Fig. 1.
Intracellular domains of EGFR, FGFR1 and IGF1R. Tyrosine residues that have been shown to be physiological sites of phosphorylation are colored red; the other tyrosines have been designated ‘nonphysiological’ and are colored green. Asterisks denote tyrosine residues located in the activation loops of the kinase domains.
