Information provided in the product description is from published literature. Due to the nature of scientific experimentation, your results (e.g., selectivity and effective concentrations) or specific application for this product may differ. If you have questions about how this product fits your application, please contact our technical support staff.
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Steffimycin B is an anthracycline bacterial metabolite originally isolated from Streptomyces.1 It binds to DNA, preferentially intercalating at sites containing cytosine and guanine.2 Steffimycin B is cytotoxic to MCF-7, KB, NCI-H187, and Vero cells (IC50s = 3.5, 6.75, 3.28, and 10.5 μM, respectively).3 It is active against M. tuberculosis (MIC = 5.2 nM), B. cereus (MIC = 1.56 μg/ml), and P. falciparum (IC50 = 2.19 μM).
WARNING This product is not for human or veterinary use.
1. Antimycobacterial activity of an anthracycline produced by an endophyte isolated from Amphipterygium adstringens. Mol. Biol. Rep. 45(6), 2563-2570 (2018).
2. Site specificity of binding of antitumor antibiotics to DNA. Biopolymers 26(1), 121-135 (1987).
3. Antimalarial and antimycobacterial agents from Streptomyces sp. BCC27095. Tetrahedron Lett. 56(49), 6875-6877 (2015).