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. 2021 Dec 30;84(4):579–613. doi: 10.1016/j.jinf.2021.12.038

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© 2021 The British Infection Association. Published by Elsevier Ltd. All rights reserved.

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Fig 2 — Sequence alignment of spike protein from three SARS-CoV-2 strains including Wuhan-Hu-1 (GenBank accession no.YP_009724390), delta variant (GenBank accession no. QYM88683), and omicron variant (GenBank accession no. UFS23237). The important residues in NTD of S interacting with AXL are marked with green stars.