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10.1038/s41467-021-27431-0

http://scihub22266oqcxt.onion/10.1038/s41467-021-27431-0
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suck abstract from ncbi


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pmid34893599      Nat+Commun 2021 ; 12 (1): 7193
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  • The short isoform of the host antiviral protein ZAP acts as an inhibitor of SARS-CoV-2 programmed ribosomal frameshifting #MMPMID34893599
  • Zimmer MM; Kibe A; Rand U; Pekarek L; Ye L; Buck S; Smyth RP; Cicin-Sain L; Caliskan N
  • Nat Commun 2021[Dec]; 12 (1): 7193 PMID34893599show ga
  • Programmed ribosomal frameshifting (PRF) is a fundamental gene expression event in many viruses, including SARS-CoV-2. It allows production of essential viral, structural and replicative enzymes that are encoded in an alternative reading frame. Despite the importance of PRF for the viral life cycle, it is still largely unknown how and to what extent cellular factors alter mechanical properties of frameshift elements and thereby impact virulence. This prompted us to comprehensively dissect the interplay between the SARS-CoV-2 frameshift element and the host proteome. We reveal that the short isoform of the zinc-finger antiviral protein (ZAP-S) is a direct regulator of PRF in SARS-CoV-2 infected cells. ZAP-S overexpression strongly impairs frameshifting and inhibits viral replication. Using in vitro ensemble and single-molecule techniques, we further demonstrate that ZAP-S directly interacts with the SARS-CoV-2 RNA and interferes with the folding of the frameshift RNA element. Together, these data identify ZAP-S as a host-encoded inhibitor of SARS-CoV-2 frameshifting and expand our understanding of RNA-based gene regulation.
  • |*Frameshifting, Ribosomal[MESH]
  • |COVID-19[MESH]
  • |HEK293 Cells[MESH]
  • |Host-Pathogen Interactions[MESH]
  • |Humans[MESH]
  • |Nucleic Acid Conformation[MESH]
  • |Protein Isoforms[MESH]
  • |Proteome[MESH]
  • |RNA, Viral/genetics[MESH]
  • |RNA-Binding Proteins/*metabolism[MESH]
  • |Repressor Proteins/*metabolism[MESH]
  • |SARS-CoV-2/*genetics/physiology[MESH]


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