SP-600125 (129-56-6) is a selective inhibitor of c-Jun N-terminal kinase (JNK). Reversibly inhibits JNK1,2 and 3 (IC50's range from 40-90 nM). >300-fold selectivity for JNK as compared to related MAP kinases. Antiinflammatory activity. SP-600125 inhibits expression of presenilin-1 and Notch signaling in mouse brain. Cell permeable and active in vivo.
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