Alignment of BLV <i>env</i> amino acid sequences between 25 reference strains from GenBank and four Caribbean strains (KX674367, KX674369, KX674371 and KX674373).

<p>Numbers above the sequences are nucleotide number and amino acid residue number indicated by the <i>env</i> gene of K02120. The countries of the strains are marked with abbreviations in parentheses to the right of the GenBank accession numbers. Dots indicate nucleotides or amino acids identical to the reference sequence. Labeled lines and ▼ indicate the position of identified glycoproteins, epitopes, the transmembrane hydrophobic region (TMHR) and the cytoplasmic domain of the transmembrane protein (CTM).