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Arrangement of motifs present within open reading frame (ORF) III polyprotein. Bold continuous lines indicate the motifs and broken lines indicate the gaps. The numbers above the lines indicate the approximate lengths of nonhomologous amino acid residues, and those below the lines indicate the approximate start and end positions. AP, aspartic protease; MP, movement protein; RNaseH, ribonucleaseH; RT, reverse transcriptase.
