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218705

Sigma-Aldrich

Casein Kinase I Inhibitor, D4476

InSolution, ≥95%

Synonym(s):

InSolution Casein Kinase I Inhibitor, D4476

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About This Item

Empirical Formula (Hill Notation):
C23H18N4O3
Molecular Weight:
398.41
UNSPSC Code:
12352200
NACRES:
NA.77

Quality Level

Assay

≥95% (HPLC)

form

liquid

manufacturer/tradename

Calbiochem®

storage condition

OK to freeze
desiccated (hygroscopic)
protect from light

shipped in

wet ice

storage temp.

−20°C

General description

A cell-permeable, potent, and relatively specific ATP-competitive inhibitor of CK1 (IC50 = 200 nM from S. pombe; 0.3 µM for CK1δ) and ALK5 (IC50 = 500 nM). A weak inhibitor of p38α MAP kinase (IC50 = 12 µM) and several other kinases tested, including PKB, SGK, and GSK-3β. Suppresses the site-specific phosphorylation (Ser322 and Ser325) and nuclear exclusion of FOXO1A in H4IIE hepatoma cells. Shown to be ~10-fold more potent than IC261 (Cat. No. 400090; IC50 = 2.5 µM for CK1).

Biochem/physiol Actions

Cell permeable: yes
Primary Target
CK1, CK1d
Product competes with ATP.
Reversible: no
Target IC50: 0.2 µM, 0.3 µM against CK1, CK1d, respectively

Packaging

Packaged under inert gas
Please refer to vial label for lot-specific concentration.

Warning

Toxicity: Irritant (B)

Physical form

A 10 mM (1 mg/251 µl) solution of Casein Kinase I Inhibitor, D4476 (Cat. No. 218696) in DMSO

Reconstitution

Following initial use, aliquot and refrigerate (4°C).

Other Notes

Rena, G., et al. 2004. EMBO Reports5, 60.

Legal Information

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

Certificates of Analysis (COA)

Search for Certificates of Analysis (COA) by entering the products Lot/Batch Number. Lot and Batch Numbers can be found on a product’s label following the words ‘Lot’ or ‘Batch’.

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