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Literature DB >> 9537507

Activation of a plant plasma membrane Ca2+ channel by TGalpha1, a heterotrimeric G protein alpha-subunit homologue.

G S Aharon¹, A Gelli, W A Snedden, E Blumwald.

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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Year: 1998 PMID： 9537507 DOI： 10.1016/s0014-5793(98)00129-x

Source DB: PubMed Journal: FEBS Lett ISSN： 0014-5793 Impact factor: 4.124

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Cited

18 in total

1. Arabidopsis thaliana 'extra-large GTP-binding protein' (AtXLG1): a new class of G-protein.

Authors: Y R Lee; S M Assmann
Journal: Plant Mol Biol Date: 1999-05 Impact factor: 4.076

2. Suppression of the heterotrimeric G protein causes abnormal morphology, including dwarfism, in rice.

Authors: Y Fujisawa; T Kato; S Ohki; A Ishikawa; H Kitano; T Sasaki; T Asahi; Y Iwasaki
Journal: Proc Natl Acad Sci U S A Date: 1999-06-22 Impact factor: 11.205

3. Overexpression of the heterotrimeric G-protein alpha-subunit enhances phytochrome-mediated inhibition of hypocotyl elongation in Arabidopsis.

Authors: H Okamoto; M Matsui; X W Deng
Journal: Plant Cell Date: 2001-07 Impact factor: 11.277

Review 4. Heterotrimeric and unconventional GTP binding proteins in plant cell signaling.

Authors: Sarah M Assmann
Journal: Plant Cell Date: 2002 Impact factor: 11.277

5. The beta-subunit of the Arabidopsis G protein negatively regulates auxin-induced cell division and affects multiple developmental processes.

Authors: Hemayet Ullah; Jin-Gui Chen; Brenda Temple; Douglas C Boyes; José M Alonso; Keith R Davis; Joseph R Ecker; Alan M Jones
Journal: Plant Cell Date: 2003-02 Impact factor: 11.277

Activation of a plant plasma membrane Ca2+ channel by TGalpha1, a heterotrimeric G protein alpha-subunit homologue.

1. Arabidopsis thaliana 'extra-large GTP-binding protein' (AtXLG1): a new class of G-protein.

2. Suppression of the heterotrimeric G protein causes abnormal morphology, including dwarfism, in rice.

3. Overexpression of the heterotrimeric G-protein alpha-subunit enhances phytochrome-mediated inhibition of hypocotyl elongation in Arabidopsis.

Review 4. Heterotrimeric and unconventional GTP binding proteins in plant cell signaling.

5. The beta-subunit of the Arabidopsis G protein negatively regulates auxin-induced cell division and affects multiple developmental processes.

6. The heterotrimeric G protein alpha subunit acts upstream of the small GTPase Rac in disease resistance of rice.

Review 7. Plants: the latest model system for G-protein research.

8. Mastoparan rapidly activates plant MAP kinase signaling independent of heterotrimeric G proteins.

9. Involvement of cAMP signaling in elicitor-induced phytoalexin accumulation in Cupressus lusitanica cell cultures.

10. Differential responses of G-protein Arabidopsis thaliana mutants to ozone.