Structural evidence for a common intermediate in small G protein-GEF reactions.

@article{Thomas2007StructuralEF,
  title={Structural evidence for a common intermediate in small G protein-GEF reactions.},
  author={Christoph Thomas and Inka Fricke and Andrea Scrima and Antje Berken and Alfred Wittinghofer},
  journal={Molecular cell},
  year={2007},
  volume={25 1},
  pages={141-9}
}
Rho of plants (Rop) proteins belong to the superfamily of small GTP-binding (G) proteins and are vital regulators of signal transduction in plants. In order to become activated, Rop proteins need to exchange GDP for GTP, an intrinsically slow process catalyzed by guanine nucleotide exchange factors (GEFs). RopGEFs show no homology to animal RhoGEFs, and the catalytic mechanism remains elusive. GEF-catalysed nucleotide exchange proceeds via transient ternary and stable binary complexes. While a… CONTINUE READING

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