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 gibberellic acid
CAS (1α,2β,4aα,4bβ,10β)-2,4a,7-trihydroxy-1-methyl-8-methylenegibb-3-ene-1,10-dicarboxylic acid 1,4a-lactone

Reference List

PubMed Abstract RScore(About this table)
16291769 Assmann SM: G protein signaling in the regulation of rice seed germination. Sci STKE. 2005 Nov 15;2005(310):cm12.

The plant hormones gibberellic acid (GA) and abscisic acid (ABA) are particularly important positive and negative regulators of these processes, respectively.
2(0,0,0,2) 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
16267057 Assmann SM: G protein signaling in the regulation of Arabidopsis seed germination. Sci STKE. 2005 Nov 1;2005(308):cm11.

The plant hormones gibberellic acid (GA) and brassinosteroids (BRs) are important positive regulators of these processes, whereas the hormone abscisic acid (ABA) is a potent negative regulator.
2(0,0,0,2) Details
15574398 Wang XJ, Cao XL, Hong Y: Isolation and characterization of flower-specific transcripts in Acacia mangium. Tree Physiol. 2005 Feb;25(2):167-78.

Four percent encode other transcription factors and 10% encode regulatory proteins such as G proteins, kinases and phosphatases.
Flower-specific transcripts for gibberellic acid (GA) synthesis and GA-induced proteins, as well as other stress- and pathogenesis-related genes (9%), implicate their involvement in A. mangium flower development.
1(0,0,0,1) Details
15202712 Kolla VA, Suhita D, Raghavendra AS: Marked changes in volume of mesophyll protoplasts of pea (Pisum sativum) on exposure to growth hormones. J Plant Physiol. 2004 May;161(5):557-62.


Four plant hormones: gibberellic acid (GA3), indole 3-acetic acid (IAA), abscisic acid (ABA)(+/-) and methyl jasmonate (MJ), caused marked changes in the volume of mesophyll protoplasts.
0(0,0,0,0) Details
17117160 Wang L, Xu YY, Ma QB, Li D, Xu ZH, Chong K: Heterotrimeric G protein alpha subunit is involved in rice brassinosteroid response. Cell Res. 2006 Dec;16(12):916-22.

The null mutation of RGA (rice heterotrimeric G protein alpha subunit), which encodes the alpha subunit of heterotrimeric G protein in rice, causes severe dwarfism and reduced responsiveness to gibberellic acid in rice.
84(1,1,1,4) 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.

Seeds that carry a protein null mutation in the gene encoding the alpha subunit of the G protein in Arabidopsis (GPA1) are 100-fold less responsive to gibberellic acid (GA), have increased sensitivity to high levels of Glc, and have a near-wild-type germination response to abscisic acid and ethylene, indicating that GPA1 does not directly couple these signals in germination control.
3(0,0,0,3) Details
11027718 Ritchie S, Gilroy S: Abscisic acid stimulation of phospholipase D in the barley aleurone is G-protein-mediated and localized to the plasma membrane. Plant Physiol. 2000 Oct;124(2):693-702.

Application of pertussis toxin to intact aleurone protoplasts inhibited the ability of ABA to activate PLD as well as antagonizing the ability of ABA to down-regulate gibberellic acid-stimulated alpha-amylase production.
2(0,0,0,2) Details