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10.1074/jbc.RA120.016175 http://scihub22266oqcxt.onion/10.1074/jbc.RA120.016175 33229438!7833635!33229438     free     free     free Warning: file_get_contents(https://eutils.ncbi.nlm.nih.gov/entrez/eutils/elink.fcgi?dbfrom=pubmed&id=33229438&cmd=llinks): Failed to open stream: HTTP request failed! 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The SARS-CoV-2 envelope and membrane proteins modulate maturation and retention of the spike protein, allowing assembly of virus-like particles |pdf=|usr=}}{{33229438}} gab.com Text The SARS-CoV-2 envelope and membrane proteins modulate maturation and retention of the spike protein, allowing assembly of virus-like particles JO: J Biol Chem http://www.kidney.de/pget.php?&tw=1&pmid=33229438 #FOAvip The severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2), a beta-coronavirus, is the causative agent of the COVID-19 pandemic. Like for other coronaviruses, its particles are composed of four structural proteins: spike (S), envelope (E), membrane (M), and nucleoprotein (N) proteins. The involvement of each of these proteins and their interactions are critical for assembly and production of beta-coronavirus particles. Here, we sought to characterize the interplay of SARS-CoV-2 structural proteins during the viral assembly process. By combining biochemical and imaging assays in infected versus transfected cells, we show that E and M regulate intracellular trafficking of S as well as its intracellular processing. Indeed, the imaging data reveal that S is relocalized at endoplasmic reticulum (ER)-Golgi intermediate compartment (ERGIC) or Golgi compartments upon coexpression of E or M, as observed in SARS-CoV-2-infected cells, which prevents syncytia formation. We show that a C-terminal retrieval motif in the cytoplasmic tail of S is required for its M-mediated retention in the ERGIC, whereas E induces S retention by modulating the cell secretory pathway. We also highlight that E and M induce a specific maturation of N-glycosylation of S, independently of the regulation of its localization, with a profile that is observed both in infected cells and in purified viral particles. Finally, we show that E, M, and N are required for optimal production of virus-like-particles. Altogether, these results highlight how E and M proteins may influence the properties of S proteins and promote the assembly of SARS-CoV-2 viral particles. Twit Text FOAVip The SARS-CoV-2 envelope and membrane proteins modulate maturation and retention of the spike protein, allowing assembly of virus-like particles ????J Biol Chem http://www.kidney.de/pget.php?&tw=1&pmid=33229438 #FOAvip Twit Text # Free Paper on # # # # # LINK http://www.kidney.de/pget.php?&tw=1&pmid=33229438 #FOAvip English Wikipedia <ref>{{Cite pmid|33229438}}</ref> The SARS-CoV-2 envelope and membrane proteins modulate maturation and retention of the spike protein, allowing assembly of virus-like particles #MMPMID33229438 Boson B; Legros V; Zhou B; Siret E; Mathieu C; Cosset FL; Lavillette D; Denolly S J Biol Chem 2021[Jan]; 296 (ä): 100111 PMID33229438show ga The severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2), a beta-coronavirus, is the causative agent of the COVID-19 pandemic. Like for other coronaviruses, its particles are composed of four structural proteins: spike (S), envelope (E), membrane (M), and nucleoprotein (N) proteins. The involvement of each of these proteins and their interactions are critical for assembly and production of beta-coronavirus particles. Here, we sought to characterize the interplay of SARS-CoV-2 structural proteins during the viral assembly process. By combining biochemical and imaging assays in infected versus transfected cells, we show that E and M regulate intracellular trafficking of S as well as its intracellular processing. Indeed, the imaging data reveal that S is relocalized at endoplasmic reticulum (ER)-Golgi intermediate compartment (ERGIC) or Golgi compartments upon coexpression of E or M, as observed in SARS-CoV-2-infected cells, which prevents syncytia formation. We show that a C-terminal retrieval motif in the cytoplasmic tail of S is required for its M-mediated retention in the ERGIC, whereas E induces S retention by modulating the cell secretory pathway. We also highlight that E and M induce a specific maturation of N-glycosylation of S, independently of the regulation of its localization, with a profile that is observed both in infected cells and in purified viral particles. Finally, we show that E, M, and N are required for optimal production of virus-like-particles. Altogether, these results highlight how E and M proteins may influence the properties of S proteins and promote the assembly of SARS-CoV-2 viral particles. |Animals[MESH] |Biomimetic Materials/chemistry/metabolism[MESH] |Cell Line, Tumor[MESH] |Chlorocebus aethiops[MESH] |Coronavirus Envelope Proteins/*genetics/metabolism[MESH] |Endoplasmic Reticulum/metabolism/ultrastructure/virology[MESH] |Gene Expression[MESH] |Golgi Apparatus/metabolism/ultrastructure/virology[MESH] |HEK293 Cells[MESH] |Hepatocytes/metabolism/ultrastructure/virology[MESH] |Host-Pathogen Interactions/genetics[MESH] |Humans[MESH] |Nucleocapsid Proteins/*genetics/metabolism[MESH] |Recombinant Proteins/genetics/metabolism[MESH] |SARS-CoV-2/genetics/*growth & development/metabolism[MESH] |Spike Glycoprotein, Coronavirus/*genetics/metabolism[MESH] |Vero Cells[MESH] |Viral Matrix Proteins/*genetics/metabolism[MESH] |Virion/genetics/*growth & development/metabolism[MESH] |Virus Assembly/*physiology[MESH] |Virus Internalization[MESH]The SARS-CoV-2 envelope and membrane proteins modulate maturation and (epmc).pdf DeepDyve Pubget Overpricing