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XB-ART-4943
FEBS Lett 2003 Jul 31;5481-3:43-8. doi: 10.1016/s0014-5793(03)00726-9.
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Inhibition of FGF receptor signalling in Xenopus oocytes: differential effect of Grb7, Grb10 and Grb14.

Cailliau K , Le Marcis V , Béréziat V , Perdereau D , Cariou B , Vilain JP , Burnol AF , Browaeys-Poly E .


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The role of Grb7 adapters, Grb7, Grb10, and Grb14, was investigated in Xenopus oocytes expressing fibroblast growth factor receptors (FGFR). FGF-induced maturation of FGFR-expressing oocytes was blocked by previous injection of Grb7 or Grb14, but not Grb10. This effect correlated with Grb7/14 binding to the receptor, and inhibition of the Ras-dependent pathway. Interestingly, the phosphorylated insulin receptor interacting region (PIR) and Src 2 homology domains (SH2) of Grb7 and Grb14 were differently implicated in the inhibition of FGFR signalling. This study provided further evidence for specificity of the biological action of the Grb7 adapters on receptor tyrosine kinase signalling.

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Species referenced: Xenopus
Genes referenced: grb10 grb14 grb7 ins