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DKT1, a novel K + channel from carrot, forms functional heteromeric channels with KDC1
Author(s) -
Formentin Elide,
Varotto Serena,
Costa Alex,
Downey Patrick,
Bregante Monica,
Naso Alessia,
Picco Cristiana,
Gambale Franco,
Lo Schiavo Fiorella
Publication year - 2004
Publication title -
febs letters
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.593
H-Index - 257
eISSN - 1873-3468
pISSN - 0014-5793
DOI - 10.1016/j.febslet.2004.07.052
Subject(s) - xenopus , embryo , ion channel , protein subunit , shaker , microbiology and biotechnology , biology , potassium channel , chemistry , biophysics , biochemistry , gene , physics , receptor , quantum mechanics , vibration
We report the isolation and characterisation of DKT1, a new carrot K + channel α‐subunit belonging to the Shaker‐like family. DKT1 is expressed in many tissues of the adult plant, suggesting that it may play important roles in both nutrition and other important physiological processes. During embryo development, DKT1 is expressed at later phases implying the involvement of K + in embryo maturation. When co‐expressed with KDC1 in Xenopus oocytes, DKT1 is able to form functional, heteromeric channels, suggesting that possible interactions between these two ion channels in plant tissues may modulate K + uptake.