| Assay Method Information | |
| | Coupled ERK2 (cERK) Assay |
| Description: | Activity of compounds against inactive ERK2 was tested in a coupled MEK1/ERK2 IMAP assay as follows: Compounds were diluted to 25x final test concentration in 100% DMSO. 14 ul of kinase buffer (10 mM Tris.HCl pH 7.2, 10 mM MgCl2, 0.01% Tween-20, 1 mM DTT) containing 0.4 ng unphosphorylated Mouse ERK2 protein was added to each well of a black 384-well assay plate. 1 ul of 25x compound was added to each well and incubated at room temperature for 30 minutes to allow an opportunity for the compound to bind to the inactive enzyme. DMSO concentration during initial incubation is 6.7%. ERK2 activity was determined to be insensitive to DMSO concentrations up to 20%. ERK2 was then activated and it's kinase activity measured by the addition of 10 ul kinase buffer with the following components (final concentration per reaction): 2 ng active (phosphorylated) human MEK1 protein and 4 uM (total) ERK2 IMAP substrate peptides. |
| Affinity data for this assay | |
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