)是真核生物RNA中相对丰富的修饰。由于m6 A具有与腺苷相似的性质和低反应性,因此有限的研究集中在这种核苷上。在这项研究中,我们揭示了一个重要的中间体,在氧化m6 A通过碳酸氢盐活化的过氧化物系统。在氧化过程中,我们发现了一种新的机制,其中N6-羟甲基腺苷(hm 6A),N6-甲酰腺苷(f6 A)和N6-氢过氧甲基腺苷(oxm 6A)是中间产物,腺苷是最终产物。本研究采用高效液相色谱法分离oxm 6A,并通过质谱、核磁共振和联苯-1-芘基膦(DPPP)荧光检测进行表征。这项研究提供了一种新的修饰核苷,并证明了在核碱基水平和RNA链中活性氧对m6 A的氧化去甲基化作用。
A new route is found in the chemical oxidation of N6-methyladenosine using a H2O2/bicarbonate system through the N6-hydroperoxymethyladenosine (oxm6A) intermediate. N 6-Methyladenosine (m6A) represents a relatively abundant modification in eukaryotic RNA. Because m6A has similar properties to adenosine and a low reactivity, limited research has been focused on this nucleoside. In this study, we revealed an important intermediate in the oxidation of m6A through the bicarbonate-activated peroxide system. Over the course of oxidation, we found a new mechanism in which N6-hydroxymethyladenosine (hm6A), N6-formyladenosine (f6A) and N6-hydroperoxymethyladenosine (oxm6A) were intermediate products, and adenosine was the final product. In this study, oxm6A was isolated using HPLC and characterized by mass spectrometry, NMR and diphenyl-1-pyrenylphosphine (DPPP) fluorescence detection. This study provides a new modified nucleoside and demonstrates oxidative demethylation of m6A by reactive oxygen species at the nucleobase level and in RNA strands.
DOI: 10.1093/nar/gku334
发表时间: 2014-06
影响因子: 14.9
作者:
Madugundu GS;Cadet J;Wagner JR
通讯作者: Wagner JR
DOI: 10.1042/bj0700642
发表时间: 1958-01-01
影响因子: 4.1
作者:
LITTLEFIELD, JW;DUNN, DB
通讯作者: DUNN, DB
DOI: 10.1016/j.cell.2012.05.003
发表时间: 2012-06-22
期刊: Cell
影响因子: 64.5
作者:
Meyer KD;Saletore Y;Zumbo P;Elemento O;Mason CE;Jaffrey SR
通讯作者: Jaffrey SR
DOI: 10.1038/nature11112
发表时间: 2012-05-10
期刊: NATURE
影响因子: 64.8
作者:
Dominissini, Dan;Moshitch-Moshkovitz, Sharon;Rechavi, Gideon
通讯作者: Rechavi, Gideon