FSY1, a novel gene encoding a specific fructose/H+ symporter in the type strain of Saccharomyces carlsbergensis

A novel gene, FSY1, encoding a permease involved in active fructose uptake by a proton symport mechanism in the type strain of Saccharomyces carlsbergensis has been isolated, Fsy1p is only distantly related to the Hxt proteins that mediate facilitated diffusion of glucose and fructose in Saccharomyces cerevisiae and related species.