mi503

MI-503 is an efficient and selective Menin-MLL inhibitor with an IC50 of 14.7 nM. In human MLL leukemia cell lines, MI-503 has a significant growth inhibition effect (GI = 250 nM-570 nM).

Wychimicin C, a spirotetronate polyketide isolated from the rare actinomycete, Actinocrispum wychmicini strain MI503-AF4, demonstrates potent antibacterial efficacy. Specifically, it exhibits significant activity against methicillin-resistant Staphylococcus aureus (IC 50 =0.125-0.5 μg/mL) and Enterococcus faecalis/faecium (IC 50 =0.125-0.25 μg/mL) [1] [2].

Wychimicin A, a spirotetronate polyketide isolated from the rare actinomycete Actinocrispum wychmicini strain MI503-AF4, exhibits potent antibacterial activity. Specifically, it demonstrates efficacy against methicillin-resistant Staphylococcus aureus (IC 50 = 0.125-0.5 μg/mL) and Enterococcus faecalis/faecium (IC 50 = 0.125-0.25 μg/mL) [1] [2].