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10.3390/v13071229

http://scihub22266oqcxt.onion/10.3390/v13071229
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34202098!8310232!34202098
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suck abstract from ncbi


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pmid34202098      Viruses 2021 ; 13 (7): ä
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  • How Do Enveloped Viruses Exploit the Secretory Proprotein Convertases to Regulate Infectivity and Spread? #MMPMID34202098
  • Seidah NG; Pasquato A; Andreo U
  • Viruses 2021[Jun]; 13 (7): ä PMID34202098show ga
  • Inhibition of the binding of enveloped viruses surface glycoproteins to host cell receptor(s) is a major target of vaccines and constitutes an efficient strategy to block viral entry and infection of various host cells and tissues. Cellular entry usually requires the fusion of the viral envelope with host plasma membranes. Such entry mechanism is often preceded by "priming" and/or "activation" steps requiring limited proteolysis of the viral surface glycoprotein to expose a fusogenic domain for efficient membrane juxtapositions. The 9-membered family of Proprotein Convertases related to Subtilisin/Kexin (PCSK) serine proteases (PC1, PC2, Furin, PC4, PC5, PACE4, PC7, SKI-1/S1P, and PCSK9) participate in post-translational cleavages and/or regulation of multiple secretory proteins. The type-I membrane-bound Furin and SKI-1/S1P are the major convertases responsible for the processing of surface glycoproteins of enveloped viruses. Stefan Kunz has considerably contributed to define the role of SKI-1/S1P in the activation of arenaviruses causing hemorrhagic fever. Furin was recently implicated in the activation of the spike S-protein of SARS-CoV-2 and Furin-inhibitors are being tested as antivirals in COVID-19. Other members of the PCSK-family are also implicated in some viral infections, such as PCSK9 in Dengue. Herein, we summarize the various functions of the PCSKs and present arguments whereby their inhibition could represent a powerful arsenal to limit viral infections causing the present and future pandemics.
  • |*Gene Expression Regulation, Viral[MESH]
  • |*Virus Internalization[MESH]
  • |Biological Transport[MESH]
  • |Furin/metabolism[MESH]
  • |Humans[MESH]
  • |Proprotein Convertase 9/metabolism[MESH]
  • |Proprotein Convertases/genetics/*metabolism[MESH]
  • |Proteolysis[MESH]
  • |SARS-CoV-2/enzymology/metabolism[MESH]
  • |Serine Endopeptidases/metabolism[MESH]
  • |Spike Glycoprotein, Coronavirus/metabolism[MESH]
  • |Viral Envelope/metabolism[MESH]
  • |Virus Diseases/*virology[MESH]


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