Biochem/physiol Actions

Reversible: no

Product competes with ATP.

Target IC₅₀: 104 nM against GSK-3β

Primary TargetGsk-3β

Cell permeable: yes

General description

A cell-permeable, potent inhibitor of glycogen synthase kinase-3 (GSK-3). Shown to inhibit GSK-3β with high potency (IC₅₀ = 104 nM). Inhibition is competitive with respect to ATP (K_i = 38 nM). Specificity has been reported using a panel of 28 different kinases, including Cdk2 and Cdk5 (IC₅₀ >100 µM). Shown to prevent tau phosphorylation at a GSK-3-specific site. Also shown to protect neuronal cells against Aβ-mediated neurodegeneration in vitro and reduce tauopathy in mice in vivo (30 µmol/kg delivered with 40% PEG400 and 40% dimethylacetamide in water). Caution: Do not use delivering vehicles containing dimethylamine for in vivo studies, as it is highly toxic to animals.

A cell-permeable thiazole-containing urea compound that acts as a potent inhibitor of GSK-3. Shown to inhibit GSK-3β with high potency (IC₅₀ = 104 nM). Inhibition is competitive with respect to ATP (K_i = 38 nM). Specificity has been reported using a panel of 28 different kinases, including Cdk2 and Cdk5 (IC₅₀ >100 µM). Shown to prevent tau phosphorylation at a GSK-3-specific site. Also shown to protect neuronal cells against Aβ-mediated neurodegeneration in vitro and reduce tauopathy in mice in vivo (30 µmol/kg delivered with 40% PEG400 and 40% dimethylacetamide in water). Caution: Do not use delivering vehicles containing dimethylamine for in vivo studies, as it is highly toxic to animals. A 25 mM (5 mg/649 µl) solution of GSK-3β Inhibitor VIII (Cat. No. 361557) in DMSO is also available.

Legal Information

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

Other Notes

Noble, W., et al. 2005. Proc. Natl. Acad. Sci. USA102, 6990.Bhat, R., et al. 2003. J. Biol. Chem.278, 45937.

Packaging

Packaged under inert gas

5 mg in Plastic ampoule

Reconstitution

Following reconstitution aliquot and freeze (-20°C). Stock solutions are stable for up to 3 months at -20°C.

Warning

Toxicity: Carcinogenic / Teratogenic (D)