scholarly journals Role of the G-Protein Subunit α-Gustducin in Taste Cell Responses to Bitter Stimuli

2003 ◽  
Vol 23 (30) ◽  
pp. 9947-9952 ◽  
Author(s):  
Alejandro Caicedo ◽  
Elizabeth Pereira ◽  
Robert F. Margolskee ◽  
Stephen D. Roper
Keyword(s):  
G Protein ◽  
Taste Cell ◽  
Protein Subunit ◽  
Cell Responses

scholarly journals Illuminating the role of the Gα heterotrimeric G protein subunit, RGA1, in regulating photoprotection and photoavoidance in rice

2018 ◽  
Vol 41 (2) ◽  
pp. 451-468 ◽  
Author(s):  
Ángel Ferrero-Serrano ◽  
Zhao Su ◽  
Sarah M. Assmann
Keyword(s):  
G Protein ◽  
Protein Subunit ◽  
Heterotrimeric G Protein

α Gustducin: A Taste Cell Specific G Protein Subunit Closely Related to the α Transducins

1992 ◽  
pp. 9-14 ◽  
Author(s):  
Susan K. McLaughlin ◽  
Peter J. McKinnon ◽  
Robert F. Margolskee
Keyword(s):  
G Protein ◽  
Taste Cell ◽  
Protein Subunit

scholarly journals Role of Two G-Protein Alpha Subunits, TgaA and TgaB, in the Antagonism of Plant Pathogens by Trichoderma virens

2004 ◽  
Vol 70 (1) ◽  
pp. 542-549 ◽  
Author(s):  
Prasun K. Mukherjee ◽  
Jagannathan Latha ◽  
Ruthi Hadar ◽  
Benjamin A. Horwitz
Keyword(s):  
G Protein ◽  
Plant Pathogens ◽  
Sclerotium Rolfsii ◽  
Trichoderma Virens ◽  
Loss Of Function ◽  
Wild Type ◽  
Protein Subunit ◽  
Α Subunit ◽  
Germ Tubes

ABSTRACT G-protein α subunits are involved in transmission of signals for development, pathogenicity, and secondary metabolism in plant pathogenic and saprophytic fungi. We cloned two G-protein α subunit genes, tgaA and tgaB, from the biocontrol fungus Trichoderma virens. tgaA belongs to the fungal Gαi class, while tgaB belongs to the class defined by gna-2 of Neurospora crassa. We compared loss-of-function mutants of tgaA and tgaB with the wild type for radial growth, conidiation, germination of conidia, the ability to overgrow colonies of Rhizoctonia solani and Sclerotium rolfsii in confrontation assays, and the ability to colonize the sclerotia of these pathogens in soil. Both mutants grew as well as the wild type, sporulated normally, did not sporulate in the dark, and responded to blue light by forming a conidial ring. The tgaA mutants germinated by straight unbranched germ tubes, while tgaB mutants, like the wild type, germinated by wavy and highly branched germ tubes. In confrontation assays, both tgaA and tgaB mutants and the wild type overgrew, coiled, and lysed the mycelia of R. solani, but tgaA mutants had reduced ability to colonize S. rolfsii colonies. In the soil plate assay, both mutants parasitized the sclerotia of R. solani, but tgaA mutants were unable to parasitize the sclerotia of S. rolfsii. Thus, tgaA is involved in antagonism against S. rolfsii, but neither G protein subunit is involved in antagonism against R. solani. T. virens, which has a wide host range, thus employs a G-protein pathway in a host-specific manner.

Mutations in G-protein subunit [alpha]q(GNAQ) are not a cause of familial hypocalciuric hypercalcaemia

2015 ◽  
Author(s):  
Manish Modi ◽  
Treena Cranston ◽  
Angela Rogers ◽  
Sarah Howles ◽  
Caroline Gorvin ◽  
...  
Keyword(s):  
G Protein ◽  
Protein Subunit
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