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Hoffmann, R. A wiki for the life sciences where authorship matters. Nature Genetics (2008)
 
 
 
 
 

A multifunctional docking site mediates signaling and transformation by the hepatocyte growth factor/scatter factor receptor family.

Signaling by tyrosine kinase receptors is mediated by selective interactions between individual Src homology 2 (SH2) domains of cytoplasmic effectors and specific phosphotyrosine residues in the activated receptor. Here, we report the existence in the hepatocyte growth factor/scatter factor ( HGF/SF) receptor of a multifunctional docking site made of the tandemly arranged degenerate sequence YVH/NV. Phosphorylation of this site mediates intermediate- to high-affinity interactions with multiple SH2-containing signal transducers, including phosphatidylinositol 3-kinase, phospholipase C gamma, pp60c-src, and the GRB-2-Sos complex. Mutation of the two tyrosines results in loss of biological function, as shown by abrogation of the transforming activity in the oncogenic counterpart of the receptor. The same bidentate motif is conserved in the evolutionarily related receptors Sea and Ron, suggesting that in all members of the HGF/SF receptor family, signal transduction is channeled through a multifunctional binding site.[1]

References

  1. A multifunctional docking site mediates signaling and transformation by the hepatocyte growth factor/scatter factor receptor family. Ponzetto, C., Bardelli, A., Zhen, Z., Maina, F., dalla Zonca, P., Giordano, S., Graziani, A., Panayotou, G., Comoglio, P.M. Cell (1994) [Pubmed]
 
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