Heteromerization of Arabidopsis Kv channel a-subunits: data and prospects
| Autor: | Geoffrey Duby, Erwan Michard, Linda Jeanguenin, Benoît Lacombe, Jean-Baptiste Thibaud, Jérôme Xicluna, Eric Hosy, Ingo Dreyer, Carine Alcon, Anne Lebaudy |
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| Přispěvatelé: | Biochimie et Physiologie Moléculaire des Plantes (BPMP), Université de Montpellier (UM)-Centre international d'études supérieures en sciences agronomiques (Montpellier SupAgro)-Institut national d’études supérieures agronomiques de Montpellier (Montpellier SupAgro)-Institut National de la Recherche Agronomique (INRA)-Centre National de la Recherche Scientifique (CNRS), Université de Montpellier (UM)-Centre National de la Recherche Scientifique (CNRS)-Centre international d'études supérieures en sciences agronomiques (Montpellier SupAgro)-Institut National de la Recherche Agronomique (INRA)-Institut national d’études supérieures agronomiques de Montpellier (Montpellier SupAgro), Institut national d'enseignement supérieur pour l'agriculture, l'alimentation et l'environnement (Institut Agro)-Institut national d'enseignement supérieur pour l'agriculture, l'alimentation et l'environnement (Institut Agro), UCL - SST/ISV - Institut des sciences de la vie |
| Jazyk: | angličtina |
| Rok vydání: | 2008 |
| Předmět: |
0106 biological sciences
Membrane potential 0303 health sciences Voltage-gated ion channel Mini Reviews Plant Science Potassium transport Biology biology.organism_classification Bioinformatics 01 natural sciences Potassium channel Cell biology Kv channel 03 medical and health sciences [SDV.BV.AP]Life Sciences [q-bio]/Vegetal Biology/Plant breeding Arabidopsis Arabidopsis genome Heterologous expression QH506 030304 developmental biology 010606 plant biology & botany |
| Zdroj: | Plant Signaling and Behavior Plant Signaling and Behavior, Taylor & Francis, 2008, 3 (9), pp.622-625. ⟨10.4161/psb.3.9.6209⟩ ResearcherID Scopus-Elsevier Plant signaling & behavior, Vol. 3, no. 9, p. 622-625 (2008) |
| ISSN: | 1559-2316 1559-2324 |
| DOI: | 10.4161/psb.3.9.6209⟩ |
| Popis: | SCL; International audience; Potassium translocation in plants is accomplished by a large variety of transport systems. Most of the available molecular information on these proteins concerns voltage-gated potassium channels (Kv channels). The Arabidopsis genome comprises nine genes encoding a-subunits of Kv channels. Based on knowledge of their animal homologues, and on biochemical investigations, it is broadly admitted that four such polypeptides must assemble to yield a functional Kv channel. The intrinsic functional properties of Kv channel a-subunits have been described by expressing them in suitable heterologous contexts where homo-tetrameric channels could be characterized. However, due to the high similarity of both the polypeptidic sequence and the structural scheme of Kv channel a-subunits, formation of heteromeric Kv channels by at least two types of a-subunits is conceivable. Several examples of such heteromeric plant Kv channels have been studied in heterologous expression systems and evidence that heteromerization actually occurs in planta has now been published. It is therefore challenging to uncover the physiological role of this heteromerization. Fine tuning of Kv channels by heteromerisation could be relevant not only to potassium transport but also to electrical signaling within the plant. |
| Databáze: | OpenAIRE |
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