Figure 1
Schematic view of the apicomplexan pellicle with actin and the anchoring proteins. (a) The roles of the glideosome-associated proteins (GAP40, GAP45 and GAP50) and MyoA are inferred from data on T. gondii, while data also exist for Plasmodium spp. for the other components. Where two names are provided, the first one is always the Plasmodium protein and the second that from T. gondii. The small arrow indicates the direction of the MyoA power stroke, while the large arrow indicates the direction of parasite movement. The directionality of actin polymerization is indicated by + and − signs. (b) Structures of the Plasmodium GAP50 soluble domain (PDB entry 3tgh
; Bosch et al., 2012), Plasmodium MTIP in complex with a peptide from MyoA (PDB entry 4aom
; Douse et al., 2012) and Plasmodium aldolase (PDB entry 2pc4
; Bosch, Buscaglia et al., 2007). |