Identification and characterization of GONST1, a Golgi-localized GDP-mannose transporter in arabidopsis

T. C. Baldwin, M. G. Handford, M. I. Yuseff, A. Orellana, P. Dupree

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136 Citas (Scopus)

Resumen

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::β-glucuronidase studies suggested that this gene is expressed ubiquitously. The identification of a Golgi-localized nucleotide sugar transporter from plants will allow the study of the importance of this class of proteins in the synthesis of plant cell surface components such as cell wall polysaccharides.

Idioma originalInglés
Páginas (desde-hasta)2283-2295
Número de páginas13
PublicaciónPlant Cell
Volumen13
N.º10
DOI
EstadoPublicada - 2001

Áreas temáticas de ASJC Scopus

  • Botánica
  • Biología celular

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