期刊
NATURE REVIEWS MOLECULAR CELL BIOLOGY
卷 20, 期 10, 页码 608-624出版社
NATURE PORTFOLIO
DOI: 10.1038/s41580-019-0168-5
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N-6-methyladenosine (m(6)A) is the most abundant mRNA internal modification. The recent mapping of m(6)A has provided insights into which and how mRNAs are modified, how m(6)A affects gene expression and how it is linked to cellular differentiation, cancer progression and other biological processes. RNA methylation to form N-6-methyladenosine (m(6)A) in mRNA accounts for the most abundant mRNA internal modification and has emerged as a widespread regulatory mechanism that controls gene expression in diverse physiological processes. Transcriptome-wide m(6)A mapping has revealed the distribution and pattern of m(6)A in cellular RNAs, referred to as the epitranscriptome. These maps have revealed the specific mRNAs that are regulated by m(6)A, providing mechanistic links connecting m(6)A to cellular differentiation, cancer progression and other processes. The effects of m(6)A on mRNA are mediated by an expanding list of m(6)A readers and m(6)A writer-complex components, as well as potential erasers that currently have unclear relevance to m(6)A prevalence in the transcriptome. Here we review new and emerging methods to characterize and quantify the epitranscriptome, and we discuss new concepts - in some cases, controversies - regarding our understanding of the mechanisms and functions of m(6)A readers, writers and erasers.
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