| Gene Symbol |
AGB1
|
| Entrez Gene |
829597
|
| Alt Symbol |
ARABIDOPSIS G-PROTEIN BETA SUBUNIT, ATAGB1, ELK4, ERECTA-LIKE 4, GTP binding protein beta 1, T4L20.40, T4L20_40
|
| Species |
Arabidopsis thaliana
|
| Gene Type |
protein-coding
|
| Description |
guanine nucleotide-binding protein subunit beta
|
| Other Description |
-
|
| Swissprots |
P49177
|
| Accessions |
AEE86379 AEE86380 AEE86381 AEE86382 CAA18825 CAB80163 P49177 U12232 AAA50445 NM_001085022 NP_001078491 NM_119611 NP_195172 NM_179163 NP_849494 NM_202954 NP_974683
|
| Function |
Guanine nucleotide-binding proteins (G proteins) are involved as a modulator or transducer in various transmembrane signaling systems. The beta and gamma chains are required for the GTPase activity, for replacement of GDP by GTP, and for G protein- effector interaction. Together with GCR1 and GPA1, acts as a negative regulator of ABA during seed germination and early seedling development. The heterotrimeric G-protein controls defense responses to necrotrophic and vascular fungi probably by modulating cell wall-related genes expression (e.g. lower xylose content in cell walls); involved in resistance to fungal pathogens such as Alternaria brassicicola and Fusarium oxysporum. Modulates root architecture (e.g. lateral root formation). Acts with XGL3 in the positive regulation of root waving and root skewing. {ECO:0000269|PubMed:16581874, ECO:0000269|PubMed:17468261, ECO:0000269|PubMed:18397373, ECO:0000269|PubMed:18441222, ECO:0000269|PubMed:19948787, ECO:0000269|PubMed:20862254, ECO:0000
|
| Subcellular Location |
Cell membrane {ECO:0000269|PubMed:17158913}. Cytoplasm {ECO:0000269|PubMed:17158913}. Note=Localized to the cell membrane when attached to gamma subunits as GG1 and GG2.
|
| Tissue Specificity |
Expressed in seedlings (especially at the hypocotyl/root junction), roots, leaves (restricted to veins and guard cells), and flowers. Also present in hydathods. {ECO:0000269|PubMed:17468261, ECO:0000269|PubMed:18441222}.
|