Fig. 1

Sugar nucleotide biosynthesis pathways in Plasmodium falciparum. Activated sugars, used for glycoconjugate biosynthesis, are underlined. Carbohydrates, taken up from the medium or salvaged, are circled. Sugar nucleotide donor fates are indicated and they are in italics when glycosylations have not been proved to be present in the parasite. The numbers refer to the enzymatic activities summarized in Table 1. Discontinuous arrows depict enzymatic activities that could not be identified in P. falciparum genome