tokens: Mutagenesis of SNT1 ( IRS ) CX identified three classes of effector motifs within SNT critical for both sustained ERK activation and neuronal differentiation : 1 ) four phosphotyrosine motifs that mediate recruitment of Grb2 , 2 ) two phosphotyrosine motifs that mediate recruitment of Shp2 , and 3 ) a C-terminal motif that functions by helping to recruit Sos .
folded_tokens: mutagenesis of snt1 ( IRS ) cx identify three class of effector motif within SNT critical for both sustained erk activation and neuronal differentiation : 1 ) four phosphotyrosine motif that mediate recruitment of grb2 , 2 ) two phosphotyrosine motif that mediate recruitment of shp2 , and 3 ) a c-terminal motif that function by help to recruit Sos .