MFS_5 is a family of sugar-transporters from both prokaryotes and eukaryotes.

1: Algae and humans share a molybdate transporter. Tejada-Jimenez M, Galvan A, Fernandez E; Proc Natl Acad Sci U S A. 2011;108:6420-6425. PMID:21464289

2: The monosaccharide transporter gene family in land plants is ancient and shows differential subfamily expression and expansion across lineages. Johnson DA, Hill JP, Thomas MA; BMC Evol Biol. 2006;6-64. PMID:16923188