T6951
TBBz
≥98% (HPLC), powder
Synonyme(s) :
4,5,6,7-Tetrabromobenzimidazole
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About This Item
Formule empirique (notation de Hill):
C7H2N2Br4
Numéro CAS:
Poids moléculaire :
433.72
Numéro MDL:
Code UNSPSC :
12352200
ID de substance PubChem :
Nomenclature NACRES :
NA.77
Produits recommandés
Pureté
≥98% (HPLC)
Forme
powder
Solubilité
DMSO: >10 mg/mL at 60 °C, clear
Température de stockage
2-8°C
Chaîne SMILES
Brc1c(Br)c(Br)c2[nH]cnc2c1Br
InChI
1S/C7H2Br4N2/c8-2-3(9)5(11)7-6(4(2)10)12-1-13-7/h1H,(H,12,13)
Clé InChI
LOEIRDBRYBHAJB-UHFFFAOYSA-N
Application
TBBz has been used as a CK2 inhibitor in HeLa cells and rat septal neurons.
Actions biochimiques/physiologiques
TBBz is a cell-permeable Casein Kinase-2 (CK2) inhibitor. CK2 inhibitors, 4,5,6,7-tetrabromobenzotriazole (TBBt, Sigma Cat. # T0826) and rabromobenzimidazole (TBBz), the latter of which was shown to discriminate between different molecular forms of CK2 in yeast. TBBt, with a pK(a) ~5, exists in solution at physiological pH almost exclusively (>99%) as the monoanion; whereas TBBz, with a pKa ~9, is predominantly (>95%) in the neutral form, both of obvious relevance to their modes of binding. In vitro, TBBt inhibits different forms of CK2 with Ki values ranging from 80 to 210 nM. TBBz discriminates better between CK2 forms, with Ki values ranging from 70-510 nM. TBBz is more effective than TBBt in inducing apoptosis and to a lesser degree, necrosis in transformed human cell lines. Dvelopment of shRNA strategies for the selective knockdown of the CK2α and CK2α′ isoforms reinforces the foregoing results, indicating that inhibition of CK2 leads to attenuation of proliferation.
Notes préparatoires
TBBz is soluble in DMSO (60 deg C) at a concentration that is greater than 10 mg/ml.
Code de la classe de stockage
11 - Combustible Solids
Classe de danger pour l'eau (WGK)
WGK 3
Point d'éclair (°F)
Not applicable
Point d'éclair (°C)
Not applicable
Équipement de protection individuelle
Eyeshields, Faceshields, Gloves, type P2 (EN 143) respirator cartridges
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Maria Russo et al.
Oncotarget, 8(26), 42571-42587 (2017-05-11)
Despite the encouraging results of the innovative therapeutic treatments, complete remission is uncommon in patients affected by chronic lymphocytic leukaemia, which remains an essentially incurable disease. Recently, clinical trials based on BH3-mimetic drugs showed positive outcomes in subjects with poor
James S Duncan et al.
Molecular & cellular proteomics : MCP, 7(6), 1077-1088 (2008-02-09)
Recently protein kinases have emerged as some of the most promising drug targets; and therefore, pharmaceutical strategies have been developed to inhibit kinases in the treatment of a variety of diseases. CK2 is a serine/threonine-protein kinase that has been implicated
Florence Chaverneff et al.
Journal of neurochemistry, 109(3), 733-743 (2009-02-19)
The combination of bone morphogenetic protein 7 (BMP7) and neurotrophins (e.g. brain-derived neurotrophic factor, BDNF) protects septal neurons during hypoglycemic stress. We investigated the signaling mechanisms underlying this synergistic protection. BMP7 (5 nM) increased phosphorylation and nuclear translocation of BMP-responsive
Christian Schenk et al.
Journal of virology, 92(24) (2018-09-28)
Hepatitis C virus (HCV) nonstructural protein 5A (NS5A) is a phosphoprotein with key functions in regulating viral RNA replication and assembly. Two phosphoisoforms are discriminated by their different apparent molecular weights: a basally phosphorylated (p56) and a hyperphosphorylated (p58) variant.
Jacob P Turowec et al.
Oncotarget, 4(4), 560-571 (2013-04-20)
Protein kinase CK2 has emerged as a promising candidate for the treatment of a number of cancers. This enzyme is comprised of two catalytic subunits (CK2 and/or CK2α') that form complexes with homodimers of regulatory CK2β subunits. While catalytic and
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