- Fyn and Lyn phosphorylate the Fc receptor gamma chain downstream of glycoprotein VI in murine platelets, and Lyn regulates a novel feedback pathway. Quek, L.S., Pasquet, J.M., Hers, I., Cornall, R., Knight, G., Barnes, M., Hibbs, M.L., Dunn, A.R., Lowell, C.A., Watson, S.P. Blood (2000)