- Two SH2 domains of p120 Ras GTPase-activating protein bind synergistically to tyrosine phosphorylated p190 Rho GTPase-activating protein. Bryant, S.S., Briggs, S., Smithgall, T.E., Martin, G.A., McCormick, F., Chang, J.H., Parsons, S.J., Jove, R. J. Biol. Chem. (1995)