id author title date pages extension mime words sentences flesch summary cache txt cord-335075-6wo2o5pp Bangaru, Sandhya Structural analysis of full-length SARS-CoV-2 spike protein from an advanced vaccine candidate 2020-08-06 .txt text/plain 4715 240 51 Here, we performed cryo-EM and site-specific glycan analysis of one of the leading subunit vaccine candidates from Novavax based on a full-length spike protein formulated in polysorbate 80 (PS 80) detergent. Site-specific glycosylation of the SARS-CoV-2 prefusion spike protein produced in SF9 insect cells was analyzed using our recently described mass spectrometry proteomics-based method, involving treatment with proteases followed by sequential treatment with the endoglycosidases (Endo H and PNGase F) to introduce mass signatures in peptides with N-linked sequons (Asn-X-Thr/Ser) to assess the extent of glycosylation and the degree of glycan processing from high mannose/hybrid type to complex type (24) . In this study, we performed structural analysis of the Novavax SARS-CoV We also observed two non-spike densities within the spike trimer that corresponded with linoleic acid and polysorbate 80 detergent. ./cache/cord-335075-6wo2o5pp.txt ./txt/cord-335075-6wo2o5pp.txt