(C) Ribbon diagram of the 2.56-Å resolution structure of pentameric PfFNT viewed from the parasite's cytoplasm. The five protomers of pentameric PfFNT are colored yellow, cyan, orange, slate and purple. (D) Ribbon diagram of pentameric PfFNT viewed from the parasite's membrane plane. The five protomers of pentameric PfFNT are colored yellow, cyan, orange, slate and purple. (E) Ribbon diagram of pentameric PfFNT viewed from the extracellular side of the parasite. The five protomers of pentameric PfFNT are colored yellow, cyan, orange, slate and purple. (F) Structure of a protomer of PfFNT. This ribbon diagram is colored using a rainbow gradient from the N-terminus (blue) to the C-terminus (red). 