{"target":"https://pubannotation.org/docs/sourcedb/PMC/sourceid/7199903","sourcedb":"PMC","sourceid":"7199903","source_url":"https://www.ncbi.nlm.nih.gov/pmc/7199903","text":"Although unoccupied glycosylation sites were detected on SARS-CoV-2 S, when quantified they were revealed to form a very minor component of the total peptide pool (table S2). In HIV-1 immunogen research, the holes generated by unoccupied glycan sites have been shown to be immunogenic and potentially give rise to distracting epitopes (26). The high occupancy of N-linked glycan sequons of SARS-CoV-2 S indicates that recombinant immunogens will not require further optimization to enhance site occupancy.","typesettings":[{"style":"italic","span":{"begin":336,"end":338}}]}