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126870

Alsterpaullone

A cell-permeable, potent, reversible, and ATP competitive inhibitor of GSK-3β (IC50 = 4 nM) and Cdk1/cyclin B (IC50 = 35 nM).

Synonym(s):

Alsterpaullone, 9-Nitro-7,12-dihydroindolo[3,2-d][1]benzazepin-6(5H)-one, 9-Nitropaullone, NSC 705701

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About This Item

Empirical Formula (Hill Notation):
C16H11N3O3
CAS Number:
237430-03-4
Molecular Weight:
293.28
UNSPSC Code:
12352200
NACRES:
NA.77
MDL number:
MFCD02683579
Assay:
≥95% (HPLC)
Form:
solid
Quality level:
100
Storage condition:
OK to freeze, protect from light
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Quality Level

100

assay

≥95% (HPLC)

form

solid

manufacturer/tradename

Calbiochem®

storage condition

OK to freeze, protect from light

color

light yellow to brown

solubility

DMSO: 20 mg/mL

shipped in

ambient

storage temp.

−20°C

SMILES string

[N+](=O)([O-])c1cc2c([nH]c3c2CC(=O)Nc4c3cccc4)cc1

InChI

1S/C16H11N3O3/c20-15-8-12-11-7-9(19(21)22)5-6-14(11)18-16(12)10-3-1-2-4-13(10)17-15/h1-7,18H,8H2,(H,17,20)

InChI key

OLUKILHGKRVDCT-UHFFFAOYSA-N

General description

A cell-permeable, potent, reversible, and ATP competitive inhibitor of cdk1/cyclin B (IC50 = 35 nM) and GSK-3β (IC50 = 4 nM). One of the most active paullones that acts by competing with ATP for binding to GSK-3β and inhibits the phosphorylation of tau. Also inhibits the activity of Cdk5/p25-dependent phosphorylation of DARPP-32 (a 32 kDa dopamine and adenosine 3′,5′-monophosphate-regulated phosphoprotein). Displays remarkable antitumor activity in vitro. Inhibits growth of the colon cancer cell line HCT-116, with an IC50 in the nanomolar range.

Biochem/physiol Actions

Cell permeable: yes
Primary Target
GSK-3β, Cdk1/cyclin B
Product competes with ATP.
Reversible: yes
Target IC50: 4 nM, 35 nM, against GSK-3β, Cdk1/cyclin B, respectively

Packaging

Packaged under inert gas

Preparation Note

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

Other Notes

Leost, M., et al. 2000. Eur. J. Biochem.267, 5983.
Schultz, C., et al. 1999. J. Med. Chem. 42, 2909.

Legal Information

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

Disclaimer

Toxicity: Standard Handling (A)

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Storage Class

11 - Combustible Solids

wgk

WGK 3

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