287891
5,6-Dichloro-1-β-D-ribofuranosylbenzimidazole
A potent, ATP-competitive, and specific inhibitor of casein kinase II (IC₅₀ = 6 µM).
Synonym(s):
5,6-Dichloro-1-β-D-ribofuranosylbenzimidazole, 5,6-Dichlorobenzimidazole Riboside, DRB, Casein Kinase II Inhibitor VII
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About This Item
Empirical Formula (Hill Notation):
C12H12Cl2N2O4
CAS Number:
Molecular Weight:
319.14
MDL number:
UNSPSC Code:
12352200
NACRES:
NA.77
Recommended Products
Quality Level
description
RTECS - DD7310000
Assay
≥98% (TLC)
form
solid
potency
6 μM IC50
manufacturer/tradename
Calbiochem®
storage condition
OK to freeze
color
white
solubility
DMSO: 3 mg/mL
ethanol: 3 mg/mL
shipped in
ambient
General description
A potent, ATP-competitive, and specific inhibitor of casein kinase II (IC50 = 6 µM). Reported to inhibit insulin-stimulated nuclear and cytosolic p70S6 kinase in CHO cells. Accentuates premature termination of transcription. Has been used to inhibit RNA polymerase II transcription which may be dependent on casein kinase II. Inhibits germinal vesicle breakdown in bovine oocytes. Induces G1/S cell cycle arrest.
Accentuates premature termination of transcription close to the promoter. Useful for isolation of RNA sequences near promoter sites that are responsible for mRNA formation. Useful for reversible superinduction of human fibroblast cultures. Potent, ATP-competivie and specific inhibitor of casein kinase II (IC50 = 6 µM). Has been used to inhibit RNA polymerase II transcription, which may be dependent on casein kinase II. Inhibits germinal vesicle breakdown in bovine oocytes.
Biochem/physiol Actions
Cell permeable: no
Primary Target
casein kinase II
casein kinase II
Product competes with ATP.
Reversible: no
Warning
Toxicity: Standard Handling (A)
Preparation Note
May require warming (47°C) to achieve complete dissolution.
Reconstitution
Room temperature (+20°C). Following reconstitution, aliquot and freeze (-20°C) for long term storage or refrigerate (4°C) for short term storage. Ethanol stock solutions are stable for up to 6 weeks at 4°C or for up to 3 months at -20°C.
Other Notes
Kim., S.J., and Kahn, C.R. 1997. Biochem. Biophys. Res. Commun. 234, 681.
Farin, C.E., and Yang, L. 1994. Mol. Reprod. Dev.37, 284.
Giardina, C., and Lis, J.T. 1993. J. Biol. Chem. 268, 23806.
Zandomeni, R., et al. 1986. J. Biol. Chem.261, 3414.
Mittleman, B., et al. 1983. J. Mol. Biol. 165, 461.
Zandomeni, R., et al. 1983. J. Mol. Biol. 167, 561.
Zandomeni, R., et al. 1982. Proc. Natl. Acad. Sci. USA79, 3167.
Stewart, M.W., et al. 1977. J. Gen. Virol.37, 221.
Farin, C.E., and Yang, L. 1994. Mol. Reprod. Dev.37, 284.
Giardina, C., and Lis, J.T. 1993. J. Biol. Chem. 268, 23806.
Zandomeni, R., et al. 1986. J. Biol. Chem.261, 3414.
Mittleman, B., et al. 1983. J. Mol. Biol. 165, 461.
Zandomeni, R., et al. 1983. J. Mol. Biol. 167, 561.
Zandomeni, R., et al. 1982. Proc. Natl. Acad. Sci. USA79, 3167.
Stewart, M.W., et al. 1977. J. Gen. Virol.37, 221.
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)
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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