Activation of a plant plasma membrane Ca2+ channel by TGα1, a heterotrimeric G protein α‐subunit homologue
- 6 March 1998
- journal article
- Published by Wiley in FEBS Letters
- Vol. 424 (1-2) , 17-21
- https://doi.org/10.1016/s0014-5793(98)00129-x
Abstract
Wild-type and GTPase-deficient recombinant TGα1 were used along patch-clamp techniques to study the role of heterotrimeric G proteins in the regulation of the hyperpolarized active tomato plasma membrane Ca2+ channel. Recombinant α-subunits induced an increase in channel activity as shown by the increase in channel events and the mean open probability of the channel. Our results suggest a membrane-delimited pathway involving heterotrimeric G proteins in Ca2+ channel activation.Keywords
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