Author: Liu, Jun’e; Xu, Yan-Peng; Li, Kai; Ye, Qing; Zhou, Hang-Yu; Sun, Hanxiao; Li, Xiaoyu; Yu, Liu; Deng, Yong-Qiang; Li, Rui-Ting; Cheng, Meng-Li; He, Bo; Zhou, Jia; Li, Xiao-Feng; Wu, Aiping; Yi, Chengqi; Qin, Cheng-Feng
Title: The m(6)A methylome of SARS-CoV-2 in host cells Cord-id: fmphikyq Document date: 2021_1_28
ID: fmphikyq
Snippet: The newly identified Severe Acute Respiratory Syndrome Coronavirus 2 (SARS-CoV-2) has resulted in a global health emergency because of its rapid spread and high mortality. The molecular mechanism of interaction between host and viral genomic RNA is yet unclear. We demonstrate herein that SARS-CoV-2 genomic RNA, as well as the negative-sense RNA, is dynamically N(6)-methyladenosine (m(6)A)-modified in human and monkey cells. Combined RIP-seq and miCLIP analyses identified a total of 8 m(6)A sites
Document: The newly identified Severe Acute Respiratory Syndrome Coronavirus 2 (SARS-CoV-2) has resulted in a global health emergency because of its rapid spread and high mortality. The molecular mechanism of interaction between host and viral genomic RNA is yet unclear. We demonstrate herein that SARS-CoV-2 genomic RNA, as well as the negative-sense RNA, is dynamically N(6)-methyladenosine (m(6)A)-modified in human and monkey cells. Combined RIP-seq and miCLIP analyses identified a total of 8 m(6)A sites at single-base resolution in the genome. Especially, epidemic strains with mutations at these identified m(6)A sites have emerged worldwide, and formed a unique cluster in the US as indicated by phylogenetic analysis. Further functional experiments showed that m(6)A methylation negatively regulates SARS-CoV-2 infection. SARS-CoV-2 infection also triggered a global increase in host m(6)A methylome, exhibiting altered localization and motifs of m(6)A methylation in mRNAs. Altogether, our results identify m(6)A as a dynamic epitranscriptomic mark mediating the virus–host interaction.
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