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10.1021/acs.analchem.0c04634

http://scihub22266oqcxt.onion/10.1021/acs.analchem.0c04634
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34284575!ä!34284575

suck abstract from ncbi


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pmid34284575      Anal+Chem 2021 ; 93 (30): 10444-10452
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  • Comprehensive O-Glycosylation Analysis of the SARS-CoV-2 Spike Protein with Biomimetic Trp-Arg Materials #MMPMID34284575
  • Dong X; Chen C; Yan J; Zhang X; Li X; Liang X
  • Anal Chem 2021[Aug]; 93 (30): 10444-10452 PMID34284575show ga
  • The COVID-19 pandemic caused by severe acute respiratory syndrome coronavirus-2 (SARS-CoV-2) is a serious public health threat. Most vaccines against SARS-CoV-2 target the highly glycosylated spike protein (S). A good knowledge of the glycosylation profile of this protein is key to successful vaccine development. Unlike the 22 confirmed N-glycosylation sites on SARS-CoV-2 S, only a few O-glycosylation sites on this protein have been reported. This difference is mainly ascribed to the extremely low stoichiometry of O-glycosylation. Herein, we designed the biomimetic materials, Trp-Arg (WR) monomer-grafted silica microspheres (designated as WR-SiO(2)), and these biomimetic materials can enrich N- and O-linked glycopeptides with high selectivity. And WR-SiO(2) can resist the nonglycopeptides' interference with the 100 molar fold of BSA during O-linked glycopeptide enrichment. We utilized WR-SiO(2) to comprehensively analyze the O-glycosylation profile of recombinant SARS-CoV-2 S. Twenty-seven O-glycosylation sites including 18 unambiguous sites are identified on SARS-CoV-2 S. Our study demonstrates that the biomimetic polymer can offer specific selectivity for O-linked glycopeptides and pave the way for O-glycosylation research in biological fields. The O-glycosylation profile of SARS-CoV-2 S might supplement the comprehensive glycosylation in addition to N-glycosylation of SARS-CoV-2 S.
  • |*Biomimetic Materials[MESH]
  • |*COVID-19[MESH]
  • |Biomimetics[MESH]
  • |COVID-19 Vaccines[MESH]
  • |Glycosylation[MESH]
  • |Humans[MESH]
  • |Pandemics[MESH]
  • |SARS-CoV-2[MESH]
  • |Silicon Dioxide[MESH]


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