benastatin B

Benastatin B is an inhibitor for glutathione S-transferase, that inhibits human pi class GST with an IC50 of 1.10 μg/mL. Benastatin B exhibits board-spectrum antibacterial efficacy, inhibits MRSA with MIC 3.1 μg/mL. Benastatin B exhibits anti-inflammatory efficacy through inhibition of IgE mediated β-hexosaminidase release with an IC50 of 79 μg/mL[1][2].

[1] Aoyama T, et al., Benastatins A and B, new inhibitors of glutathione S-transferase, produced by Streptomyces sp. MI384-DF12. II. Structure determination of benastatins A and B. J Antibiot (Tokyo). 1992 Sep;45(9):1391-6. DOI:10.7164/antibiotics.45.1391
[2] Tsakem B, et al., Structures, biosynthesis and biological activities of benastatins, anthrabenzoxocinones and fredericamycins. Bioorg Chem. 2024 Sep;150:107572. DOI:10.1016/j.bioorg.2024.107572