FRS proteins are phosphorylated downstream of ALK fusions in a manner that depends on ALK kinase activity (Chikamori et al, 2007). FRS binding and activation contributes to the transformation activity of NPM-ALK, possibly by stimulating MAP kinase or PI3K signaling, consistent with established roles in other pathways (reviewed in Palmer et al, 2009; Gotoh, 2008; Sato and Gotoh, 2010).
Grabbe, C, Vernersson, E, Palmer, RH, Hallberg, B
Yamamoto, T, Tokai-Nishizumi, N, Fujimoto, J, Chikamori, M
Sato, T, Gotoh, N
Gotoh, N
protein tyrosine kinase activity of ALK fusions:FRS [cytosol]
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