385570
Heat Shock Factor 1 Inhibitor, KRIBB11
The Heat Shock Factor 1 Inhibitor, KRIBB11 controls the biological activity of Heat Shock Factor 1.
Sinonimo/i:
Heat Shock Factor 1 Inhibitor, KRIBB11, Hsp70 Induction Inhibitor II, N²-(1H-Indazol-5-yl)-N⁶-methyl-3-nitropyridine-2,6-diamine, HSF1 Inhibitor, KRIBB11, Heat Shock Protein Inhibitor III, p-TEFb hsp70 Promoter Recruitment Inhibitor
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About This Item
Formula empirica (notazione di Hill):
C13H12N6O2
Numero CAS:
Peso molecolare:
284.27
Numero MDL:
Codice UNSPSC:
12352200
Prodotti consigliati
Livello qualitativo
Saggio
≥98% (HPLC)
Forma fisica
solid
Produttore/marchio commerciale
Calbiochem®
Condizioni di stoccaggio
OK to freeze
protect from light
Colore
orange-yellow
Solubilità
DMSO: 50 mg/mL, brown
Condizioni di spedizione
ambient
Temperatura di conservazione
−20°C
Stringa SMILE
CNC(C=C1)=NC(NC2=CC3=C(NN=C3)C=C2)=C1[N+]([O-])=O
Descrizione generale
A cell-permeable 2,6-diaminopyridine compound that interacts with HSF1 (heat shock factor 1) in a reversible manner and prevents HSF1 from recruiting p-TEFb (positive transcription elongation factor b) to the hsp70 promoter site (IC50 ≤3 µM in HCT-116 ChIP assays), a critical step for the p-TEFb CDK9 subunit-catalyzed pol II CTD (RNA polymerase II c-terminal domain) Ser-2 phosphorylation and transcription activation upon heat shock induction (IC50<1, <3, <5, and <10 µM, respectively, against reporter, HSP47, HSP27, and HSP70 transcription in HCT-116 cultures). Reported to exhibit antiproliferation activity against several cancer cultures in vitro (IC50 ranges from 3 to 8 µM) and effectively suppress HCT-116-derived tumor growth in mice in vivo (by 47.4% on day 31; single i.p. dosage of 50 mg/kg on day 13 after cancer implantation). Does not affect TNF-α-induced NF-κB activity in HeLa or heat shock-induced HSF1 ser230 phosphorylation and promoter association in HCT-116 even at concentrations as high as 10 µM.
A cell-permeable 2,6-diaminopyridine compound that interacts with HSF1 in a reversible manner and prevents HSF1 from recruiting p-TEFb to the hsp70 promoter site (IC50 ≤3 µM in HCT-116 ChIP assays), a critical step for heat shock-induced transcription activation (IC50<1, <3, <5, and <10 µM, respectively, against reporter, HSP47, HSP27, and HSP70 transcription in HCT-116 cultures). Reported to exhibit antiproliferation activity against several cancer cultures in vitro (IC50 from 3 to 8 µM) and effectively suppress HCT-116-derived tumor growth in mice in vivo (50 mg/kg i.p.).
Confezionamento
Packaged under inert gas
Attenzione
Toxicity: Standard Handling (A)
Ricostituzione
Following reconstitution, aliquot and freeze (-20°C). Stock solutions are stable for up to 6 months at -20°C.
Altre note
Yoon, Y.J., et al. 2010. J. Biol. Chem.286, 1737.
Note legali
CALBIOCHEM is a registered trademark of Merck KGaA, Darmstadt, Germany
Codice della classe di stoccaggio
11 - Combustible Solids
Classe di pericolosità dell'acqua (WGK)
WGK 3
Punto d’infiammabilità (°F)
Not applicable
Punto d’infiammabilità (°C)
Not applicable
Certificati d'analisi (COA)
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Young Ju Yoon et al.
The Journal of biological chemistry, 286(3), 1737-1747 (2010-11-17)
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