Arabidopsis extra-large G proteins (XLGs) regulate root morphogenesis.

@article{Ding2008ArabidopsisEG,
  title={Arabidopsis extra-large G proteins (XLGs) regulate root morphogenesis.},
  author={Lei Ding and Sona Pandey and Sarah M. Assmann},
  journal={The Plant journal : for cell and molecular biology},
  year={2008},
  volume={53 2},
  pages={248-63}
}
As in mammalian systems, heterotrimeric G proteins, composed of alpha, beta and gamma subunits, are present in plants and are involved in the regulation of development and cell signaling. Besides the sole prototypical G protein alpha subunit gene, GPA1, the Arabidopsis thaliana genome has three extra-large GTP-binding protein (XLG)-encoding genes: XLG1 (At2g23460), XLG2 (At4g34390) and XLG3 (At1g31930). The C-termini of the XLGs are Galpha domains that are homologous to GPA1, whereas their N… CONTINUE READING

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