MB-3 is a drug which acts as a potent and selective inhibitor of the histone acetyltransferaseenzymeGCN5, which usually functions as a negative modulator of PGC-1α, and so MB-3 acts to indirectly activate PGC-1α. It is used in research into the role of the GCN5/PGC-1α pathway in the regulation of metabolism and cell differentiation.[1][2][3]
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^Mai A, Rotili D, Tarantino D, Ornaghi P, Tosi F, Vicidomini C, et al. (November 2006). "Small-molecule inhibitors of histone acetyltransferase activity: identification and biological properties". Journal of Medicinal Chemistry. 49 (23): 6897–907. doi:10.1021/jm060601m. PMID17154519.