Coordinated polar localization of auxin efflux carrier PIN1 by GNOM ARF GEF.
Détails
ID Serval
serval:BIB_0D4194B02FB8
Type
Article: article d'un périodique ou d'un magazine.
Collection
Publications
Institution
Titre
Coordinated polar localization of auxin efflux carrier PIN1 by GNOM ARF GEF.
Périodique
Science
ISSN
0036-8075 (Print)
ISSN-L
0036-8075
Statut éditorial
Publié
Date de publication
1999
Volume
286
Numéro
5438
Pages
316-318
Langue
anglais
Résumé
The plant hormone auxin is transported in a polar manner along the shoot-root axis, which requires efflux carriers such as PIN1. Asymmetric localization of PIN1 develops from a random distribution in Arabidopsis early embryogenesis. Coordinated polar localization of PIN1 is defective in gnom embryos. GNOM is a membrane-associated guanine-nucleotide exchange factor on ADP-ribosylation factor G protein (ARF GEF). Thus, GNOM-dependent vesicle trafficking may establish cell polarity, resulting in polar auxin transport.
Mots-clé
ADP-Ribosylation Factors/metabolism, Arabidopsis/cytology, Arabidopsis/embryology, Arabidopsis Proteins, Biological Transport, Brefeldin A/pharmacology, Cell Membrane/metabolism, Cell Polarity, Cytosol/metabolism, Guanine Nucleotide Exchange Factors/chemistry, Guanine Nucleotide Exchange Factors/genetics, Indoleacetic Acids/metabolism, Membrane Proteins/metabolism, Membrane Transport Proteins, Plant Roots/growth & development, Plant Roots/metabolism, Protein Conformation, Recombinant Proteins/metabolism, Seeds/cytology, Seeds/metabolism, Solubility, Subcellular Fractions/metabolism
Pubmed
Web of science
Création de la notice
09/03/2008 18:19
Dernière modification de la notice
20/08/2019 12:34
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