400090
IC261
A cell-permeable, reversible, potent and selective inhibitor of casein kinase (CK1) that inhibits CK1δ (IC50 = 0.7-1.3 µM) and CK1ε (IC50 = 0.6-1.4 µM) isozymes.
Synonym(s):
IC261, 3-[(2,4,6-Trimethoxyphenyl)methylidenyl]-indolin-2-one, SU5607, Casein Kinase I Inhibitor VI
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About This Item
Empirical Formula (Hill Notation):
C18H17NO4
CAS Number:
Molecular Weight:
311.33
UNSPSC Code:
12352200
MDL number:
Assay:
≥95% (sum of two isomers, HPLC)
Form:
solid
Storage condition:
OK to freeze, protect from light
Quality Segment
assay
≥95% (sum of two isomers, HPLC)
form
solid
manufacturer/tradename
Calbiochem®
storage condition
OK to freeze, protect from light
color
yellow
solubility
DMSO: 100 mg/mL
shipped in
ambient
storage temp.
−20°C
General description
A cell-permeable, reversible, potent and selective inhibitor of Casein Kinase (CK1) that inhibits the CK1δ (IC50 = 0.7-1.3 µM) and CK1ε (IC50 = 0.6-1.4 µM) isozymes. Also inhibits CK1α1 at much higher concentrations (IC50 = 11-21 µM). The inhibition is competitive with respect to ATP. Has only a trivial effect on p34cdc2 and p55fyn (IC50s >100 µM). Blocks the phosphorylation of p53 by CK1δ and CK1ε, thereby modulating p53′s effect on the cell cycle. At low micromolar concentrations, IC261 inhibits cytokinesis causing a transient mitotic arrest.
Biochem/physiol Actions
Cell permeable: yes
Primary Target
CK1δ
CK1δ
Product competes with ATP.
Reversible: yes
Target IC50: 0.7-1.3 µM, 0.6-1.4 µM, against CK1δ and CK1ε isozymes, respectively
Packaging
Packaged under inert gas
Preparation Note
Following reconstitution, aliquot, purge with inert gas, and freeze (-20°C). Stock solutions are stable for up to 6 months at -20°C when stored under an inert gas.
Other Notes
Behrend, L., et al. 2000. Oncogene19, 5303.
Mashhoon, N., et al. 2000. J. Biol. Chem.275, 20052.
Knippschild, U., et al. 1997. Oncogene15, 1727.
Mashhoon, N., et al. 2000. J. Biol. Chem.275, 20052.
Knippschild, U., et al. 1997. Oncogene15, 1727.
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
Certificates of Analysis (COA)
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Global Trade Item Number
| SKU | GTIN |
|---|---|
| 400090-5MG | 04055977212372 |