Roles of tandem‐pore K+ channels in plants – a puzzle still to be solved*
Copyright policy )Roles of tandem‐pore K+ channels in plants – a puzzle still to be solved*
AbstractThe group of voltage‐independent K+ channels in Arabidopsis thaliana consists of six members, five tandem‐pore channels (TPK1–TPK5) and a single Kir‐like channel (KCO3). All TPK/KCO channels are located at the vacuolar membrane except for TPK4, which was shown to be a plasma membrane channel in pollen. The vacuolar channels interact with 14‐3‐3 proteins (also called General Regulating Factors, GRFs), indicating regulation at the level of protein–protein interactions. Here we review current knowledge about these ion channels and their genes, and highlight open questions that need to be urgently addressed in future studies to fully appreciate the physiological functions of these ion channels.
- National Research Council Sri Lanka
- University of Würzburg Germany
- University Hospital Würzburg Germany
- University of Potsdam Germany
- Istituto di Biofisica Italy
TPK, vacuole, Arabidopsis Proteins, Arabidopsis, 14-3-3 protein, regulation, Endoplasmic Reticulum, tonoplast, Potassium Channels, Tandem Pore Domain, 14-3-3 Proteins, Vacuoles, Institut für Biochemie und Biologie, potassium channel
TPK, vacuole, Arabidopsis Proteins, Arabidopsis, 14-3-3 protein, regulation, Endoplasmic Reticulum, tonoplast, Potassium Channels, Tandem Pore Domain, 14-3-3 Proteins, Vacuoles, Institut für Biochemie und Biologie, potassium channel
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