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Heterotrimeric G-protein β-subunit is localized in the plasma membrane and nuclei of tobacco leaves

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Abstract

Heterotrimeric G-proteins are involved in a variety of cellular responses, but relatively little is known about their function and biochemistry in plants. Antibodies raised against the tobacco heterotrimeric G-protein β-subunit (Gβ) were used to analyse its distribution in tobacco leaves. In young tissue the protein level was relatively high, while it declined substantially during later stages of leaf development. Cell fractionation revealed that Gβ is tightly associated with plasma membrane, but can also be detected in purified nuclei.

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  1. Lehrstuhl Pflanzenphysiologie, Institut für Allgemeine Botanik, Dornburger Strasse 159, 07743, Jena, Germany

    Tatjana Peškan & Ralf Oelmüller

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  1. Tatjana Peškan
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  2. Ralf Oelmüller
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Peškan, T., Oelmüller, R. Heterotrimeric G-protein β-subunit is localized in the plasma membrane and nuclei of tobacco leaves. Plant Mol Biol 42, 915–922 (2000). https://doi.org/10.1023/A:1006477631166

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