• Identification and characterization of GONST1, a golgi-localized GDP-mannose transporter in Arabidopsis.

      Baldwin, Timothy C.; Handford, Michael G.; Yuseff, Maria-Isabel; Orellana, Ariel; Dupree, Paul (American Society of Plant Biologists, 2001)
      Transport of nucleotide sugars across the Golgi apparatus membrane is required for the luminal synthesis of a variety of plant cell surface components. We identified an Arabidopsis gene encoding a nucleotide sugar transporter (designated GONST1) that we have shown by transient gene expression to be localized to the Golgi. GONST1 complemented a GDP-mannose transport-defective yeast mutant (vrg4-2), and Golgi-rich vesicles from the complemented strain displayed increased GDP-mannose transport activity. GONST1 promoter