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Amino acid sequence of the V2 loop of the SF162 envelope. The amino acid sequence of the second hypervariable region of the SF162 envelope from isoleucine 152 to isoleucine 199 is shown. Underlined are the positions of potential N-linked glycosylation sites. The numbers indicate the location of asparagines (N) at positions 154, 186, and 195 of the SF162 envelope.
