| Assay Method Information | |
| | MEK Inhibition Assay |
| Description: | Reagents:Reaction buffer: 20 mM Hepes (pH 7.5), 10 mM MgCl2, 1 mM EGTA, 0.02% Brij35, 0.02 mg/mL BSA, 0.1 mM Na3VO4, 2 mM DTT, 1% DMSOEnzyme: MEK1, Invitrogen cat #PV3303N-terminal His-tagged recombinant human full length protein, expressed in insect cells. Activated in vitro by RAFT. MW=49.2 kDa, GenBank Accession No. NP_002746.Substrate: 5 μM ERK2 (K52R),Kinase-dead mutant, (GenBank Accession No. NM_0011949), aa2-358 with N-terminal His6 tag, MW=43.63 kDa, expressed in E. coli.The substrate was prepared in freshly prepared Reaction Buffer. The kinase was delivered into the substrate solution and gently mixed. Test compounds were delivered in 100% DMSO into the kinase reaction mixture by Acoustic technology (Echo550; nanolitter range), and incubated for 20 min at room temperature. 33P-ATP was delivered into the reaction mixture to initiate the reaction. The reaction mixture was incubated for 2 hours at room temperature. Kinase activity was detected by P81 filter-binding method. |
| Affinity data for this assay | |
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