Protein
Extra-large guanine nucleotide-binding protein 2
Organism
Arabidopsis thaliana
Function
Guanine nucleotide-binding proteins (G proteins) are involved as modulators or transducers in various transmembrane signaling systems (By similarity). Binds GTP with specificity. Plays a role in the root morphogenesis by regulation of the cell proliferation. Acts as a positive regulator in resistance to pathogen that triggers the salicylic acid (SA) pathway. Promotes the DNA binding activity of RTV1 specifically to promoter regions of FT and SOC1 in vivo leading to the activation of floral integrator genes.
Similarity
Belongs to the G-alpha family. XLG subfamily.
Sequence
MAAVIRKLLPFPSPNPKRDNRESDDDDETSSGYRIEYSFASEYKGPLIANVPRALPVEVDQIPTALPVSFSSLRSGISYPVAPLVMTKDTKRPPDSGIEKKNGFVDSAAGSSVVLIGRDVVSGSSSSSSSKRLDVPEEVKSPADFRLSPSSPLSASAREEDHLDDDRVSDVGPRAVRFVEPFQSSECDESSYVSDGESIAATHRAERKGKRGSCYRCQLGNRFTEKEVCIVCDAKYCFNCVRRAMGAMPEGRKCQACIGYRIDESKRASLGKCSRMLKRHLTDSELRQVMNAEITCKANQLPSRLIIVNDKPLSEDELYTLQTCPNPPKKLKPGHYWYDKVAGYWGKIGEKPSQIISPNNSIGGYISEKVSNGDTEIYINGREITKPELTMLKWAGVQCEGKPHFWVDSDGSYREEGQKHPIGNIWSKKRAKIACAVFSLPVPPASSAVEPYDVPLYEQKMLNKLLLIGSEKGGATTIYKQARSLYNVSFSLEDRERIKFIIQTNLYTYLAMVLEAHERFEKEMSNDQSSGNVGDETSAKPGNSINPRLKHFSDWVLKEKEDGNLKIFPPSSRENAQTVADLWRVPAIQATYKRLRDTLPRNAVYFLERILEISRSEYDPSDMDILQAEGLSSMEGLSCVDFSFPSTSQEESLESDYQHDTDMKYQLIRLNPRSLGENWKLLEMFEDADLVIFCVSLTDYAENIEDGEGNIVNKMLATKQLFENMVTHPSLANKRFLLVLTKFDLLEEKIEEVPLRTCEWFEDFNPLISQNQTSRHNPPMAQRAFHYIGYKFKRLYDSILEPVNMRGRSFKPKLFVCQVSLESDTVDNALRYAREILKWHVEETSMFQEMSTTSIEASSSS