TAN 420E is a bacterial metabolite originally isolated from Streptomyces. It scavenges 2,2-diphenyl-1-picrylhydrazyl radicals in a cell-free assay (IC50 = 1.3 μM) and reduces thiobarbituric acid reactive substances (TBARS) in rat liver microsomes by 72% when used at a concentration of 100 μg/ml. TAN 420E is active against B. brevis, B. cereus, M. flavus, and S. aureus (MICs = 50-100 μg/ml). It is cytotoxic to P388 and KB lymphocytic leukemia cells (EC50s = 0.022 and 0.3 μg/ml, respectively).
A410099.1 is a BIRC (baculoviral IAP repeat-containing protein) inhibitor with EC50 values of 4.6, 9.2, 15.6, 19.9, and 93.9 nM for BIRC2/3/4/7/8 respectively, suitable for studying E3 ligases and PROTAC synthesis.
Altemicidin is a monoterpene alkaloid originally isolated fromS. sioyaensiswith acaricidal and anticancer activities.1It is acaricidal to two-spotted spider mites (T. urticae) in a greenhouse pot test at concentrations of 10 and 100 ppm. Altemicidin inhibits the growth of murine L1210 lymphocytic leukemia and IMC carcinoma cells (IC50s = 0.84 and 0.82 μg/ml, respectively). It is toxic to mice with an LD50value of 0.3 mg/kg.
1.Takahashi, A., Kurasawa, S., Ikeda, D., et al.Altemicidin, a new acaricidal and antitumor substance. I. Taxonomy, fermentation, isolation and physico-chemical and biological propertiesJ. Antibiot. (Tokyo)42(11)1556-1561(1989)