Figure 2

Scheme of the location of antigenic sites in surface proteins of FMDV serotype O (A), phylogenetic tree generated from the VP1 nucleotide sequences of FMDV O/Fujian/CHA/5/99 and 15 reference strains (B) and the amino acid sequence alignments around G-H loop (positions 131 to 161) of the VP1 protein of those isolates (C). Mutant residues position of FMDV O/Fujian/CHA/5/99 strain is indicated (in A). The scale bar indicates the genetic distance (in B). The different amino acids are indicated in the box (in C).