MilliporeSigma
All Photos(1)

Documents

218697

Sigma-Aldrich

Casein Kinase II Inhibitor I

The Casein Kinase II Inhibitor I, also referenced under CAS 17374-26-4, controls the biological activity of Casein Kinase II. This small molecule/inhibitor is primarily used for Phosphorylation & Dephosphorylation applications.

Sign Into View Organizational & Contract Pricing

Synonym(s):
Casein Kinase II Inhibitor I, TBB, TBBt, 4,5,6,7-Tetrabromobenzotriazole, 4,5,6,7-Tetrabromo-2-azabenzimidazole, CK2 Inhibitor
Empirical Formula (Hill Notation):
C6HBr4N3
CAS Number:
Molecular Weight:
434.71
MDL number:

Quality Level

assay

≥99% (HPLC)

form

solid

manufacturer/tradename

Calbiochem®

storage condition

OK to freeze
protect from light

color

white

solubility

DMSO: 10 mg/mL

shipped in

ambient

storage temp.

2-8°C

InChI

1S/C6HBr4N3/c7-1-2(8)4(10)6-5(3(1)9)11-13-12-6/h(H,11,12,13)

InChI key

OMZYUVOATZSGJY-UHFFFAOYSA-N

General description

A cell-permeable benzotriazolo compound that acts as a highly selective, ATP/GTP-competitive casein kinase II (CKII) inhibitor (IC50 = 900 nM and 1.6 µM for rat liver and human recombinant CKII, respectively) and DYRK (IC50<1 µM for DYRK1a). Specificity for CKII has been reported following the screening of 33 kinases, including PKA, Akt, PKC, MKK1, ERK2, p38, JNK, Lck, Lyn, and Syk. Also reported to inhibit NS3-associated viral helicase activity in hepatitis C virus (HCV) (IC50 = 20 and 60 µM using DNA and RNA substrates, respectively) and West Nile virus (WNV) (IC50 = 1.7 µM and 900 nM using DNA and RNA substrates, respectively).
A cell-permeable benzotriazolo compound that acts as a higly selective, reversible, and ATP/GTP-competitive inhibitor of casein kinase-2 (CK2) (IC50 = 900 nM and 1.6 M, using rat liver and human recombinant CK2, respectively) and DYRK (IC50<1 M for DYRK1a). Its specificity has been demonstrated using a panel of 33 kinases, including PKA, PKB, PKC, MKK1, Erk2, p38, JNK, Lck, Lyn, and Syk. Also shown to inhibit NS3-associated viral helicase activities in HCV (IC50 = 20 and 60 M, using DNA and RNA substrate, respectively) and WNV (IC50 = 1.7 and 900 nM, using DNA and RNA substrate, respectively). A 10 mM (5 mg/1.15 ml) solution of Casein Kinase II Inhibitor I in DMSO, is also available.

Biochem/physiol Actions

Cell permeable: yes
Product competes with ATP.
Reversible: yes
Target IC50: 900 nM and 1.6 µM, using rat liver and human recombinant CK2, respectively; <1 µM for DYRK1a

Packaging

Packaged under inert gas

Warning

Toxicity: Carcinogenic / Teratogenic (D)

Other Notes

Borowski, P., et al. 2003. Eur. J. Biochem.270, 1645.
Sarno, S., et al. 2003. Biochem. J.374, 639.
Zien, P., et al. 2003. Biochem. Biophys. Res. Commun.306, 129.
Ruzzene, M., et al. 2002. Biochem. J.364, 41.
Sarno, S., et al. 2001. FEBS Lett.496, 44.
Szyszka, R., et al. 1995. Biochem. Biophys. Res. Commun.208, 418.

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’.

Already Own This Product?

Documents related to the products that you have purchased in the past have been gathered in the Document Library for your convenience.

Visit the Document Library

Difficulty Finding Your Product Or Lot/Batch Number?

Product numbers are combined with Pack Sizes/Quantity when displayed on the website (example: T1503-25G). Please make sure you enter ONLY the product number in the Product Number field (example: T1503).

Example:

T1503
Product Number
-
25G
Pack Size/Quantity

Additional examples:

705578-5MG-PW

PL860-CGA/SHF-1EA

MMYOMAG-74K-13

1000309185

enter as 1.000309185)

Having trouble? Feel free to contact Technical Service for assistance.

Lot and Batch Numbers can be found on a product's label following the words 'Lot' or 'Batch'.

Aldrich Products

  • For a lot number such as TO09019TO, enter it as 09019TO (without the first two letters 'TO').

  • For a lot number with a filling-code such as 05427ES-021, enter it as 05427ES (without the filling-code '-021').

  • For a lot number with a filling-code such as STBB0728K9, enter it as STBB0728 without the filling-code 'K9'.

Not Finding What You Are Looking For?

In some cases, a COA may not be available online. If your search was unable to find the COA you can request one.

Request COA

Our team of scientists has experience in all areas of research including Life Science, Material Science, Chemical Synthesis, Chromatography, Analytical and many others.

Contact Technical Service