The Arabidopsis putative G protein-coupled receptor GCR1 interacts with the G protein alpha subunit GPA1 and regulates abscisic acid signaling.

@article{Pandey2004TheAP,
  title={The Arabidopsis putative G protein-coupled receptor GCR1 interacts with the G protein alpha subunit GPA1 and regulates abscisic acid signaling.},
  author={Sona Pandey and Sarah M. Assmann},
  journal={The Plant cell},
  year={2004},
  volume={16 6},
  pages={
          1616-32
        }
}
Heterotrimeric G proteins composed of alpha, beta, and gamma subunits link ligand perception by G protein-coupled receptors (GPCRs) with downstream effectors, providing a ubiquitous signaling mechanism in eukaryotes. The Arabidopsis thaliana genome encodes single prototypical Galpha (GPA1) and Gbeta (AGB1) subunits, and two probable Ggamma subunits (AGG1 and AGG2). One Arabidopsis gene, GCR1, encodes a protein with significant sequence similarity to nonplant GPCRs and a predicted 7… CONTINUE READING

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