Distance tree of DBLαCIDR1 domains of 3D7 PfEMP1 and pseudogene PFE1640w generated using the p-distance/NJ method. The clusters A through E were supported by both bootstrapping and maximum parsimony tree (not shown). Numbers at the nodes represent bootstrap proportions (BP) on 1000 replicates. The scale bar represents the proportion of different amino acids compared. PlasmoDB accession numbers are shown. Genes with assigned cluster are collected in figure 7.