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About This Item

Empirical Formula (Hill Notation):
C15H13Cl2N3O2
Molecular Weight:
338.19
MDL number:
UNSPSC Code:
12352200
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Quality Level

Assay

≥95% (HPLC)

form

solid

manufacturer/tradename

Calbiochem®

storage condition

OK to freeze
protect from light

color

white

solubility

DMSO: 50 mg/mL

shipped in

ambient

storage temp.

−20°C

SMILES string

ClC1=C(Cl)C(N(C)C(C(OCC)=O)=C2/C(C#N)=C\N)=C2C=C1

General description

A cell-permeable N-methylindolyl-enaminonitrile that acts as a more potent inhibitor than TG003 (Cat. No. 219479) against CLK1 activity (IC50 = 19.7 and 48.6 nM, respectively) by targeting the kinase ATP binding site in a non-ATP mimetic fashion. KH-CB19 is also reported to exhibit higher potency than TG003 against DYRK1A (IC50 = 55.2 vs. 156.1 nM, respectively) and CLK3 (IC50 = 0.53 vs. >4 µM, respectively), while exhibiting no activity against a panel of 71 other protein kinases. Thermostability shift assay reveals stronger interaction of KH-CB19 toward CLK4 than CLK1, predicting better or at least comparable potency against CLK4. KH-CB19 is shown to be more effective than TG003 in suppressing both basal and TNF-α-stimulated phosphorylation of serine/arginine rich proteins SRp55 (77.5% vs. 45% inhibition by 5 µM respective inhibitor against stimulated level) and SRp75 (80% vs. 27.5% inhibition by 5 µM respective inhibitor against stimulated level), as well as human tissue factor spliced variants, flTF and asHTF, mRNA levels in human microvascular endothelial cells HMEC-1.

Packaging

Packaged under inert gas

Warning

Toxicity: Standard Handling (A)

Reconstitution

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

Other Notes

Fedorov, O., et al. 2011. Chem. Biol.18, 67.

Legal Information

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

Storage Class Code

11 - Combustible Solids

WGK

WGK 3

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable


Certificates of Analysis (COA)

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