345834

Genistein

From soybean, a cell-permeable, reversible, substrate competitive inhibitor of protein tyrosine kinases, including autophosphorylation of epidermal growth factor receptor kinase (IC₅₀ = 2.6 µM).

• Synonym(s): Genistein, Soybean, 4ʹ,5,7-Trihydroxyisoflavone
• Empirical Formula (Hill Notation): C₁₅H₁₀O₅
• CAS Number: 446-72-0
• Molecular Weight: 270.24
• UNSPSC Code: 12352200
• NACRES: NA.77
• MDL number: MFCD00016952
• Assay: ≥95% (HPLC)
• Form: solid
• Storage condition: OK to freeze, protect from light

Properties

• Product Name: Genistein, Soybean, A cell-permeable, reversible, substrate competitive inhibitor of protein tyrosine kinases, including autophosphorylation of epidermal growth factor receptor kinase (IC₅₀ = 2.6 µM).
• Quality Segment: 100
• description: Merck USA index - 14, 4391
• assay: ≥95% (HPLC)
• form: solid
• manufacturer/tradename: Calbiochem^®
• storage condition: OK to freeze, protect from light
• color: white
• solubility: DMSO: 200 mg/mL
• shipped in: ambient
• storage temp.: −20°C
• SMILES string: [o]1c2c([c](c(c1)c3ccc(cc3)O)=O)c(cc(c2)O)O
• InChI: 1S/C15H10O5/c16-9-3-1-8(2-4-9)11-7-20-13-6-10(17)5-12(18)14(13)15(11)19/h1-7,16-18H
• InChI key: TZBJGXHYKVUXJN-UHFFFAOYSA-N

Description

General description

A cell-permeable, reversible, substrate competitive inhibitor of protein tyrosine kinases, including autophosphorylation of epidermal growth factor receptor kinase (IC₅₀ = 2.6 µM). The inhibition is competitive with respect to ATP and non-competitive with respect to the phosphate acceptor. Inhibits tumor cell proliferation and induces tumor cell differentiation. Inhibits exogenous substrate phosphorylation by EGFR kinase and pp60^v-src with similar potencies (IC₅₀ = 20-25 µM). Has only a trivial effect on PKC and PKA (IC₅₀ >350 µM). Produces cell cycle arrest and apoptosis in Jurkat T-leukemia cells. Prevents anti-CD3 monoclonal antibody-induced thymic apoptosis. Also inhibits topoisomerase II activity in vitro. Blocks oxidative DNA damage in vitro.

Biochem/physiol Actions

Cell permeable: yes

Primary Target
EGFR kinase

Product does not compete with ATP.

Reversible: yes

Target IC₅₀: 2.6 µM against autophosphorylation of epidermal growth factor receptor kinase

Other Notes

Constantinou, A., and Huberman, E. 1995. Proc. Soc. Exp. Biol. Med. 208, 109.
Wei, H., et al. 1995. Proc. Soc. Exp. Biol. Med. 208, 124.
Wei, H., et al. 1995. Carcinogenesis17, 73.
Kobayashi, S., et al. 1994. J. Biol. Chem.269, 9011.
Migita, K., et al. 1994. J. Immunol.153, 3457.
Spinozzi, F., et al. 1994. Leuk. Res.18, 431.
Dhar, A., et al. 1990. Mol. Pharmacol.37, 519.
Hill, T.D., et al. 1990. Science248, 1660.
Dean, N.M., et al. 1989. Biochem. Biophys. Res. Commun.165, 795.
Akiyama, T., et al. 1987. J. Biol. Chem.262, 5592.

Legal Information

CALBIOCHEM is a registered trademark of Merck KGaA, Darmstadt, Germany

Disclaimer

Toxicity: Standard Handling (A)

Safety Information

• Pictograms: GHS07
• Signal Word: Warning
• Hazard Codes: H302
• Precautionary Statements: P264 - P270 - P301 + P312 - P501
• Hazard Classifications: Acute Tox. 4 Oral
• Storage Class: 11 - Combustible Solids
• Flash Point (°F): Not applicable
• Flash Point (°C): Not applicable