Protein Information

Name G protein
Synonyms G gamma I; Guanine nucleotide binding protein 2; G protein; GNG 2; GNG2; GNGT 2; GNGT2; Guanine nucleotide binding protein gamma 2…

Compound Information

Name gibberellins
CAS gibberellins

Reference List

PubMed Abstract RScore(About this table)
9800205 Hooley R: Plant hormone perception and action: a role for G-protein signal transduction?. Philos Trans R Soc Lond B Biol Sci. 1998 Sep 29;353(1374):1425-30.

6(0,0,0,6) Details
15613689 Assmann SM: Plant G proteins, phytohormones, and plasticity: three questions and a speculation. Sci STKE. 2004 Dec 21;2004(264):re20.

Such mutants exhibit altered responsiveness to a number of plant hormones, including gibberellins, brassinosteroids, abscisic acid, and auxin.
5(0,0,0,5) Details
12068128 Ullah H, Chen JG, Wang S, Jones AM: Role of a heterotrimeric G protein in regulation of Arabidopsis seed germination. Plant Physiol. 2002 Jun;129(2):897-907.

3(0,0,0,3) Details
19899704 Shpakov AO: [Chemosignaling systems of plants] . Tsitologiia. 2009;51(9):721-34.

Among them there activated by cytokinins, ethylene and brassinosteroids two-component signaling systems involving receptor protein kinases as a sensor, and activated by auxin, gibberellins and jasmonates multicomponent SCF-complexes possessing ubiquitin ligase activity.
Recently, signaling systems involving receptors of the serpentine type and coupled with them heterotrimeric G-proteins which are widely presented in the animals and fungi were found in plants.
2(0,0,0,2) Details
11027362 Ueguchi-Tanaka M, Fujisawa Y, Kobayashi M, Ashikari M, Iwasaki Y, Kitano H, Matsuoka M: Rice dwarf mutant d1, which is defective in the alpha subunit of the heterotrimeric G protein, affects gibberellin signal transduction. Proc Natl Acad Sci U S A. 2000 Oct 10;97(21):11638-43.

2(0,0,0,2) Details
10707075 Lovegrove A, Hooley R: Gibberellin and abscisic acid signalling in aleurone. Trends Plant Sci. 2000 Mar;5(3):102-10.


These include the Galpha subunit of a heterotrimeric G protein, a transient elevation in cGMP, Ca2+-dependent and Ca2+-independent events in the cytoplasm, reversible protein phosphory-lation, and several promoter cis-elements and transcription factors, including GAMYB.
1(0,0,0,1) Details
10066618 Bethke PC, Jones RL: Gibberellin signaling. Curr Opin Plant Biol. 1998 Oct;1(5):440-6.


The list of intracellular gibberellin signal-transduction elements has been expanded to include G-proteins and protein kinases.
1(0,0,0,1) Details
16384900 Bethke PC, Hwang YS, Zhu T, Jones RL: Global patterns of gene expression in the aleurone of wild-type and dwarf1 mutant rice. Plant Physiol. 2006 Feb;140(2):484-98. Epub 2005 Dec 29.


The d1 protein is the sole alpha-subunit of heterotrimeric G-proteins in rice.
1(0,0,0,1) Details
15246060 Nanjo Y, Asatsuma S, Itoh K, Hori H, Mitsui T, Fujisawa Y: Posttranscriptional regulation of alpha-amylase II-4 expression by gibberellin in germinating rice seeds. Plant Physiol Biochem. 2004 Jun;42(6):477-84.


While the gibberellin-induced expression of alpha-amylase II-4 occurred normally in the aleurone layer of a rice dwarf mutant d1 which is defective in the alpha subunit of the heterotrimeric G protein.
1(0,0,0,1) Details
13677471 Yang G, Matsuoka M, Iwasaki Y, Komatsu S: A novel brassinolide-enhanced gene identified by cDNA microarray is involved in the growth of rice. Plant Mol Biol. 2003 Jul;52(4):843-54.

BL effect in the d1 mutant rice was much weaker than that in its wild-type control, indicating that heterotrimeric G protein may be a component of BRs signaling.
Besides, auxin and gibberellins also increased its expression.
1(0,0,0,1) Details
20238175 Gao Y, Li T, Liu Y, Ren C, Zhao Y, Wang M: Isolation and characterization of gene encoding G protein alpha subunit protein responsive to plant hormones and abiotic stresses in Brassica napus. Mol Biol Rep. 2010 Mar 18.

G protein plays an important role in signal pathways and involved in various signal transduction systems in plant.
The expression of BnGA1 was also induced by low gibberellins acid 3 (GA (3)) concentrations and higher GA (3) concentrations inhibit the expression of BnGA1.
1(0,0,0,1) Details
15159627 Day RB, Tanabe S, Koshioka M, Mitsui T, Itoh H, Ueguchi-Tanaka M, Matsuoka M, Kaku H, Shibuya N, Minami E: Two rice GRAS family genes responsive to N -acetylchitooligosaccharide elicitor are induced by phytoactive gibberellins: evidence for cross-talk between elicitor and gibberellin signaling in rice cells. Plant Mol Biol. 2004 Jan;54(2):261-72.

0(0,0,0,0) Details
15181210 Chen JG, Pandey S, Huang J, Alonso JM, Ecker JR, Assmann SM, Jones AM: GCR1 can act independently of heterotrimeric G-protein in response to brassinosteroids and gibberellins in Arabidopsis seed germination. Plant Physiol. 2004 Jun;135(2):907-15. Epub 2004 Jun 4.
9(0,0,1,4) Details
11522903 Fujisawa Y, Kato H, Iwasaki Y: Structure and function of heterotrimeric G proteins in plants. Plant Cell Physiol. 2001 Aug;42(8):789-94.

7(0,0,0,7) Details