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Molecular characterization of recombinant XAG. Alignment of sequences from Omicron subvariants BA.1 and BA.2, which originated the recombination that generated the XAG recombinant showed four distinct markers (in red) of this recombinant at positions (A) 2,857 (C/T), (B) 5,585 (C/A), (C) 12,334 (A/G), and (D) 17,502 (C/T). The mutation at positions 2,857 and 17,502 generate synonymous mutations and the mutation at position 5,585 (L1774I) is exclusive to this recombinant.
