The Plasmodium-specific apicoplast protein important for liver merozoite formation (PALM). A. Primary structure of Plasmodium PALM proteins. Shown are the overall sequence structures and amino acid sequence identities of PALM orthologues in P. yoelii (PY01863), P. falciparum (PFF0110w) and P. vivax (PVX_113280), compared with P. berghei PALM (PBANKA_010110). Signal peptide (red), apicoplast-targeting sequence (green) as predicted with PlasmoAP (Foth et al., 2003), and the conserved domain (grey) with two signature cysteine residues (yellow) are shown. B. Sequence alignment of Plasmodium PALM proteins. Shown is the conserved domain (A) with the two signature cysteine residues (highlighted yellow). P. berghei PALM, PBANKA_010110; P. yoelii PALM, PY01863; P. chabaudi PALM, PCHAS_010180; P. falciparum PALM, PFF0110w; P. vivax PALM, PVX_113280; P. knowlesi PALM, PKH_114760.