203987
Butein
A cell-permeable, reversible, substrate competitive, plant polyphenol that acts as a specific protein tyrosine kinase inhibitor.
别名:
Butein, 2ʹ,4ʹ,3,4-Tetrahydroxychalcone
InChI
1S/C15H12O5/c16-10-3-4-11(14(19)8-10)12(17)5-1-9-2-6-13(18)15(20)7-9/h1-8,16,18-20H/b5-1+
InChI key
AYMYWHCQALZEGT-ORCRQEGFSA-N
assay
≥98% (HPLC)
form
solid
manufacturer/tradename
Calbiochem®
storage condition
OK to freeze, protect from light
color
yellow
solubility
DMSO: 10 mg/mL, methanol: soluble
shipped in
ambient
storage temp.
−20°C
Quality Level
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General description
A cell-permeable, reversible, substrate competitive, plant polyphenol that acts as a specific protein tyrosine kinase inhibitor. Potently inhibits the tyrosine kinase activity of the EGF receptor (IC50 = 65 µM) and p60c-src (IC50 = 65 µM) The inhibition is competitive with respect to ATP and non-competitive with respect to the substrate. Butein is also a potent antioxidant and anti-inflammatory agent. Has been shown to inhibit glutathione reductase (GSH-RD) and rat liver glutathione S-transferase (GST; IC50 = 9 µM). Reported to activate sirtuins and promote the survival of eukaryotic cells.
Biochem/physiol Actions
Cell permeable: yes
Primary Target
Tyrosine kinase activity of the EGF receptor
Tyrosine kinase activity of the EGF receptor
Product competes with ATP.
Reversible: yes
Target IC50: 65 µM against tyrosine kinase activity of the EGF receptor
Packaging
Packaged under inert gas
Preparation Note
Following reconstitution, aliquot and freeze (-20°C). Stock solutions are stable for up to 2 weeks at -20°C.
Other Notes
Howitz, K.T., et al. 2003. Nature425, 191.
Chan, S.C., et al. 1998. Planta Med.64, 153.
Yang, E.B., et al. 1998. Biochem. Biophys. Res. Commun. 245, 435.
Zhang, K., et al. 1997. Biochem. Pharmacol. 54, 1047.
Zhang, K., and Das, N.P. 1994. Biochem. Pharmacol. 47, 2063.
Chan, S.C., et al. 1998. Planta Med.64, 153.
Yang, E.B., et al. 1998. Biochem. Biophys. Res. Commun. 245, 435.
Zhang, K., et al. 1997. Biochem. Pharmacol. 54, 1047.
Zhang, K., and Das, N.P. 1994. Biochem. Pharmacol. 47, 2063.
Legal Information
CALBIOCHEM is a registered trademark of Merck KGaA, Darmstadt, Germany
Disclaimer
Toxicity: Standard Handling (A)
存储类别
11 - Combustible Solids
wgk
WGK 3
flash_point_f
Not applicable
flash_point_c
Not applicable
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