The JAK3 Inhibitor II, also referenced under CAS 211555-04-3, controls the biological activity of JAK3. This small molecule/inhibitor is primarily used for Phosphorylation & Dephosphorylation applications.
Synonym(s):
JAK3 Inhibitor II, 4-[(3ʹ-Bromo-4ʹ-hydroxyphenyl)amino]-6,7-dimethoxyquinazoline, WHI-P154
A potent, cell-permeable, reversible, ATP-competitive, and specific inhibitor of JAK3 (IC50 = 5.6 µM). Has no effect on either JAK1 or JAK2. Has also been shown to prevent the ionizing radiation-induced activation of c-Jun in DT-40 cells. Also acts as a potent inhibitor of glioblastoma cell adhesion and migration.
Biochem/physiol Actions
Cell permeable: yes
Primary Target JAK-3
Product competes with ATP.
Reversible: yes
Target IC50: 5.6 µM against JAK3
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
Ghosh, S., et al. 2001. Acta Crystallogr. C.57, 76. Sudbeck, E.A., et al. 1999. Clin. Cancer Res. 5, 1569. Goodman, P.A., et al. 1998. J. Biol. Chem. 273, 17742. Narla, R.K., et al. 1998. Clin Cancer Res.4, 2463.
Legal Information
CALBIOCHEM is a registered trademark of Merck KGaA, Darmstadt, Germany
Storage Class Code
11 - Combustible Solids
WGK
WGK 3
Certificates of Analysis (COA)
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Clinical cancer research : an official journal of the American Association for Cancer Research, 5(6), 1569-1582 (1999-07-02)
A novel homology model of the kinase domain of Janus kinase (JAK) 3 was used for the structure-based design of dimethoxyquinazoline compounds with potent and specific inhibitory activity against JAK3. The active site of JAK3 in this homology model measures
The title compounds, C16H15BrN3(O3)(+).Cl(-).CH4O (WHI-P154) and C16H16N3(O3)(+).Cl(-) (WHI-P180), are potent inhibitors [WHI-P154 with IC50 = 5.6 microM and WHI-P180 with IC50 = 4.0 microM for epidermal growth factor receptor (EGFR) kinase inhibition] of the EGFR tyrosine kinase as well as
Clinical cancer research : an official journal of the American Association for Cancer Research, 4(10), 2463-2471 (1998-10-31)
Glioblastoma multiforme is a highly invasive primary brain tumor with a disappointingly high local recurrence rate and mortality despite intensive multimodality treatment programs. Therefore, new agents that are capable of inhibiting the infiltration of normal brain parenchyma by glioblastoma cells
The Journal of biological chemistry, 273(28), 17742-17748 (1998-07-04)
Exposure of B-lineage lymphoid cells to ionizing radiation induces an elevation of c-jun proto-oncogene mRNA levels. This signal is abrogated by protein-tyrosine kinase (PTK) inhibitors, indicating that activation of an as yet unidentified PTK is mandatory for radiation-induced c-jun expression.
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