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Site-specific characterization of SARS-CoV-2 spike glycoprotein receptor-binding domain.


ABSTRACT: The novel coronavirus SARS-CoV-2, the infective agent causing COVID-19, is having a global impact both in terms of human disease as well as socially and economically. Its heavily glycosylated spike glycoprotein is fundamental for the infection process, via its receptor-binding domains interaction with the glycoprotein angiotensin-converting enzyme 2 on human cell surfaces. We therefore utilized an integrated glycomic and glycoproteomic analytical strategy to characterize both N- and O- glycan site-specific glycosylation within the receptor-binding domain. We demonstrate the presence of complex-type N-glycans with unusual fucosylated LacdiNAc at both sites N331 and N343 and a single site of O-glycosylation on T323.

SUBMITTER: Antonopoulos A 

PROVIDER: S-EPMC7499654 | biostudies-literature |

REPOSITORIES: biostudies-literature

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