《BioRxiv,3月3日,Evidence for RNA editing in the transcriptome of 2019 Novel Coronavirus》

  • 来源专题:COVID-19科研动态监测
  • 编译者: zhangmin
  • 发布时间:2020-03-04
  • Evidence for RNA editing in the transcriptome of 2019 Novel Coronavirus

    Salvatore Di Giorgio, Filippo Martignano, Maria Gabriella Torcia, Giorgio Mattiuz, Silvestro G Conticello

    doi: https://doi.org/10.1101/2020.03.02.973255

    Abstract

    The 2019-nCoV outbreak has become a global health risk. Editing by host deaminases is an innate restriction process to counter viruses, and it is not yet known whether it operates against coronaviruses. Here we analyze RNA sequences from bronchoalveolar lavage fluids derived from two Wuhan patients. We identify nucleotide changes that may be signatures of RNA editing: Adenosine-to-Inosine changes from ADAR deaminases and Cytosine-to-Uracil changes from APOBEC ones. A mutational analysis of genomes from different strains of human-hosted Coronaviridae reveals patterns similar to the RNA editing pattern observed in the 2019-nCoV transcriptomes. Our results suggest that both APOBECs and ADARs are involved in Coronavirus genome editing, a process that may shape the fate of both virus and patient.

    *注,本文为预印本论文手稿,是未经同行评审的初步报告,其观点仅供科研同行交流,并不是结论性内容,请使用者谨慎使用.

  • 原文来源:https://www.biorxiv.org/content/10.1101/2020.03.02.973255v1
相关报告
  • 《BioRxiv,3月24日,Characterisation of the transcriptome and proteome of SARS-CoV-2 using direct RNA sequencing and tandem mass spectrometry reveals evidence for a cell passage induced in-frame deletion》

    • 来源专题:COVID-19科研动态监测
    • 编译者:zhangmin
    • 发布时间:2020-03-25
    • Characterisation of the transcriptome and proteome of SARS-CoV-2 using direct RNA sequencing and tandem mass spectrometry reveals evidence for a cell passage induced in-frame deletion in the spike glycoprotein that removes the furin-like cleavage site. Andrew D. Davidson, Maia Kavangh Williamson, Sebastian Lewis, Deborah Shoemark, Miles W Carroll, Kate Heesom, Maria Zambon, Joanna Ellis, Phillip A Lewis, Julian A Hiscox, David A Matthews doi: https://doi.org/10.1101/2020.03.22.002204 Abstract Direct RNA sequencing using an Oxford Nanopore MinION characterised the transcriptome of SARS-CoV-2 grown in Vero E6 cells. This cell line is being widely used to propagate the novel coronavirus. The viral transcriptome was analysed using a recently developed ORF-centric pipeline. This revealed the pattern of viral transcripts, (i.e. subgenomic mRNAs), generally fitted the predicted replication and transcription model for coronaviruses. A 24 nt in-frame deletion was detected in subgenomic mRNAs encoding the spike (S) glycoprotein. This feature was identified in over half of the mapped transcripts and was predicted to remove a proposed furin cleavage site from the S glycoprotein. *注,本文为预印本论文手稿,是未经同行评审的初步报告,其观点仅供科研同行交流,并不是结论性内容,请使用者谨慎使用.
  • 《3月3日_意大利科研团队文章发现2019年新型冠状病毒转录组RNA编辑的证据》

    • 来源专题:COVID-19科研动态监测
    • 编译者:zhangmin
    • 发布时间:2020-03-04
    • 1.时间:2020年3月3日 2.机构或团队:意大利癌症预防参考中心ISPRO中心研究实验室、意大利锡耶纳大学、佛罗伦萨大学、意大利临床生理学研究所、意大利国家研究委员会 3.事件概要: 3月3日,bioRxiv预印本发表了来自意大利癌症预防参考中心ISPRO等团队的题为“Evidence for RNA editing in the transcriptome of 2019 Novel Coronavirus”的文章。 2019-nCoV疫情已成为全球健康风险。通过宿主脱氨酶进行编辑是对抗病毒的一个固有的限制性过程,目前还不清楚它是否对冠状病毒起作用。本文分析了来自武汉地区2例患者支气管肺泡灌洗液中获取的RNA序列。 文章发现,核苷酸的变化可能是RNA编辑的特征:腺嘌呤核苷到次皇嘌呤核苷(Adenosine-to-Inosine)的变化来自ADAR脱氨酶,胞嘧啶到尿嘧啶(Cytosine-to-Uracil)的变化来自APOBEC。对不同人类寄主的冠状病毒科菌株基因组的突变分析显示,与2019-nCoV转录体中观察到的RNA编辑模式相似。文章的结果表明,APOBECs和ADARs都参与了冠状病毒的基因组编辑,这一过程可能决定病毒和宿主的命运。 4.附件: 原文链接 https://www.biorxiv.org/content/10.1101/2020.03.02.973255v1