scholarly journals The Arabidopsis heterotrimeric G‐protein β subunit,AGB1, is required for guard cell calcium sensing and calcium‐induced calcium release

2019 ◽  
Author(s):  
Byeong Wook Jeon ◽  
Biswa R. Acharya ◽  
Sarah M. Assmann
Keyword(s):  
G Protein ◽  
Guard Cell ◽  
Calcium Release ◽  
Β Subunit ◽  
Heterotrimeric G Protein ◽  
Cell Calcium ◽  
Calcium Sensing ◽  
Calcium Induced Calcium Release

scholarly journals The Ca2+-dependent Binding of Calmodulin to an N-terminal Motif of the Heterotrimeric G Protein β Subunit

1997 ◽  
Vol 272 (30) ◽  
pp. 18801-18807 ◽  
Author(s):  
Mingyao Liu ◽  
Bo Yu ◽  
Osamu Nakanishi ◽  
Thomas Wieland ◽  
Melvin Simon
Keyword(s):  
G Protein ◽  
Β Subunit ◽  
Heterotrimeric G Protein

Heterotrimeric G protein β subunit GPB1 and MAP kinase MPK1 regulate hyphal growth and female fertility in Fusarium sacchari

Mycoscience ◽  
2013 ◽  
Vol 54 (2) ◽  
pp. 148-157 ◽  
Author(s):  
Isao Kaneko ◽  
Makoto Iyama-Kadono ◽  
Kana Togashi-Nishigata ◽  
Isamu Yamaguchi ◽  
Tohru Teraoka ◽  
...  
Keyword(s):  
Map Kinase ◽  
G Protein ◽  
Hyphal Growth ◽  
Female Fertility ◽  
Β Subunit ◽  
Heterotrimeric G Protein ◽  
Fusarium Sacchari

Heterotrimeric G Protein α and β Subunit Genes of the Ascidian, Halocynthia roretzi

2001 ◽  
pp. 147-152
Author(s):  
Tatsuo Iwasa ◽  
Kazue Kanehara ◽  
Ayako Watari ◽  
Mahito Ohkuma ◽  
Masashi Nakagawa ◽  
...  
Keyword(s):  
G Protein ◽  
Β Subunit ◽  
Halocynthia Roretzi ◽  
Heterotrimeric G Protein

A cytosolic sperm factor stimulates repetitive calcium increases and mimics fertilization in hamster eggs

Development ◽  
1990 ◽  
Vol 110 (4) ◽  
pp. 1295-1302 ◽  
Author(s):  
K. Swann
Keyword(s):  
G Protein ◽  
Calcium Release ◽  
Phorbol Esters ◽  
Free Calcium ◽  
Vitro Fertilization ◽  
Protein Factor ◽  
G Protein Signalling ◽  
Sperm Factor ◽  
Calcium Induced Calcium Release

Microinjection of cytosolic sperm extracts into unfertilized golden hamster eggs caused a series of increases in cytoplasmic free calcium, Ca2+i, and membrane hyperpolarizing responses, HRs. These HRs and Ca2+i transients are similar to those seen during in vitro fertilization of hamster eggs. The sperm factor that is responsible for causing these effects appears to be of high molecular weight and protein based. Injection of sperm factor activated eggs and mimicked fertilization in causing repetitive HRs in the presence of phorbol esters and in sensitizing the egg to calcium-induced calcium release. Since these effects cannot be mimicked by injecting G-protein agonists or calcium-containing solutions, it seems unlikely that a receptor-G-protein signalling system is involved at fertilization. These data instead suggest a novel signal transduction system operates during mammalian fertilization in which a protein factor is transferred from the sperm into the egg cytoplasm after gamete membrane fusion.

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