Comparison of Arp2 from Dictyostelium and Entamoeba. (A) Sequence alignment of Arp2 from D. discoideum (Dd) and E. histolytica (Eh). Dark shading represents identical residues and residues present in any one specie. Light shading represents conserved residues. Dashes are incorporated to optimise alignment. (B) Comparison of Dictyostelium Arp2 with the human, Saccharomyces and Entamoeba homologues. Numbers in () show percent identity (the proportion of identical amino acids over the full length of the aligned proteins expressed as a percentage). Numbers in  show percent similarity (the proportion of both identical and conserved amino acids over the full length of the aligned proteins expressed as a percentage). (C) Key features of Arp2 from Dictyostelium and Entamoeba based on respective GenBank entries.