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10.1016/j.virol.2021.02.010

http://scihub22266oqcxt.onion/10.1016/j.virol.2021.02.010
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33711560!7934794!33711560
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suck abstract from ncbi


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pmid33711560      Virology 2021 ; 558 (ä): 22-27
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  • SARS_CoV2 RBD gene transcription cannot be driven by CMV promoter #MMPMID33711560
  • Xie L; Yi K; Li Y
  • Virology 2021[Jun]; 558 (ä): 22-27 PMID33711560show ga
  • Cytomegalovirus (CMV) promoter drives various gene expression and yields sufficient protein for further functional investigation. Receptor binding domain (RBD) on spike protein of the SARS_CoV2 is the most critical portal for virus infection. Thus native conformational RBD protein may facilitate biochemical identification of RBD and provide valuable support of drug and vaccine design for curing COVID-19. We attempted to express RBD under CMV promoter in vitro, but failed. RBD-specific mRNA cannot be detected in cell transfected with recombinant plasmids, in which CMV promoter governs the RBD transcription. Additionally, the pCMV-Tag2B-SARS_CoV2_RBD trans-inactivates CMV promoter transcription activity. Alternatively, we identified that both Chicken beta-actin promoter and Vaccinia virus-specific medium/late (M/L) promoter (pSYN) can highly precede SARS_CoV2 RBD expression. Our findings provided evidence that SARS_CoV2 RBD gene can be driven by Chicken beta-actin promoter or Vaccinia virus-specific medium/late promoter instead of CMV promoter, thus providing valuable information for RBD feature exploration.
  • |*Promoter Regions, Genetic[MESH]
  • |Actins/genetics[MESH]
  • |Animals[MESH]
  • |CHO Cells[MESH]
  • |COVID-19/*virology[MESH]
  • |Chickens[MESH]
  • |Chlorocebus aethiops[MESH]
  • |Cloning, Molecular[MESH]
  • |Cricetulus[MESH]
  • |Cytomegalovirus/*genetics[MESH]
  • |HEK293 Cells[MESH]
  • |Humans[MESH]
  • |Protein Domains[MESH]
  • |SARS-CoV-2/*genetics[MESH]
  • |Spike Glycoprotein, Coronavirus/*genetics[MESH]
  • |Transcription, Genetic[MESH]
  • |Vaccinia/genetics[MESH]


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