Phosphoinositide 3-kinase and P72syk non -covalently associate with the low affinity Fc gamma receptor on human platelets through an immuno -receptor tyrosine-based activation motif. Reconstitution with synthetic phosphopeptides - Chacko, Gw; Brandt, Jt; Coggeshall, Km; Anderson, Cl (J Biol Chem, 1996)