An NPF transporter exports a central monoterpene indole alkaloid intermediate from the vacuole

Richard Payne, Deyang Xu, Emilien Foureau, Marta Ines Soares Teto Carqueijeiro, Audrey Oudin, Thomas Dugé de Bernonville, Vlastimil Novák, Meike Burow, Carl Erik Olsen, D. Marc Jones, Evangelos C. Tatsis, Ali Pendleton, Barbara Ann Halkier, Fernando Geu-Flores, Vincent Courdavault, Hussam Hassan Nour-Eldin, Sarah E O'Connor

48 Citationer (Scopus)

Abstract

Plants sequester intermediates of metabolic pathways into different cellular compartments, but the mechanisms by which these molecules are transported remain poorly understood. Monoterpene indole alkaloids, a class of specialized metabolites that includes the anticancer agent vincristine, antimalarial quinine and neurotoxin strychnine, are synthesized in several different cellular locations. However, the transporters that control the movement of these biosynthetic intermediates within cellular compartments have not been discovered. Here we present the discovery of a tonoplast localized nitrate/peptide family (NPF) transporter from Catharanthus roseus, CrNPF2.9, that exports strictosidine, the central intermediate of this pathway, into the cytosol from the vacuole. This discovery highlights the role that intracellular localization plays in specialized metabolism, and sets the stage for understanding and controlling the central branch point of this pharmacologically important group of compounds.
OriginalsprogEngelsk
Artikelnummer16208
TidsskriftNature Plants
Vol/bind3
Antal sider9
ISSN2055-0278
DOI
StatusUdgivet - 13 jan. 2017

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