. "Reviewed: Trowsdale, J, 2008-02-26 12:02:59"^^ . "Authored: Garapati, P V, de Bono, B, 2008-03-05 10:26:56"^^ . "Sos-1 bound to Grb2:Tie2 complex promotes the exchange of inactive Ras-GDP to active Ras-GTP."^^ . . . . . "Sos-mediated nucleotide exchange of Ras (Tie2 receptor:Grb2:Sos)"^^ . . . . .