| Transfection of Dab 2 into a Dab 2 negative cell line ( 293 cells ) decreased the amount of Grb 2 associated with Sos , suggesting that Dab 2 competes with Sos for binding to Grb 2 . 0.8425977^^^ Herein , we have investigated the possibility that Dab 2 interacts with Grb 2 . 0.63380488^^^ |