sentences:  These newly phosphorylated sites bind cytosolic docking proteins such as FRS2, PRKCG and GRB2 which proceed to activate cell signaling pathways that lead to cellular differentiation, growth, proliferation, prolonged survival, migration, and other functions.FGFRL1 lacks a prominent intracellular domain and tyrosine kinase activity; it may serve as a decoy receptor by binding with and thereby diluting the action of FGFs.There are 18 known FGRs that bind to and activate one or more of the FGFRs