| Assay Method Information | |
| | IMAP-FP Assay |
| Description: | Condition 2: Activated ERK2 activity was determined in an IMAP-FP assay (Molecular Devices). Using this assay format, the potency (IC50) of each compound was determined from a 10 point (1:3 serial dilution, 3 uM starting compound concentration) titration curve using the following outlined procedure. 7.5 mL of compound (3333 fold dilution in final assay volume of 25 uL) was added to 15 uL of kinase buffer containing 0.0133 ng/mL (0.316 nM) of fully phosphorylated, mouse aERK2 enzyme. Following a 15 minute incubation, each reaction was initiated by the addition of 10 uL kinase buffer containing 2.45 uM ERK2 IMAP substrate peptides (2.25 uM-unlabeled IPTTPITTTYFFFK-COOH and 200 nM-labeled IPTTPITTTYFFFK-5FAM (5-carboxyfluorescein)-COOH), and 75 uM ATP. The final reaction in each well of 25 uL consists of 0.19 nM mouse ERK2, 900 nM unlabeled peptide, 80 nM labeled-peptide, and 30 uM ATP. Phosphorylation reactions were allowed to proceed for 40-45 minutes. |
| Affinity data for this assay | |
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