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Localization of the Y39H mutation. (A) Amino acid sequences of the first 50 amino acid residues in the M1-CovS-WT and M1-CovS-Y39H strains. The 39th amino acid residue is in boldface type. (B) Localization of the mutation in a schematic representation of CovS. Black arrow, 39th residue. (Modified from reference 54.)
