doi: 10.1016/s0014-5793(98)00129-x.
Activation of a plant plasma membrane Ca2+ channel by TGalpha1, a heterotrimeric G protein alpha-subunit homologue
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- PMID: 9537507
- DOI: 10.1016/s0014-5793(98)00129-x
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Activation of a plant plasma membrane Ca2+ channel by TGalpha1, a heterotrimeric G protein alpha-subunit homologue
FEBS Lett.
.
Free article
Abstract
Wild-type and GTPase-deficient recombinant TGalpha1 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 alpha-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.
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