IT-143B is a bacterial metabolite that has been found in S. iakyrus.1 It inhibits the proliferation of OS-RC-2 and ACHN cancer cells (IC50s = 22 and 98 μM, respectively). |1. Li, K., Liang, Z., Chen, W., et al. Iakyricidins A-D, antiproliferative piericidin analogues bearing a carbonyl group or cyclic skeleton from Streptomyces iakyrus SCSIO NS104. J. Org. Chem. 84(19), 12626-12631 (2019).
IT-143A is a bacterial metabolite originally isolated fromStreptomycessp. IT-143.1It is active against the bacteriumM. luteus(MIC = 6.25 μg/ml) and the fungiA. fumigatusandT. rubrumin vitro(MICs = 12.5-25 μg/ml). 1.Urakawa, A., Sasaki, T., Yoshida, K., et al.IT-143-A and B, novel piericidin-group antibiotics produced by Streptomyces SpJ. Antibiot. (Tokyo)49(10)1052-1055(1996)
ST-148 is a potent inhibitor for Dengue virus capsid. ST-148-enhanced capsid protein self-interaction perturbs assembly and disassembly of DV nucleocapsids, probably by inducing structural rigidity.