Fluorescence polarization-based competition binding assay for c-Jun N-terminal kinases 1 and 2
Francesco Ansideri1, Marcel Dammann2, Frank M Boeckler2
1Institute of Pharmaceutical Sciences, Department of Medicinal and Pharmaceutical Chemistry, Eberhard Karls Universität Tübingen, Auf der Morgenstelle 8, 72076 Tübingen, Germany.
Abstract:
In order to evaluate the isoform selectivity of novel inhibitors within the c-Jun N-terminal kinase (JNK) family, a fluorescence polarization-based competition binding assay, previously developed for JNK3, was extended to the other isoforms JNK1 and JNK2. The assay is based on the displacement of a versatile fluorescent pyridinylimidazole-based probe and was validated by testing the precursor of the probe as well as standard JNK inhibitors.
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