Alignment of deduced PPCK amino acid sequences. FtPPCK, Flaveria trinervia (AB065100); LePPCK1 and LePPCK2, tomato (this work); KfPPCK, Kalanchoë fedtschenkoi (AF162661); StPPCK1, potato (this work); and McPPCK, ice plant (Mesembryanthemum crystallinum, AF158091). Dots and vertical lines, Identities and similarities respectively.