tokens: Kinase deficient erbB proteins reduced epidermal growth factor ( EGF ) - induced tyrosine phosphorylation of endogenous Shc proteins and also reduced immediate and sustained EGF induced ERK MAPK activities in human glioblastoma cells , although basal ERK MAPK activities were unaffected .
folded_tokens: kinase deficient erbb protein reduce epidermal growth factor ( egf ) - induce tyrosine phosphorylation of endogenous shc protein and also reduce immediate and sustained egf induce erk mapk activity in human glioblastoma cell , although basal erk mapk activity be unaffected .