Critical assessment of DNA adenine methylation in eukaryotes using quantitative deconvolution.
Critical assessment of DNA adenine methylation in eukaryotes using quantitative deconvolution.
复制标题
DOI:
10.1126/science.abe7489
复制
发表时间:
2022-02-04
期刊:
影响因子:
--
通讯作者:
中科院分区:
文献类型:
--
作者:
The discovery of N6-methyldeoxyadenine (6mA) across eukaryotes created excitement for additional epigenetic mechanisms. However, some studies have highlighted confounding factors, challenging the prevalence of 6mA in eukaryotes. We developed a metagenomic method to quantitatively deconvolve 6mA events from a gDNA sample into species of interest, genomic regions, and sources of contamination. Applying this method, we observed high-resolution 6mA deposition in two protozoa. We found that commensal/soil bacteria explained the vast majority of 6mA in insect and plant samples. We found no evidence of high 6mA in Drosophila, Arabidopsis, or human. Plasmids used for genetic manipulation even from Dam methyltransferase mutant Escherichia coli, could carry abundant 6mA, confounding the evaluation of candidate 6mA methyltransferases and demethylases. This work advocates for a re-assessment of 6mA in eukaryotes. To help clarify DNA adenine methylation in eukaryotes, we developed a method and report findings with broad implications.
登录
查看更多内容
影响因子:
16.6
作者:
Chen, Weizhong;Liu, Yi;Han, Jing-Dong Jackie
通讯作者:
Han, Jing-Dong Jackie
影响因子:
64.5
作者:
Fu Y;Luo GZ;Chen K;Deng X;Yu M;Han D;Hao Z;Liu J;Lu X;Dore LC;Weng X;Ji Q;Mets L;He C
通讯作者:
He C
影响因子:
48
作者:
Flusberg, Benjamin A.;Webster, Dale R.;Lee, Jessica H.;Travers, Kevin J.;Olivares, Eric C.;Clark, Tyson A.;Korlach, Jonas;Turner, Stephen W.
通讯作者:
Turner, Stephen W.
影响因子:
13.6
作者:
Douvlataniotis, Karolos;Bensberg, Maike;Nestor, Coim E.
通讯作者:
Nestor, Coim E.
DOI:
10.1073/pnas.1912075117
发表时间:
2020-06-09
影响因子:
11.1
作者:
Bian, Chao;Guo, Xiaoyu;Dong, Juan
通讯作者:
Dong, Juan