Luciferase-Based Assay: Recombinant human c-Src or Yes (28 ng/well, Panvera/Invitrogen, Madison Wis.), ATP (3 μM), a tyrosine kinase substrate (PTK2, 250 μM, Promega Corp., Madison Wis.), and test agents (at concentrations ranging from about 1 nM/l to about 100 μM/l), in the presence of Src kinase reaction buffer (Upstate USA, Lake Placid N.Y.). After reacting for about 90 minutes at room temperature, residual ATP was determined using a luciferase-based assay (KinaseGlo, Promega Corp.) as a measure of kinase activity.
Luciferase-Based Assay: Recombinant human c-Src or Yes (28 ng/well, Panvera/Invitrogen, Madison Wis.), ATP (3 μM), a tyrosine kinase substrate (PTK2, 250 μM, Promega Corp., Madison Wis.), and test agents (at concentrations ranging from about 1 nM/l to about 100 μM/l), in the presence of Src kinase reaction buffer (Upstate USA, Lake Placid N.Y.). After reacting for about 90 minutes at room temperature, residual ATP was determined using a luciferase-based assay (KinaseGlo, Promega Corp.) as a measure of kinase activity.