Molecular Weight(MW): 634.61
Novobiocin Sodium is an aminocoumarin antibiotic that targets bacterial DNA gyrase (TopoIV), used to treat susceptible gram positive bacteria.
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Cell viability and caspase 3/7 activity in MDA-MB-231 cells co-treated with carbenoxolone, novobiocin, ibrutinib and bisphosphonates. Cell viability (A) and caspase 3/7 activity (B) was determined after treatment with ZA (zoledronic acid), RIS (risedronate), IBN (ibandronate), ALN (alendronate) in combination with carbenoxolone, novobiocin and ibrutinib. All data are expressed as means of three different measure points of three independent experiments ± SEM and were normalized to BP treatment alone. Significances were calculated with the Mann Whitney U test (*p < 0.05; **p < 0.005).
Mol Cancer, 2014, 13(1):265.. Novobiocin Sodium purchased from Selleck.
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|Description||Novobiocin Sodium is an aminocoumarin antibiotic that targets bacterial DNA gyrase (TopoIV), used to treat susceptible gram positive bacteria.|
Novobiocin also interacts with Hsp90, altering the affinity of the chaperone for geldanamycin and radicicol and causing in vitro and in vivo depletion of key regulatory Hsp90-dependent kinases including v-Src, Raf-1, and p185(ErbB2). Novobiocin interferes with association of the co-chaperones Hsc70 and p23 with Hsp90.  Novobiocin specifically inhibits the maturation of the heme-regulated eIF2alpha kinase (HRI) in a concentration-dependent manner. Novobiocin induces the dissociation of Hsp90 and Cdc37 from immature HRI, while the Hsp90 cochaperones p23, FKBP52, and protein phosphatase 5 remained associated with immature HRI.  Novobiocin causes morphological and biochemical changes which lead to induction of cell death exhibiting characteristic features of metazoan apoptosis.  Novobiocin, a HSP90 inhibitor, could decrease the expression of SMYD3 and dose dependently inhibit the proliferation and migration of MDA-MB-231 human breast cancer cells. Novobiocin can inhibit the migration of breast cancer cells and such event may involve the downregulation of SMYD3.  Novobiocin, an aminocoumarin antibiotic, interferes with heat shock protein 90 and hypoxia inducible factor dependent gene expression and thus compromises cell survival. Novobiocin (500 礛) results in a significant increase of [Ca(2+)]i, decrease of forward scatter, increase of annexin-V-binding and enhances ceramide formation. Novobiocin stimulates eryptosis, an effect at least in part due to entry of extracellular Ca(2+) and formation of ceramide. 
-  Marcu MG, et al. J Biol Chem,?000, 275(47), 37181-37186.
-  Yun BG, et al. Biochemistry,?004, 43(25), 8217-8229.
-  Singh G, et al. Mol Biochem Parasitol,?005, 141(1), 57-69.
|In vitro||DMSO||100 mg/mL (157.57 mM)|
|Water||100 mg/mL (157.57 mM)|
|Ethanol||100 mg/mL (157.57 mM)|
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