. "Authored: Garapati, P V, 2009-02-24 10:31:15"^^ . "Edited: Garapati, P V, 2009-02-24 10:58:20"^^ . "Reviewed: Maness, PF, Walmod, PS, 2009--0-5-"^^ . "The Tyr420 residue located in the activation loop of Fyn is responsible for its enzymatic activity. Once the Tyr531 in its negative regulatory site is dephosphorylated by RPTPalpha, Fyn undergoes autophosphorylation on Tyr420 for its maximum activity."^^ . . . . . . . "Autophosphorylation of NCAM1 bound Fyn"^^ . "2.7.10"^^ . . . . .