... sucrose uptake[22]. These observations further support the idea thatS64/SBP functions in the sucrose translocation pathwayby regulating the expression or activity of alternativecarbohydrate uptake ... nonsatur-able sucrose uptake in yeast. Plant Cell 8, 271–280.16. Overvoorde, P.J., Chao, W.S. & Grimes, H.D. (1997) A plasmamembrane sucrose-binding protein that mediates sucrose uptakeshares ... reverses the mutant yeast phenotype and SBP-mediated specific sucrose uptake in yeast displays linear,nonsaturable kinetics up to 30 mMexternal sucrose, beingrelatively insensitive to pH gradient...