Secondary Structure of Subgenomic RNA M of SARS-CoV-2.

Secondary Structure of Subgenomic RNA M of SARS-CoV-2.
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DOI:
10.3390/v14020322
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发表时间:
2022-02-04
期刊:
Viruses
影响因子:
--
通讯作者:
Kierzek E
Kierzek E
中科院分区:
其他
文献类型:
--
作者:
Soszynska-Jozwiak M;Ruszkowska A;Kierzek R;O'Leary CA;Moss WN;Kierzek E

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SARS-CoV-2属于冠状病毒科。与其他冠状病毒一样,SARS-CoV-2有包膜,具有约30 kb的正义单链RNA基因组。基因组RNA用作复制和转录的模板。在这些过程中,产生了正义基因组RNA(gRNA)和亚基因组RNA(sgRNA)。几项研究提出了基因组RNA二级结构在SARS-CoV-2复制中的重要性。然而,迄今为止,sgRNA的结构在很大程度上仍未得到解决。在本研究中,我们探索了SARS-CoV-2的sgRNA M体外模型。该模型分子包括M基因的5′UTR和编码序列。这是第一个通过实验获得的sgRNA M的二级结构模型,它呈现了可能在sgRNA M功能中很重要的特征。sgRNA M结构的知识为更好地理解病毒生物学提供了见解,并可用于设计新的治疗方法。
SARS-CoV-2 belongs to the Coronavirinae family. Like other coronaviruses, SARS-CoV-2 is enveloped and possesses a positive-sense, single-stranded RNA genome of ~30 kb. Genomic RNA is used as the template for replication and transcription. During these processes, positive-sense genomic RNA (gRNA) and subgenomic RNAs (sgRNAs) are created. Several studies presented the importance of the genomic RNA secondary structure in SARS-CoV-2 replication. However, the structure of sgRNAs has remained largely unsolved so far. In this study, we probed the sgRNA M model of SARS-CoV-2 in vitro. The presented model molecule includes 5′UTR and a coding sequence of gene M. This is the first experimentally informed secondary structure model of sgRNA M, which presents features likely to be important in sgRNA M function. The knowledge of sgRNA M structure provides insights to better understand virus biology and could be used for designing new therapeutics.
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