Differential interaction of the ras family GTP-binding proteins H-Ras, Rap1A, and R-Ras with the putative effector molecules Raf kinase and Ral-guanine nucleotide exchange factor.

@article{Herrmann1996DifferentialIO,
  title={Differential interaction of the ras family GTP-binding proteins H-Ras, Rap1A, and R-Ras with the putative effector molecules Raf kinase and Ral-guanine nucleotide exchange factor.},
  author={Christian Herrmann and Gudrun Horn and Marcel Spaargaren and Alfred Wittinghofer},
  journal={The Journal of biological chemistry},
  year={1996},
  volume={271 12},
  pages={6794-800}
}
The interactions of H-Ras, R-Ras, and Rap1A with the Ras-binding domains (RBD) of the c-Raf kinase and of the Ral guanine nucleotide exchange factor (RGF) was studied biochemically in solution. From deletion cloning the RGF-RBD was defined as a 97-amino acid-long fragment from the C-terminal end of the human RGF, which is an independent folding domain with high stability. Interestingly, whereas H-Ras binds with high affinity (KD = 20 nM) to Raf-RBD and with low affinity (KD = 1 microM) to RGF… CONTINUE READING

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