Siomycin A

Siomycin A

Catalog Number:
M001341760TOK
Mfr. No.:
TOK-S083
Price:
$486
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      • Overview
        • Siomycin is a macrocyclic thiopeptide antibiotic with potent and selective antibacterial activity first isolated from the fermentation product of Streptomyces sioyaensis by Nishimura in 1959. This member of the thiostrepton family is a potent inhibitor of the oncogenic transcription factor, FoxM1. In vitro, siomycin inhibits FoxM1-induced cell growth on soft agar and selectively kills transformed cells. Siomycin has anti-cancer properties.

          Siomycin is soluble in DMF and DMSO.

          Please contact us at for specific academic pricing.

          Background

          Siomycin inhibits protein synthesis in bacteria by interfering with rRNA binding, specifically the 23S rRNA. The reduction in transcription activity is reflected in the down-regulation of protein and mRNA levels of the transcription factor Forkhead box family ( FoxM1) and effects on downstream genes, Cdc25B, survivin and CENPB.

      • Properties
        • CAS Number
          12656-09-6
          Molecular Formula
          C71H81N19O18S5
          Molecular Weight
          1648.9
          Appearance
          White solid
          Solubility
          Soluble in DMF and DMSO. Slightly soluble in methanol and ethanol. Practically insoluble in water.
          Other Properties
          Source: Streptomyces sioyaensis
          Purity Level: >95% by HPLC
          Storage
          -20°C

          * For research use only

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